HP Compaq manuals

posted in: Service Manuals | 180

Fixing a HP/Compaq laptop yourself? Need some help with taking the laptop apart? Here are links to manuals with step-by-step disassembly instructions. All these manuals are available from the HP website.

Here’s how to get the manual:
1. Follow the link
2. Select your model
3. Go to manuals
4. Find the maintenance and service guide and open it up (pdf file, some of them are huge)
5. Go to Removal and Replacement procedures chapter, you’ll find disassembly instructions in there



Manuals for the following Compaq Armada Notebook PC series. Get maintenance and service guide.

Compaq Armada 110, Compaq Armada 110s, Compaq Armada 1100, Compaq Armada 1500, Compaq Armada 1500c, Compaq Armada 1700, Compaq Armada 1750, Compaq Armada 3500, Compaq Armada 4100, Compaq Armada 4200, Compaq Armada 6500, Armada 7300, Compaq rmada 7400, Compaq Armada 7700, Compaq Armada 7800, Compaq Armada e500, Compaq Armada e500s, Compaq Armada E700, Compaq Armada m300, Compaq Armada m700, Compaq Armada SB, Compaq Armada V300

Manuals for the following Compaq Evo Notebook PC series. Get maintenance and service guide.

Compaq Evo n150, Compaq Evo n160, Compaq Evo n180, Compaq Evo n400c, Compaq Evo n410c, Compaq Evo n600c, Compaq Evo n610c, Compaq Evo n610v, Compaq Evo n620c, Compaq Evo n800c, Compaq Evo n800v, Compaq Evo n800w, Compaq Evo n1000c, Compaq Evo n1000v, Compaq Evo n1005v, Compaq Evo n1010v, Compaq Evo n1015v, Compaq Evo n1020v, Compaq Evo n1050v, Compaq Evo n200, Compaq Evo n110, Compaq vo n115

Manuals for the following HP Compaq Notebook PC series. Get maintenance and service guide.

HP Compaq 2400, HP Compaq 4400, HP Compaq 6100, HP Compaq 6200, HP Compaq 6300, HP Compaq 6305, HP Compaq 7400, HP Compaq 8200, HP Compaq 8400, HP Compaq 9400, HP Compaq nc4000, HP Compaq nc4010, HP Compaq nc4200, HP Compaq nc6000, HP Compaq nc6400, HP Compaq nc8000, HP Compaq nw8000, HP Compaq nw8240, HP Compaq nx4300, HP Compaq nx4800, HP Compaq nx4820, HP Compaq nx5000, HP Compaq nx6130, HP Compaq nx7000, HP Compaq nx7010, HP Compaq nx7100, HP Compaq nx7200, HP Compaq nx7220, HP Compaq nx7300, HP Compaq nx9000, HP Compaq nx9005, HP Compaq nx9008, HP Compaq nx9010, HP Compaq nx9020, HP Compaq nx9030, HP Compaq nx9040, HP Compaq nx9100, HP Compaq nx9105, HP Compaq nx9110, HP Compaq nx9500, HP Compaq nx9500A, HP Compaq nx9600

Manuals for the following HP Pavilion Notebook PC series. Get maintenance and service guide.

HP Pavilion de2000, HP Pavilion dv1000, HP Pavilion dv2000, HP Pavilion dv4000, HP Pavilion dv5000, HP Pavilion dv6000, HP Pavilion dv8000m, HP Pavilion dv9000, HP Pavilion n Notebook PC series, HP Pavilion tx1000, HP Pavilion xf Notebook PC series, HP Pavilion xh Notebook PC series, HP Pavilion xt Notebook PC series, HP Pavilion xu Notebook PC series, HP Pavilion xz Notebook PC series, HP Pavilion zd7000, HP Pavilion zd8000, HP Pavilion ze1000, HP Pavilion ze2000, HP Pavilion ze4000, HP Pavilion ze5000, HP Pavilion zt1000, HP Pavilion zt3000, HP Pavilion zu1000, HP Pavilion zv5000, HP Pavilion zv6000, HP Pavilion zx5000

Manuals for the following HP Presario Notebook PC series. Get maintenance and service guide.

Compaq Presario 300, Compaq Presario 700, Compaq Presario 800, Compaq Presario 900, Compaq Presario 1000, Compaq Presario 1100, Compaq Presario 1200, Compaq Presario 1400, Compaq Presario 1500, Compaq Presario 1600, Compaq Presario 1700, Compaq Presario 1800, Compaq Presario 1900, Compaq Presario 2100, Compaq Presario 2200, Compaq Presario 2500, Compaq Presario 2700, Compaq Presario 2800, Compaq Presario 3000, Compaq Presario B1000, Compaq Presario B2000, Compaq Presario B3000, Compaq Presario C300, Compaq Presario C500, Compaq Presario F500, Compaq Presario M2000, Compaq Presario R3000, Compaq Presario R4000, Compaq Presario V1000, Compaq Presario V2000, Compaq Presario V3000, Compaq Presario V4000, Compaq Presario V5000, Compaq Presario V6000, Compaq Presario X1000, Compaq Presario X1100, Compaq Presario X1200, Compaq Presario X1300, Compaq Presario X1400, Presario X1500, Compaq Presario X6000

Manuals for the following HP Special Edition Notebook PCs. Get maintenance and service guide.

Special Edition L2000 CTO Notebook PC, Special Edition L2005A3, Special Edition L2005A4, Special Edition L2005CL, Special Edition L2005CM, Special Edition L2005CO, Special Edition L2005CU, Special Edition L2005CX, Special Edition L2005US, Special Edition L2098XX, Special Edition L2099XX, Special Edition L2105CA, Special Edition L2105CL, Special Edition L2105NR, Special Edition L2205NR, Special Edition L2300 CTO Notebook PC, Special Edition L2310CU

UPDATE:

Here’s how you can fix known “No Video” issue on some HP Pavilion and Compaq laptops.



180 Responses

  1. Hi,
    Thanks for the links!
    Turns out my “won’t boot; blank screen” nx7000 just needed the VGA cable reseated.
    Having the manual made it that little bit easier.
    Magic!

    Rgds,
    Damian.

  2. Yep, that sounds about the same. Strange that the vid card would stop the whole thing booting, but hey, now I’ve seen it with my own eyes!

    Sadly, the magic was only short lived. It works for a bit and then fails in a similar fashion or by showing video artefacts which then crashes the machine anyway.

    Yet, annoyingly enough, if I pull the thing apart again and just reseat the VGA connector just above the keyboard, all is well again. I can’t work out exactly what’s wrong because the slightest pressure or movement causes it to fail. Its a few years old now but hasn’t been dropped off a cliff recently so what gives? VERY annoying, any other suggestions apart from a hammer or super glue?!?!? :-p

  3. compaq armada 110 ! Only keys that work are w,b & n. Is it the keyboard? When computer boots up it beeps for a few seconds straight.

  4. thanks for the great website! I have a zv6000 and the screen is almost black except for a slight image, I’ve attached an external monitor and the video works fine. So, I just received a replacement inverter. I’m ready to jump in but the HP manual doesn’t show how to take apart the LCD only how to remove.

    So here’s the question… I assume that the inverter is located in the LCD panel, is that correct? and does anyone know if it’s a pain to disassemble the frame? thanks, j

  5. Hi,

    My Dell Inspiron 9300 refuses to boot on AC adapter, with or without battery installed!

    The brief history of the laptop is as follows:

    I bought the laptop a little bit longer than one year and a half ago. Last year, I accidentally spilled water on it. It shut off by itself, but somebody turned it on immediately, it shut off by itself again. Then it won’t boot. I took the laptop apart, blew dry all the parts, and put them back together. It boots, but only when the battery has power in it AND the AC adapter is NOT plugged in. Isn’t that weird?!

    Last week, the laptop was off when I came back home (it was on when I went out). I found the light on the AC adapter was off by itself, and then the battery was drained. That was why the laptop was off. But I really had a very hard time turning it back on. Somehow the battery had a little power left, just enough to turn it back on, and within literally a second I plugged the AC power in and started charging the battery.

    Now the laptop is working again. But I am very annoyed by the fact that if the battery goes bad eventually, the laptop will be useless.

    Can someone please give me some hint? What possibly went wrong? How can I fix it?

    Thanks a lot!
    Peng

  6. rick,

    Compaq Armada 110 ! Only keys that work are w,b & n. Is it the keyboard? When computer boots up it beeps for a few seconds straight.

    Did you spill any liquid on the keyboard?
    It’s hard to guess what is wrong without testing the laptop with a known good keyboard. Most likely it’s just a bad keyboard, but it’s also possible that the keyboard controller on the motherboard is bad (not very common). I would try replacing the keyboard, you have a good chance to fix the laptop.

  7. thanks! I replaced the inverter on the zv6000, cost me a whopping $27 and now my laptop is back working. many thanks, jeff

  8. Frankhilde T. Endjala

    i am searching for my laptop software and operatindg system HP Pavilion dv500

  9. Sarah Z

    Hello! Your site is excellent, I just discovered it via google and it’s very very helpful. Question -> brother broke the 1, 2, alt, ctrl, ?, and I key. Many of the parts are lost. I took it to the shop, but since I’m overseas, they were very unexperienced, and weren’t quite sure what to do, told me I’d have to buy an entire new laptop keyboard similar to it for 1000 sr, which is really really expensive and won’t come for 2 weeks, I dunno what’s the deal. Also, super glue spilled on the underside of the I key which remained exposed cause the actual key is gone – which, although I attempted to remove it with acetone, I couldn’t get a hold of the acetone till the next day, and it was already dried and ruined, now the key requires an extra push when typing and has a lot of friction, which is super irritating and inefficient.

    Is there anything else I could try or should I just take the plunge and put my precious laptop in these guys’ hands? It’s still under warranty, but the warranty isn’t honored in a different country, only the country you bought it in, unfortunately. Thanks for any help, much much appreciated =)

  10. Does anyone knows where to find the disassembly instructions for the Compaq Presario 900?, the service manual is not available on the HP website that are mentioned on the links

  11. Does sombody know how too take apart a hp ze2000 for fixing my fan. I`w scruwed out all the scruw`s but the bottom of the computer still stuck does eny people her hawe a link to a video to do this??
    Thanks.

  12. I have just had a Compaq Presario M2000 handed to me with the words “it doesn’t work”. With both the power cable plugged in and not plugged in, it doesn’t boot. It has power as indicated by the power light, but that is all it does, power on. there are two leds blinking, one above the scroll [num lk] button and one next to the caps lock button. The hard drive does not power on, and the DVD ROM acts like its going to then stops, and repeats this over and over. It initially beeped twice when it was first powered on, but after removing and reseating the ram that stopped. As it sits right now there is nothing but one stick of ram in it, no HD, no DVD, the needed hardware to get it started. I’m stumped at this point. Also odd note, compaq says these are all intel, but this one has a Mobile Sempon Sticker on it. Any ideas?

  13. Levi,
    Did you try moving the memory module from one slot to another. Maybe one memory slot on the motherboard is defective.
    Also, find a test the laptop with a known good memory stick.

  14. jim hinds

    Should the computer boot using the a/c adapter/charger if the battery is completely dead or removed?

  15. Jim Hinds,
    If there is nothing wrong with the laptop, you should be able to boot even if the battery is dead or removed.

  16. Thank you cj2600!
    If the rubber cup underneath is damaged, will the new keyboard bought from a company that sells spare parts include a new rubber cup layout?

    Much thanks!!
    Sarah

  17. WILLIAM SOSA

    I HAVE A PRESARIOV5000 AND I’M HAVING PROBLEMS WITH MY LAPTOP TURNING ON. LAST TIME I WAS USING IT IT WAS WORKING JUST FINE AFTER I WAS DONE I TURNED IT OFF LIKE I USUALLY DO. WHEN I CAME BACK FROM WORK I FOUND ONE OF THE PROCESSOR ORANGE LIGHT ON. I THOUGH I HAD LEFT IT ON AND TRIED TO TURN IT OFF BUT IT WOULDN’T RESPOND TO ANYTHING I TRY DOING. I TRY REEBOTING, CHANGING MEMORY CARD DIFFERENT BATERIE AND OTHER TROUBLESHOOTING GUIDES BUT NOTHING SEEMS TO WORK. IF SOMEONE KNOWS A RESOLUTION TO MY PROBLEM I WOULD APRECIATE ANY HELP I CAN GET.

  18. manuel rivera

    my labtop goes on and all i see is blue seen & it stays like that

  19. mehran

    Dear Mis/Sir!
    I have had a Compaq Presario 900 since 2002. I have a problem by connecting my USB Stick with my Laptop. While I need to read my USB (Saver 512 Mbyte), I have to restart the Laptop every time. Would you please to help me to solve this problem.
    Thanks a lot,
    Mehran

  20. Daniel

    Will the LCD of the Compaq Evo n1050v work on the HP Compaq NX9010? Or is there any modification on the wiring needed?

  21. I have a compaq armada 1700 and it wont come on what do i do???

  22. Herb Krakau

    My daughter’s HP Pavilion zt1290 had a failed solder joint where one of the pins of the ac adapter connector goes into the motherboard. I re-soldered the connector, but now the machine won’t boot. Thanks to learning a bit from your site, I tried to systematically find out what was wrong. Here are a few of the things I tried & the symptoms that resulted:

    1) Tried to boot with only the motherboard, the screen, the processor heat sink, the fan, and the power adapter. At this point, the memory modules were the only other thing plugged in.
    Result: Fan starts up for 5 seconds or so, and turns off. Screen dark.

    2) Reset the system using a paper clip, as the HP manual suggests.
    Result: Same as 1).

    3) Added the optical drive with the XP system disk inserted.
    Result: The fan & screen behave as in 1), but the drive starts up & runs for a while (perhaps a minute – I didn’t time it), and seems to be seeking occasionally, based on the noise I could hear. Then the drive stops also.

    4) Removed optical drive and tried all the possible configurations of the 2 memory modules, one at a time in each of the 2 memory slots, and both in, but each in the opposite slot from where it had started.
    Result: Same as 1).

    5) Tried 1), 2) & 3) with an external monitor plugged in the VGA out port (with the laptop’s display still connected).
    Result: Same as 1) & the external display stays blank.
    Result: Same as 1).

    6) Playing around with the configurations, I noticed that the status LCD display on the front edge of a laptop would show the time. I started trying the buttons for the status display on the front edge and found that with an audio CD in the optical drive, I could get the display to show that it was trying to play the CD. That is, for example, to display would show it going to the first track and would start timing, as if it was playing the track. The buttons would allow me to switch tracks, and start/stop playing, at least according to the LCD display. The CD itself with spinning in the drive. I tried putting the speakers back, and the little board that has the external volume and audio on off buttons to see if I would hear music. There was no sound.

    I’m really perplexed, particularly since it had been booting up until this point when the power connector was working (before I took it apart). I’m pretty aware of precautions necessary to avoid static damage, so I don’t think it’s likely that that is what occurred. I’m also confused by the symptoms with the CDs that I described, because I don’t know the relationship between that kind of CD playing (from the front panel, with the computer off) and the rest of the computer.

    Any suggestions or advice would be very much appreciated. Thanks!

  23. hello there i have a compaq x1000 laptop and im having problem with it and i need an answer for this and hope you can help me..i was on my laptop and it shutted down in intermitted mode and when i plugged in the a/c adapter since it was low on battery and when i try turning it back on it boots up fans spinning and then a sec or 2 later it shuts down and it contiue doing this when i take the battery out and plug in the a/c adapter it wont turn on at all but when i plug the battery back in with the a/c adapter in it it boots up and then shuts itself off? its weird that it wont turn on without the battery it is 4 years old and i like to know what could be the problem? ty

  24. Herb Krakau,

    Tried to boot with only the motherboard, the screen, the processor heat sink, the fan, and the power adapter. At this point, the memory modules were the only other thing plugged in. Result: Fan starts up for 5 seconds or so, and turns off. Screen dark.

    Try starting the laptop without the LCD screen connected, use an external monitor instead. Check if the video cable is properly connected to the motherboard. If the video connector on the motherboard has pins inside, make sure there are no bent pins. Check if the memory module is seated properly, move it into another slot and test the laptop again.
    If for some reason you removed the CPU during disassembly, make sure it’s seated properly and LOCKED inside the socket.

  25. Lawrence

    I have a Compaq EVO and when i try to get on the internet it gives me an error that I don’t have a wireless card, but it is built into the computer. I have tried everything i can think of an i am still unable to connect to the internet. Router works fine. just can’t get on the net. PLEASE HELP ME!!

  26. cj2600

    Lawrence,
    Check the wireless card in the device manager. Do you see any yellow exclamation mark in the wireless card entry?
    Try reinstalling the driver. Try reseating the wireless card, just remove it from the socket and install back in place. Make sure the wireless connection is not disabled.
    I cannot give you 100% remedy for this problem, there could be many different hardware or software related issues.

  27. alberto

    compaq manuals are no longer aviabable, isn’t it?

  28. rikie

    I have compaq m2232AP, I plugged the AC adapter and tried to turn on the laptop. After I pushed on the power button, fans started spinning and were active for a few seconds, LED is on, but my laptop still blank (not display any thing) and not working, no beep sound.

    I try to reaseating RAM , harddrive and battrey, (like hp web site said) but stil not working.

    My AC adapter is work normally,it have 18.7 volt. my battery it so.

    please help me…

    Rikie_Indonesia

  29. cj2600

    Rikie,
    How many RAM modules are installed in the laptop? If you have two modules, try removing them one by one and test the laptop with each RAM stick separately. If you have only one module and reseating it doesn’t help, try replacing it with a known good memory module. It could be just a bad RAM.

  30. matt robinso

    thanks soo much! your site helped me more than you could imagine, i work in the it industry but for another company other than hp and i just needed to see the instructions and couldnt even navigate through hps’ site b/c im stupid. you helped a bunch.

    thanks
    thanks
    thanks

  31. Don U. Schulz

    How do I fix a :LOOSE SCREEN HINGES on Armada M700 ?

    Or where do I find the Instructions for fixing this problem ?

    Regards,

    Don

  32. qassem

    I have hp pavilion zt3000, I plugged the AC adapter and tried to turn on the laptop. After I pushed on the power button, fans started spinning and were active for a few seconds, LED is on, but my laptop still blank (not display any thing) and not working, no beep sound.

    I try to reaseating RAM , harddrive and battrey, (like hp web site said) but stil not working.

    My AC adapter is work normally,it have 18.7 volt. my battery it so.

    please help me…

  33. Andrea

    i have an HP Pavilion DV4266 EA (pavilion DV4000 series) and unfortunately some beer fall on my keyboard. i think that it has filled inside because the pc was working and when the beer falls on it, it shut down.
    what i have to do now? please help me. thanks!
    Andrea

  34. cj2600

    qassem,

    After I pushed on the power button, fans started spinning and were active for a few seconds, LED is on, but my laptop still blank (not display any thing) and not working, no beep sound.

    It can be a memory related problem. If you reseated the memory module and it didn’t help, try replacing it with a known good RAM.
    If you have two memory modules installed, remove them one by one and test the laptop with each module separately. It is possible that one of the modules is bad.
    Just in case try this. Unplug the power cord, remove the battery and wait for 2-3 minutes. Then plug the power cord and turn on the laptop. Sometimes it helps.

  35. cj2600

    Andrea,
    Unfortunately, there is not much you can do. It is necessary to open up the laptop and take a look at the motherboard. Do not use the laptop until then, you can make it worse. Take your laptop to a professional repair shop for diagnostics.

  36. emma apea

    my laptop is a hp compaq nx9000 and i was typing and a blue screen came up and it shut down, restarted and the screen has been black and blank since what causes this?

  37. cj2600

    Emma,
    Could be bad memory. Try reseating the memory modules first and if it doesn’t help, test the laptop with a working memory module.
    Also, remove the hard drive and try starting the laptop without it. Sometimes a faulty hard drive can halt the entire system. If you get video on the screen without the hard drive installed, but no video with the hard drive, most likely this is your problem.

  38. Zoran

    Hello,

    I have a problem with my LCD on HP nx9030. When I move my LCD back and forth, my screen goes blank although my computer is working. I have to restart to start it working again. Recently I found out the the problem is the cable going from my LCD to the main board. How can i replace the cable?

    BR,
    Zoran

  39. Andrew

    Hello,

    My Presario R3000 over the past week has been unable to connect through USB to my digital camera or External Hard Drive (from any USB port), won’t read a 1 Gig SD card through the card reader (it shows up in my ‘My Computer’ directory, but tells me to ‘insert a disk into drive F’ when I double-click on it), and refused to read a blank DVD (for backing-up my files).

    At the same time, however, it DOES allow my to use my USB-connected mouse, and will let me play CDs and DVDs.

    Do you have any idea what’s going on? I’m at a complete loss.

  40. cj2600

    Andrew,
    I think this could be a software related problem.
    The laptop “sees” your USB mouse, so most likely there is nothing wrong with USB ports. The laptop can play CDs and DVDs, so most likely there is nothing wrong with the optical drive or the motherboard controller.
    You can try this.
    1. Using System Restore revert the operating system back to the time when it was working properly. If it doesn’t help, go to the next step.
    2. Backup all important personal files and reinstall the operating system from scratch.

  41. The problem with the hp’s is not the cable. there is a small aluminum piece in the laptops screen. what happens is over time, the little plastic piece that covers the voltage converter slides over. then the aluminum piece ends up touching the back side of the plastic piece where the wires go in. all you have to do is take apart the monitor and slide the piece back over and its fixed. i just did it on my nc8000 that was having the same problem for a while. My screen would go out if the screen was moved but you could still see it a very little bit. Hope this helps.

  42. Andrew

    Thanks for the help!

    Well, after clearing away a bunch of running programs, some other stuff started connecting properly again (though it still doesn’t read my burned back-up DVDs), so I’m going to try a RAM upgrade first, but I’ll keep your advice in mind!

  43. im having problem with nx7010 with the power

  44. cj2600

    Andrew,
    I would try reinstalling the operating system first but adding extra RAM never hurts.

  45. Compaq evo n160, would only turn on once in a blue moon, then would switch off without warning, at random. Does not turn on at all at present.

    One light comes on on the laptop (the one saying the charger is plugged into the laptop). Battery charging light does not come on.
    Tried with memory, without memory, different slots, different memory. Tried battery only, PSU + battery, PSU only, also tried above with hard drive removed.
    Nothing happens!
    Its a new battery (it did manage to charge it a bit once when it was turned on, and stayed on for a hour or so) but also tried the original old battery. Its also a new psu, which is putting out 19v with the right amperage for that model.
    When it did power up, it worked fine until it turned off instantly after a random amount of time.
    Courier did let it fall out of the van on delivery, so put in a courier claim, but looking to find out the probably part that needs fixing/replacing.
    Nothing happens when power button pressed. Tried leaving it unplugged, without battery for hours, no joy. Tried removing the bios battery, and leaving it unplugged for ages, before putting battery back. No joy.
    Any suggestions?

  46. himanshu

    whenver i login to my laptop,window explorer gives error,tht window explorer is not responding and then it refreshes and again the same error message came again.Please suggest me why it is and how can i reasolve it.It is window explorer not the IE

  47. bruce masterson

    i bought a compaq armada on ebay, i got 3 batteries, but the laptopl only lights a few buttons a second and then goes out, is there something wrong with the laptop , or all the batteries, that were sold almost new, not anygood, i pushed the button on the back of them and get know light.

  48. cj2600

    Bruce Masterson,
    If your laptop doesn’t work with three different batteries then most likely there is something wrong with the laptop itself.
    Remove the battery and start the laptop from the AC adapter. Does it work from the AC power?

  49. i need serious help with my nx7010. my power cable is plugged in and i’ve triple-checked that nothing is loose. but what happens is that the battery charging LED sporadically shows a red (charging) light, a fully charged green once in a blue moon, and half the time it shows no light i.e. it’s not reading any incoming power.

    BUT the strange thing is that on my system tray (win XP) it says “On AC power”. WTF!?!?!?!

  50. Nimal Perera

    I am in need of a key pad for a HP Compaq nx9010 pc note book. Can some one please be good enough to advise me how I could find it for my laptop. Thanks

  51. Nimal Perera,
    You can find spare notebook parts on eBay or Amazon.

  52. my 700 compaq laptop won’t boot or start. only the led light is on. replaced the cmos battery on motherboard and it worked briefly but then went dead again. what could cause this and can i fix it? thanks in advance for any help!

  53. kathy,
    may be the memory is bad? test the laptop with a known good memory stick.

  54. Roger Diaz

    I have an HP Pavilion ze5460us laptop, key “O” doesn´t work and it beeps for 5-10 seconds on startup. I want to take apart the keyboard and check that specific key. After taking out and disconnecting the keyboard, the underside has a clear plastic cover which is bonded to the main board of the keyboard. The small screws which I suspect have to be removed to completely disassemble the keyboard are covered by this clear plastic shield. My question is, should I expect any complications when I take out the plastic cover and remove the screws to disassmeble the keyboard?

  55. Roger Diaz,
    You can damage the keyboard by taking it apart. Do you know that you can buy a new keyboard for Pavilion ZE5400 series for about $30 here? Just search for “HP ZE5400 keyboard”
    I would recommend to contact the seller before buying the keyboard, just to confirm that you are buy the right one.

  56. Roger Diaz,
    You can damage the keyboard by taking it apart. Do you know that you can buy a new keyboard for Pavilion ZE5400 series for about $30 on eBay? Just search for “HP ZE5400 keyboard”
    I would recommend to contact the seller before buying the keyboard, just to confirm that you are buy the right one.

  57. Thanks for the info, big help!

  58. William Sosa, a couple of things you can try.

    1) on booting press F8 and when the menu apears, choose Last Good Configuration.

    2) On booting press F8 and when the menu appears go into Safe Mode, then from Start go to Help And Support and run System Restore and restore to the last working restore point.

    Hope this helps.

  59. an 6cm Grey band appear on my LCD, what I’m going to do with it?

  60. Filicia,
    Take a look this post: Laptop has bad video on the LCD screen. What is wrong?
    From your description I would say that you’ll have to replace the screen.

  61. Boris D

    Hi, all can anyone help me find the fault on my HP NX 9040 laptop
    I turned it on but nothing started up! , the power led was off and know hard drive activity was noticed. power supply adapter check out ok! at 18.5volts but still know ‘led’ on! or hard drive sound. can anyone help?

  62. Boris D,
    Could be bad memory. Try reseating the memory module. If you have two memory modules installed into your laptop, remove them one by one and test the laptop with each module separately. It will help you to find out witch memory module is bad.

  63. shalendar

    I have compaq laptop model evo n160
    power button is not working How to on the power

  64. I have a HP Pavillion XH555 40 gig AMD 4 processor that just had Windows XP crash but when I went to reinstall the software, the bios now reads, “Internal hard drive – none”. I’ve since purchased a used Toshiba hard drive that I installed but I still got the same results, and I now have a cracked hard drive adapter to boot.

    The computer has been running great and the motherboard looks fine. I don’t have anything cracked underneath, from what I’ve seen so far, but I don’t know if this is something I can fix. Did it just crash and is done?

  65. Myslyn,
    Can you see the hard drive in the BIOS? Set the BIOS to default, if there is such an option. Run Hitachi’s drive fitness test to test the hard drive, I linked to this utility in “Resources”.

  66. Hi I have a Compaq Presario v6000 laptop was wondering if anyone knows how to remove scratches on the screen? The scratch is not too deep but you can see the scratch it you look close.

  67. Hi CJ2600,

    I thought no one answered my post…(whew!) No, I cannot see the hard drive in the BIOS at all. It just simply acts as if there is no hard drive attached, even the replacement hard drive I purchased is not showing up in the BIOS area. :-( I just have tried not to open it up any longer till I find out some other good suggestions.

    Thanks CJ.

    if anyone has any further suggestions on this issue…I’ll still try the Toshiba utility; thanks alot for adding it to the Resources page.

  68. I meant Hitachi, but it doesn’t really matter right now since the computer is not “seeing” the hard drive anyway, but it’ll be good to use it this issue can be resolved.

    Thanks again…

  69. I just wanted to thank you for a little piece of information I obtained on your web site today. It was about using a USB enclosure to mount the hard drive out of a laptop in order to access the hard drive in a laptop which had failed…my laptop!

    Thank you for the web site and useful information. You are appreciated!

    Michael Echols
    Ft. Myers, Florida

  70. miss_sunshine

    i really need your help!my laptop won’t startup.
    i pressed the ‘load windows normally’ on the black background..
    but it reboot again and again.i switch it on the whole night and it won’t stop.it just keep restarting.i’ve tried the hard drive self test and it pass all the test.im using compaq presario c300.
    tq!

  71. I have problem with my laptop Evo N1020v. When I try to turn on the laptop it don’t boot up but power led is on. Screen is black. I noticed that when my processor isn’t in socket and I try to turn on laptop it of course don’t boot up but all the two fans spin out. When the processor is in socket the two fans don’t spin out. It seems that there is some kind of problem with my processor and this is the reason my laptop don’t boot up. Some time ago my laptop boot up after many times of trying to turn it on. But now even acces many times don’t help.

  72. Awesome!! The manual helped a treat.. Same problem as Damian. Nx7000 no boot.. used he manual to disasemble, and found all i had to do was pull up the LCD plug, and put it back down. Put off buying a new laptop (for a while I hope)

    thanks,

    Daniel

  73. I HAVE COMPAQ 7010 LAPTOP.FEW DAYS AGO SOME WATER WAS DROPPED ON IT ACCIDENTLY STILL IT REMAIN IN WORKING CONDITION AFTER SOME TIME ITS DISPLAY GONE(DIM)BUT OTHER FUNCTIONS WERE WORKING PROPERLY.WHAT SHOULD I DO?

  74. VARUN,

    FEW DAYS AGO SOME WATER WAS DROPPED ON IT…AFTER SOME TIME ITS DISPLAY GONE(DIM)

    With water damage anything could be wrong. It’s necessary to open up the laptop and take a look under the keyboard to find out if water got on the motherboard.

  75. I have a Compaq N610c Evo laptop and everytime i try to reboot it
    ,it comes out saying (Fixed disk Paremeter or Bios error).
    Is there any solution to this problem or how can i reset the bios on my laptop?

    Please help!
    Thanx alot.

  76. I have a cheap presarioc500 that I need to clean. I have not been able to get any manual that shows disassembly. The back of my notebook seems to still be attached by the fan. I have removed all the screws I can find. I have not been able to find a clip or anything to releases it. I have keys that were not working so I removed the keys only to find a lot of crap.

  77. Can anyone tell me where the BIOS battery is located inside my Compaq Evo N110 laptop computer? What does it look like? Is it a 2032 battery? Appreciate any help. Thanks. Ed

  78. Kathy Edson

    My laptop, when it turns on it says “The file header checksum does not match the computed check” also the code 0X00000007F comes up also. What does this mean. Because I am unable to get on my computer. Please let me know, so I can fix it. Thanks

    Kathy Edson

  79. Kathy Edson,

    My laptop, when it turns on it says “The file header checksum does not match the computed check”

    Is the hard drive detected by the BIOS? Can you see the hard drive in the BIOS setup menu?
    Check solutions posted at Microsoft TechNet.
    They mention three different methods to fix this problem.

  80. nearly lost

    (to this site) thank you so much, you helped me fix a problem the shops said would be around $400 to fix… this site is awesome in directing you the exact place to look!!

  81. A K SINGHI

    I want to change my Cd drive of laptop make hp compaq 7010, please advice

  82. I have problem with my laptop Evo N1020v. I am writing again. When I try to turn the laptop on, it doesn’t boot up but power led is on. Screen is black. I noticed that when my processor isn’t in socket and I try to turn on laptop, it of course doesn’t boot up but all the two fans spin out. When the processor is in the socket the two fans don’t spin out. Maybe it’s useful information? Some time ago my laptop boot up after many times of trying to turn it on. But now even acces many times don’t help.

  83. cj2600

    Tomek,
    I would check the memory module first. Could be just bad RAM. Try replacing memory, install another known good module. Try reseating memory, maybe it’s not making good contact with the slot.

  84. I need to know how you would take the keyboard off of a Compaq Presario C500. I tried looking at the service manual, but there wasn’t one.

  85. Thanks for having the PDF repair (read that replacement) manual online. I have a Pavilion that overheats the power connector, and caused the pin to have an intermittant connection: Got a replacement on eBay for less than $10. Getting to it is a pain, but can be soldered onto the auxillary board. Thanks again. Bruce

  86. Great website with good resources. After reading some of the appropriate materials, I think I’ve narrowed down my laptop’s problem:

    I own an HP/Compaq nx9600. The machine has a very checkered past (already had to fix the power supply, heating system, broken “on” switch, etc), but it’s very nice when it works. Right now, I’m having a problem where when I try to turn the screen on, the screen remains blank, and the computer beeps twice quickly before resetting. I believed this had to do with system RAM – after resetting the RAM firmly, I can usually get it to start up and get to the desktop…however, after a minute or so, the screen goes blank, and I have to restart the machine (after which, the aforementioned beeping loop plays). Could there be something else wrong with the machine? Thanks so much.

  87. cj2600

    Joe,
    You are right, this could be memory related issue.
    I just looked at the laptop maintenance and service guide and it looks like you can access both memory slot from the bottom of the laptop, simply removing the memory door.
    How many modules you have installed?
    If you have only one module, try moving it into the empty slot. Test the laptop and find out if the problem is gone. Try replacing it with another working memory module.
    If you have two memory modules installed, test the laptop with each module separately. Test each module in each slot. Find out witch one is causing the problem.
    If the laptop works fine with both modules installed into the slot A, but freezes with both modules installed into the slot B, apparently you have a problem with the slot itself.
    If the laptop works fine with one module in both slots but freezes with the other module in both slots, apparently the second memory module is bad and has to be replaced.

  88. HEY.I HAVE A PRESARIO V5000.WELL I THINK SOMEONE DROPPED IT.NOW ITS LIKE I HAVE A SHORTAGE OR SOMETHING WHEN I TRUN THE POWER ON.THE SRCEEN LIKES TO FADE OUT AND I CANT DO ANYTHING.ALSO.MY FAN HAS STOPPED WORKING..IT WAS AT ONE POINT VERY LOUD.I WAS TOLD BY SOMEONE THAT THE HEATSINK COULD BE DIRTY.THINK I NEED TO REPLACE IT?

  89. when i switch on my laptop the power goes on and run perfect but my screen only goes on after a few atemps

  90. cj2600

    yagah,

    when i switch on my laptop the power goes on and run perfect but my screen only goes on after a few attempts

    After the screen turns on it works fine after that?
    How about video on the external monitor? The external video also needs a few attempts or it starts fine any time you turn on the laptop?

  91. Jack Conley

    Hello,
    Do you know the layout of the jack on the back of a Compaq 7400 laptop. I would like to take the laptop apart and rewire the square plug to accept a standard and easier to aquire round plug. The power supply is 120 AC stepped down to 18.2 volts DC @ 3.0 amps. Since the battery is already dead I am unable to determine which one of the pins is the neg, pos, etc. Any help would be appreciated. Thanks.
    Jack Conley

  92. Salan

    I managed to smash my LCD screen on my NX9420. So now I have to change it. Anyone knows a link that could help or maybe someone could mail me some advice?

  93. I own a compaq presario v2000. Lately I’ve noticed that my wireless internet is not working and I have no sound. If anyone can help me I would really appreciate it.

  94. jusaskin

    The instructions to retrieve the links to HP Maintenance and Service Guides lead to Reference, and Startup guides which are useless for disassembly instructions. I only find one reference to the M&S Guide on the whole site and the link given for that leads to nowhere. Am I mistaken or did HP stop offering the service guides. Much thanks anyways for your time and help.

  95. jusaskin

    SORRY! My preceding comment was hasty. Not all models have Maintenance and Service Guides offered (the two I was looking for didn’t). But… you can try another model which may offer it. Then after downloading it, compare the diagrams for similiarities with your model for disassembly. Close enough to do the job. I searched under my model # and turned up one bogus hit, but a general search (no model #) turned up quite a few to choose from. My model was a Pavillion ze1115. Yeah, I know, most of you already figured this out. Thanks again.

  96. Kalim tamari

    I have a hp Compac nx6110, I can not log on because the the key pay is not responding when I depress the ctrl,alt,delete keys can some one help please,

    Thaks,
    KT

  97. Khalid

    Thank you very much! I needed to replace the hinges, and i was looking for something that could help to open the computer. And this is what i needed!

  98. I have a HP Pavilion ZD8000 was working fine until I powered it up one evening and it went off by it’s self, and the power cord did not appear to be working (no light on the brick) so I bought a new brick and that does have the light on but the computer does not come on. The power light is on on the front of the computer and another light flashes 3 times when I push the power button to turn it on but nothing happens. Have any ideas?

    Mark

  99. Mark,

    The power light is on on the front of the computer and another light flashes 3 times when I push the power button to turn it on but nothing happens. Have any ideas?

    Did you try basic stuff like starting the laptop from AC when the battery is removed and then starting it without hard drive installed? Did you try reconnecting memory modules?
    You said the power light is on. Will it flicker if you wiggle the power plug inside the jack?

  100. joseph santos

    how do you fix connector problem between video card and laptop motherboard in compaq presario x1000 model. it works only when pressing on the video card area. i think the video card is okay.

  101. Joseph Santos,
    I doubt that you can do this kind of repair at home unless you have proper equipment and a lot of soldering experience.

    how do you fix connector problem between video card and laptop motherboard in compaq presario x1000 model. it works only when pressing on the video card area.

    Apparently one of the connectors (on motherboard or video card) has a cracked solder joint and has to be resolered. I’ve never done it myself because my soldering experience is limited to power jack replacement.

  102. i have a presario v1700. and its been having problems with the video. whenever i turn it on all i see is different colors or black with white lines. it seems as though the computer works fine its just that the lcd is having problems showing the display.

    im wondering if it had to do with dynamic link library being deleted. me and my brother were trying to free up memory on it since it only has 2gb on it and this took up most of the space and he deleted it than slowly the display started going out until you couldnt even get past the startup screen.

    ive been trying to see if it works with external monitor but i havent figured out exactly how that works. havent had too much experience with laptops before. but i dont need help with that. ill figure it out sometime.

  103. corey,

    whenever i turn it on all i see is different colors or black with white lines. it seems as though the computer works fine its just that the lcd is having problems showing the display.

    Can you see Compaq logo when you turn on the laptop? If your laptop has a screen like that right from the startup and you cannot see normal Compaq logo, your problem is not related to Windows, something else is going on.

    In order to narrow down the problem you’ll have to test external video.
    If both internal and external video have the same video problem, it could be bad video card.
    If this problem appears only on the internal screen but external video works fine, it could be bad LCD screen or video cable.

    If your laptop starts fine and you can see the Compaq logo, but video fails after Windows starts loading, it could be software issue. Try booting the laptop in Safe mode. Can you?

  104. no as soon as it starts i cant see anything. safe mode or anything else = no.

    ill try external monitor later today cause right now i dont have time.

    now what im thinking is that one of my younger brothers or sisters may have gotten a hold of it and screwed up the lcd somehow. maybe opened it too hard. stuff like that. and i can always just get a monitor for it anyway if external works.

  105. my laptop is restarting and shutdown contiuosly, pls whagt can i do to repair it, i need manual guide to repair it .

    thanks

  106. john,

    my laptop is restarting and shutdown continuously

    Could be memory related problem. Try reseating the memory module.
    If you have two modules installed, test the laptop with each one separately. It’s possible that one of the modules is bad.

  107. Most Nyirenda

    thanksou’re doing for evrything you’re doing for us.I have a problem with my LAPTOP HP pavilion ze2000,it fell down a month ago and form that time doesn’t start up I have tried to disassemble it and assemble it Back and even replace the proccesor still the shorting is there still It can’t work. please what can I DO?

  108. Scott Best

    Hi, I purchased a compaq nc6000 as is. My problem is when power is pushed the fan turns but then it quits, sometimes it comes on to password screen then runs about 30 secs and the screen goes to black leaving the power lights on like it is still on…other times the slightest touch on the right side of the keyboard it does the same thing…anybody have any clues? Thanks.

  109. Scott Best,

    My problem is when power is pushed the fan turns but then it quits, sometimes it comes on to password screen then runs about 30 secs and the screen goes to black leaving the power lights on like it is still on

    Could be memory problem.

    the slightest touch on the right side of the keyboard it does the same thing

    Try moving the memory module from one slot to another. It’s possible one of the memory slots is bad. When you touch the laptop, the memory module loses connection with the slot. Just a guess.

  110. Scott Best

    Thanks cj2600, I will try that.

  111. I have a Compaq Presario C502US laptop that won’t start. When I plug the a/c jack in, the red charge led flickers on and off rapidly. If I hit the power button, the power led flashes and so does one of the volume led’s next to it.

  112. Anyone have an idea what could be wrong with my 502us in the comment below? The flashes are in a definite pattern. The jack looked good and tested it w/an Ohm meter plugged in

  113. I have a hp pavilion ze5400 laptop and I took it apart to clean out the laptop an put it back together but the touch pad and the front lights don’t work any more. can you tell me how to fix it. Thank You

  114. Vincent,

    When I plug the a/c jack in, the red charge led flickers on and off rapidly. If I hit the power button, the power led flashes and so does one of the volume led’s next to it.

    1. Remove the battery and try turning it on from A/C. Could be bad battery.
    2. Try reseating the memory module. Try replacing memory with another known good module.
    3. Remove hard drive, DVD drive, battery and try starting the laptop from AC.

    If you still have the same problem most likely it’s bad motherboard.

  115. meka755,

    I took it apart to clean out the laptop an put it back together but the touch pad and the front lights don’t work any more.

    Could be bad connection between the touchpad/LED board cable and motherboard. Try reconnecting the cable.

  116. Luis Antonio

    i have a COMPAQ Evo N 1020v and i changed my internet from MOZZILA FIRFOX to INTERNET EXPLORER and since then i have problems with my sound i bearly can ear the sound in my computer has anything to do by changing my network.
    Can you help me with this problem what should i do.
    THANK YOU.

    P.S: WAITING FOR YOUR HELP.

  117. Luis Antonio,

    i changed my internet from MOZZILA FIRFOX to INTERNET EXPLORER and since then i have problems with my sound i bearly can ear the sound in my computer

    I’m not sure if your problem is related to installing Firefox. I use this browser on many different computers and never had a problem.
    Check all sound related settings, make sure the volume is turned on.

  118. Hey I need your advice on two totally bizarre issues that I’m having with two totally different laptops.

    The Toshiba Satellite M35X-S149 had a bad drive and only 256 mb memory. I upgraded the memory to specs and changed out the drive. I reloaded and the machine turned itself off 3 times during install. I finally got XP Pro back on there, along with offiice but never go to the stage for antivirus–and now it won’t turn on at all. I wondered if mabye a BIOS update/BIOS flash update would help–but now it won’t even come on. The power cord is funny, yet the port in back is very tight–NOT loose. I hate to pay a lot of money for the pro to solder it and then it turn out to NOT be worth it.

    Also, I have a Compaq nx9010 Business lappie and it’s totally insane. I added memory and hard drive–it’s not reading all the memory, plus it can’t find the hard drive. And it’s giving messagds I have never seen before.

    Holler at me when you can please Sir, I’d appreciate your advice.

    TIA,
    Sherry
    _____

  119. I have a HP Laptop, the Caps Lock Button keeps on blinking after booting up to Windows XP Professional. I cannot type any words properly due to keep on toggling between capital letter and small cap.

    Can anyone please help?

  120. I have a problem with my Presario F500. The screen keeps going off and on, if I move the top the screen light will come on but if I let go it turns off like as if it was closed. It is bugging the crap out of me since I can’t really do anything if I have to hold the screen to be able to see. I do know that its just the light but I need to know how to fix it or get it fixed.

  121. I have hp lap top model ze5185. I need to take the bottom off i have taking all the screws out and it still want come off i need to solder the ac connection back together

  122. I have an hp ZT1290, laptop. This unit worked fine until I replaced the hard drive. After the new HD was installed and configured, all MS updates installed, I shut it down and didn’t use it for a few weeks. Next time I booted it up, the screen was black, although I could see the screen by shining a light on it. I tryed these things with no luck:
    1) updated BIOS 2) updated drivers 3) ran a diagnostic from HP

    4) cleaned the cover switch 5) tried to toggle the screen

    6) hooked up an external monitor (worked fine) 7) replaced the display inverter, and checked the backlight bulb (OK)

    So, What the heck is wrong here? Any suggestions?

  123. Hello, I have a compaq presario M2241EA. When turned on the power light and ac cord light comes on but the computer will not start up. The caps lock and scroll (num lock) keys are both flashing.

    I have tried turning the laptop on with battery removed and also with the hdd removed but it is still the same. And I have tried placing the memory in the spare slot and also replaced the memory with a module from my mum’s v2000 but still the same.

    Thanks,
    Amy

  124. hello, my frnd did vomit on my laptop compaq presario v3060(thanks for stupid heavy drinking).immediate the screen goes off and now screen is not coming up but power is coming up with LED lights.i have opened the laptop and clean everything.even detach and attach the LCD cable but still nothing coming up on screen.
    my hardware guys said it is issue of Mother Board(System Board) which needs to be replaced and which is around $250. can anyone help me in this.

    i dont think so it damage the LCD, my view is issue with any display chip…..any suggestion?

    Thanks,
    Saffy

  125. Wow, this is one heck of a list!
    This will definitely help when I have some Compaq laptops to disassemble …

  126. Thank you so much for this! It helped a bunch and my computer is finally working again. 😀 Keep up the awesome work.

  127. Mwela Joseph

    How can I reset the password jumpers on a HP laptop dx6130

  128. I see two comments here asking about a blinking caps lock + num lock when a laptop won’t boot up.

    I have an HP L2000 Special Edition and I believe it will exhibit this behavior if the CPU socket is not locked or there is no CPU installed. It could also be a faulty CPU.

    For me, the lights blinked in sync at approx a 1 sec interval. Like an amateur I forgot to lock the CPU socket when I was replacing a CPU.

  129. i have a compaq presario 2100 and it keeps turning on and off every 5sec. if its the lcd cable i will have to take the lcd panel apart?

  130. HI there—I have a HP Pavillion that’s only 2 years old. When I try to turn it on, all the blue lights come on but nothing happens—screen is black. Any suggestions? Thank you!

  131. cj2600

    ron,

    i have a compaq presario 2100 and it keeps turning on and off every 5sec. if its the lcd cable i will have to take the lcd panel apart?

    Why do you think the problem is related to the LCD or cable? That could be memory related problem. Try replacing memory with a known good module. If you still experiencing the same problem, there is a chance that you have bad motherboard.

  132. cj2600

    Debi,

    HI there—I have a HP Pavillion that’s only 2 years old. When I try to turn it on, all the blue lights come on but nothing happens—screen is black. Any suggestions?

    Possibly bad RAM. Do you know if you have two RAM modules installed? Try removing them one by one and test the laptop with each RAM module separately. Will it work with one of the modules installed?

  133. James Carlson

    I had my monitor go black on me last night, and saw on your site that I could get the maintenance and service manual for my Compaq Presario C503WM Notebook PC (C500 Series) at the HP website, which would enable me to check and reset the cable, if that’s what it needed. Unfortunately, they don’t have one for the C500 Series (this is what they told me via chat). It’s a little difficult to try and explore the monitor assembly without some sort of schematic, so I’m a little stuck. I’m afraid if I wrestle my way through to the actual connectors of the monitor, I might break the hinges — I really neded some kind of assembly diagram. Any ideas?

  134. cj2600

    James Carlson,

    Steps for taking apart the display assembly are similar across many different makes and brands.

  135. I have a compaq armada 7400 that will not charge the battery. Purchased new battery, but it just ran down the battery and did not recharge. Is there a way to test to see if the charger section is working, or pin out diagram? Should I just purchase an outboard charger?

  136. cj2600,

    please answer posting number 129; I encountered the same problem as Amy and I’d like to know the repair procedures…

  137. DAVID TATE

    I have a hp notebook xh136 mom gave me.I was trying find out how to get some instruction.I can do the basic.Just would like to find out what else I can do.Thanks David

  138. cj2600

    David Tate,

    I have a hp notebook xh136 mom gave me.I was trying find out how to get some instruction.I can do the basic.Just would like to find out what else I can do.

    Follow this link. You’ll find manuals and guides for your notebook.

  139. Ron Kelly

    I have an HP L2000 that I got from eBay. It too had the blinking caps light and scroll light and would not start. The CPU had not been locked and was loose. Lock it in place and away we go.

  140. Cyril Crook

    I have a R4000 that will only run on battery, not on AC. The AC charge light on the PC doesn’t light and it doesn’t charge the battery. The AC charger is good, I had access to another charger. Have done a hard reset. Redone the ACPI. What’s next??

  141. please help me .
    my laptop is not getting on, as I connect my power adapter and then it shows light on power button and light off for hdd, and display is totally dead and after sometime when we press any kay then It itself gets off.
    please help or advice me to so
    Compaq presario V6000

  142. elaine

    please help me..
    my laptop is COMPAQ PRESARIO X1000.
    my problem is about my battery and charger..
    i have charged it for an hour and after i checed it, it still says 1% so i tried to unplug it on our outlet. And it so happened that my computer has turned off automatically. so i plugged the charger again and turned my laptop on. please help me solve this problem.

  143. My co-worker’s daughter changed the bios in her Compaq Evo N-400c and promptly forgot it. I was asked me for help. I have tried almost everything to reset the CMOS. I removed the main and RTC batteries, took out the hard drive and let it set overnight. I plugged it back in without the main battery (per the Compaq repair manual) and it still asks me for a “Power-on Password.” How is this even possible? Is there some capacitor I have to drain the power from? I have checked the system board and cannot not find any jumpers. It’s not my computer, but it is still frustrating. Any suggestions?

  144. cj2600

    Andy,

    My co-worker’s daughter changed the bios in her Compaq Evo N-400c and promptly forgot it. I was asked me for help. I have tried almost everything to reset the CMOS. I removed the main and RTC batteries, took out the hard drive and let it set overnight. I plugged it back in without the main battery (per the Compaq repair manual) and it still asks me for a “Power-on Password.” How is this even possible?

    On some laptops you cannot remove the BIOS password by removing the main and RTC batteries, apparently that’s the case with your Compaq laptop. I afraid you’ll have to replace the motherboard and ship it for service to HP.

  145. cj2600

    elaine,

    i have charged it for an hour and after i checed it, it still says 1% so i tried to unplug it on our outlet. And it so happened that my computer has turned off automatically.

    Most likely you have a bad battery and it has to be replaced.

  146. Evo 400 reply: Thanks for your prompt response. I am going to leave the batteries out of the Compaq for a few more days just to see. I read somewhere after making the post that the password may be on an EPROM that is erasable by UV light, so I left it out in the burning South Florida sun for 6 hours. You never know. If nothing else works, then the EVO is getting shipped to the trash heap. I will keep you informed. Thanks again.

  147. Compaq Evo N-400c: I waited over a full week, finally put it back togeter, replaced the RTC battery battery, turned it on and pow.
    Asked me for the power-on password. Anybody need EVO 400 salvage parts? It is not worth replacing the mainboard.

    You have a great web site. Keep it up.

  148. Excessium

    I have a Compaq Evo N1000v, which my grandfather gave me. It has a locked bios and unfortunately he does not have the password. How can i reset the bios?, Can i take out the rtc battery and let it sit for a few days to reset it? Or is there another procedure. Thanks

  149. why I can not get the internet working on my presario 1500,it says that I am connected. But thats it.

  150. Ronald,

    why I can not get the internet working on my presario 1500,it says that I am connected. But thats it.

    There is no simple answer to this question. Could be just wrong settings. Are you running Windows XP?
    Try this:
    Start>>right click on My Network Places (in the right pane)>>Properties
    Right click on your network connection (wired or wireless)>>Properties>>Highlight Internet Protocol (TCP/IP) and click on properties button

    In the General tab you’ll see settings for IP address. This settings have to match your router/modem.
    In most cases it should be set to Obtain an IP address automatically. Is it?

  151. hi, there are a few comments regarding broken screens but no answer- hopefully someone can help me here-

    i have a compaq presario c300. only half the screen works the lower half is just dead pixels, but if you press the bottom right hand corner of the screen the lower half works (just while pressure is applied). this makes me think there is a connection problem so i have disassembled the whole laptop (thank you for directing me to instructions!) but dont know what to look for (was hoping to find a trapped wire or something, but everything seems in order!)

    anyone any ideas? cheers

  152. I have been having issues getting my Compaq F730 started. Over the last couple months, I’ve had about 5 times where the computer will not boot. After pressing the power button this happens:
    – all indicator lights on the front light up
    – nothing is displayed on the screen, and the HD light never goes on again
    – fan runs
    – if DVD is in drive, this spins up
    – after ~20s the laptop shuts off and restarts.

    To troubleshoot the problem, I’ve tried this:
    – take out HD and put in another computer. The other computer read the HD fine.
    – boot with a linux or windows boot disk (it started once with the linux boot disk, but I think this was a fluke as subsequent restart problems were not fixed by this).
    – start with battery only
    – start with battery out (AC connector was lit up, so I don’t think it is a broken connector problem)
    – pressing F10, esc, del after powering on. Nothing shows on the screen
    – shut the lid and reopen it. (If I remember correctly, sometimes the light on the front went off after doing this, but this may have been when I was testing without the battery in).
    – hit the computer
    – reseated the RAM chips

    I’ve gotten out of the restart mode before but it seems to be random.

  153. Moose,

    I have been having issues getting my Compaq F730 started. Over the last couple months, I’ve had about 5 times where the computer will not boot.

    It’s possible that one of the memory modules is bad. Try removing RAM modules one by one. Test the laptop with each module separately. Try installing RAM modules into different slots.

  154. tom kb,

    only half the screen works the lower half is just dead pixels, but if you press the bottom right hand corner of the screen the lower half works (just while pressure is applied). this makes me think there is a connection problem so i have disassembled the whole laptop (thank you for directing me to instructions!) but dont know what to look for (was hoping to find a trapped wire or something, but everything seems in order!)

    anyone any ideas?

    Your description sounds like a problem with the LCD screen, not the cable or wire. You’ll have to replace the screen.

  155. I have a Compaq Presario V5000. The screen is black when turned on. (I know the screen itself is good.) My computer works fine when hooked up to an external monitor. I’ve tried locating a loose connection to the screen by disassembling my laptop. Everything seems to be connecting fine. Can anyone help? Is there an easy way to toggle between external monitor and the laptop screen?

  156. Got a compaq nx9020 (can’t remember xact mdl. its @ school)
    It won’t boot off my multi card reader (each memory card is a separate drive), but I have checked and it will boot off a memory stick. Any ideas?

  157. quote david:
    I have a Compaq Presario V5000. The screen is black when
    turned on. (I know the screen itself is good.) My computer
    works fine when hooked up to an external monitor. I’ve tried
    locating a loose connection to the screen by disassembling my
    laptop. Everything seems to be connecting fine. Can anyone
    help? Is there an easy way to toggle between external monitor
    and the laptop screen?

    David,
    Look at the keyboard. there should be a little screen thingy on one of the F keys (usually f3,f4,f5) Hold down Fn and press that key a few times until you have somthing on both monitors.
    Alfie

  158. @David The only way i know how is to go to your display properties and click settings then advanced, then click on graphics properties under Intel Graphics Media Accelerator driver. If you have an external monitor there should be two options under display devices. Select the notebook option.

  159. Donald A Zaron

    Can the BIOS chip on a Compaq Presario F500 notebook computer replaced. If so please tell me where it is or how to get to it.
    Thanks, Don Zaron

  160. I have a dell inspiron 1100 and it has the windows xp home edition on it and after the normal screen where there is that bar then 3 smaller green bars go through it it always says that the image w7dap32.d77 is possibly corrupt, and that the header checksum does not match the computed checksum and just to add this has been happening for the last year or so and I don’t know what to do… I NEED VERY X-TREME HELP >=O

  161. ValerieH

    Please help. I have an HP Pavillion dv6835nr entertainment center laptop and the jack is loose. HP told me it was the adapter and i paid for a new adapter and still have the same issue. HP disregarded my telling them the jack feels loose and talked me into buying the adapter however I am having the same issues. Please tell me how to fix this without having to send HP my laptop because I am to the point of not trusting them anymore after the waste of money on the second adapter. Thanks.

  162. rojein

    thanks. i’ve got the manual ,it’s helpfull.

  163. ValerieH,

    I have an HP Pavillion dv6835nr entertainment center laptop and the jack is loose. HP told me it was the adapter and i paid for a new adapter and still have the same issue. HP disregarded my telling them the jack feels loose and talked me into buying the adapter however I am having the same issues. Please tell me how to fix this without having to send HP my laptop because I am to the point of not trusting them anymore after the waste of money on the second adapter.

    The power jack is soldered to the motherboard.
    It’s necessary to disassemble the laptop, remove the motherboard and replace the DC jack with a new one.
    I explained how to replaced laptop jacks in this post:
    http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/
    It’s not easy and requires some soldering skills.
    If you don’t know how to solder, I would suggest taking your laptop to a local repair shop.
    If you send your laptop to HP, they will replace the whole motherboard and charge you tons of money.

  164. niraj bilaimare

    my laptop screen become white whenever i try to on it.
    some tome it on properly but if some one touch it then it also become white .
    so please help i suffer from this problem from last 6 month.
    if solution sent this in my email id.

  165. niraj bilaimare,

    my laptop screen become white whenever i try to on it.
    some tome it on properly but if some one touch it then it also become white .

    This could be bad connection between the video cable and LCD screen.
    Sometimes reconnecting the video cable on the back of the screen fixes the problem.
    Check out this guide.
    http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/

    Laptop has white screen

  166. PLEASE HELP URGENT

    I HAVE A HP DV9000
    ONE DAY I POWERED ON AND SUDDENLY GOT OFF.
    NOW THERE IS NO POWER LED, NO QUICKPLAY LEDS NOTHING
    JUST WHEN CONNECTING THE JACK OF AC I SAW THE CIRCLE LED AROUND THE JACK
    BUT THE LAPTOP DOESNT MAKE ANY SOUND ANY LIGHT, NOTHING

    WHAT COULD BE THE SOLUTION??
    PLEASE HELP

    THNKS

  167. Compaq cq60 215 dx
    Fell and won’t stay on seems fan is not working.
    Screen turns on but windows won’t load.I’m able to
    F9 to phenoixBios but can’t load windows vista. Besides that
    I never made start updvd . Please help

  168. @ Eddy,

    It’s possible the hard drive was damaged.
    I would test the hard drive first.

  169. Bryan Terman

    I have a hp dv6913rs i shut it down went to start it a week later and it will come up to a hp screen and it has f key does this on the bottom of the screen have tried all of them done the hard reset sum time it will let me in the bois other time it will not it will get line on the screen hp things its the mother board is there a test for this please help thanks

  170. @ Bryan Terman,

    I have a hp dv6913rs i shut it down went to start it a week later and it will come up to a hp screen and it has f key does this on the bottom of the screen have tried all of them done the hard reset sum time it will let me in the bois other time

    Try removing memory modules and test the laptop with each module separately. It’s possible that one of the modules is going bad. Just a guess.

    it will get line on the screen hp things its the mother board is there a test for this please

    Just one line or many vertical lines? If you get multiple vertical lines running though HP logo, this could be motherboard failure.

  171. I have a Compaq Presario V3500. Few months ago i can’t turn on my laptop. But went i plug-in the battery charger, there is a light turned on (it is look normal when battery charger is pluged and switch on). But i still can’t turn on my laptop. When i bring it to computer service centre, they told me the motherboard was spoilt and need to change. But i refused to change. Now for your information, after some months, when i try luck to turn on the laptop, suddenly the laptop turn on. Everything going as normal. The system is okay. But few days later until now, my laptop is doing the same problem. It cannot turn on. Please help me to solve this.

  172. @ Maran,

    after some months, when i try luck to turn on the laptop, suddenly the laptop turn on. Everything going as normal. The system is okay. But few days later until now, my laptop is doing the same problem. It cannot turn on. Please help me to solve this.

    If the laptop starts intermittently like that, it could be one of the following:
    1. Failed memory module.
    2. Bad connection between the memory module and motherboard.
    3. Failed motherboard.

    Try reseating both memory modules. Test the laptop with each memory module separately.

  173. marius

    I have a compaq presario 2500. I disassembled it and did organised the srews in a proper way ……I thought! I did download the service manual for this presario, but the pictures are not detailed enough and my memory ( braincells ) is not that young anymore to get it together again. I would like to find a video or photos with more detail so i could see the proper places for parts better then is possible with the pictures from the service manual.
    I googled for it many times, but can`t find the right video for this model.

  174. If anyone is looking for the Compaq CQ60-615DX maintenance and service guide I found it here http://h10032.www1.hp.com/ctg/Manual/c02985882.pdf

  175. dwayne

    When I turn power button on the little lighting bolt light comes on but computer does not turn on is it in hibernaction of some kind how u fix it

  176. hello i have a problem with my Compaq cq10 mini, seems fan is not working,or sometimes work ……Screen turns on but windows won’t load. it stays on the logo i press f9 to boot options or f10 for amibios but nothing happen it can’t load to windows . Besides thatI dont have a DVD rom Please help.

  177. AcctNine

    Hi,
    Could you please upload the manual for HP Mini 2133 and the detailed procedure for re-assembling the laptop after deassembling for novice users (as there are numerous steps involved when disassembling)?
    Thanks in advance.
    Thank you
    Thank you.

  178. @ AcctNine,

    Could you please upload the manual for HP Mini 2133 and the detailed procedure for re-assembling the laptop after deassembling

    Here’s the service manual for HP Mini 2133.

  179. i have a laptop hp 2000.it has a power problem which is not charging my battery but indicates as plugin,charging.and it does not work by directly plugin ,i am charging in other hp and working with my laptop.So what may be the problem give me your advice .

  180. chedders

    my hp notebook battery went bad so I but a new 1 of 4k it’s shows charger plug in but not charging.. not only that, the lcd power light comes up after been short down & it stays on how can I fix this?

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