HP Pavilion Dv6000 black screen on startup

aguess
aguess used Ask the Experts™
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When i start my laptop, i get black screen, HD indicator light is not blinking/turning on, (HD was bought two months ago). If HD doesn't work, why don't i see at least BIOS on the screen? have Win XP home premium installed. Thank you guys!
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Specialist 1
Commented:
If you've tried to solve your issues via Grant's article, it is most likely that you are inflicted by HP's DV series notebook BGA/Video chipset getting too hot and the solder work or the way the chip is set, won't make good contact anymore....
It sounds like your machine may be one of the HP's that has been plagued to have issues with the BGA chip.
Here's some youtube videos with similar if not same problem:
http://www.youtube.com/watch?v=JEpnqhRYGLw
http://www.youtube.com/watch?v=3MGvJCMQFis
http://www.youtube.com/watch?v=w45tZPVcj4c

Those videos show you how to fix the problem.  It's not for the faint of heart...and definitely some of the fixes are not always 100%.  Especially if all you do is heat it back up and the chip goes back into proper place...but you don't CHANGE anything (adding a thin piece of copper between the chip/heatsink) etc...then what will happen, is again once it heats up...it will loosen up over time again, and do the same thing.

Here's a few more threads, it plagues more than just the DV6000 series laptops.  Also I'll tell you that some other laptops, even Toshiba, or Gateway or Dell laptops, we've done reflow fixes for, and resolves similar if not the same issues as what you describe as well.

http://h30434.www3.hp.com/t5/Other-Notebook-PC-questions/HP-dv9000-start-up-issues/td-p/127189
http://en.kioskea.net/forum/affich-35186-hp-pavillion-dv6000-graphic-card-problem
http://forum.notebookreview.com/hp-compaq/296030-dv6000-screen-wont-turn.html

And plenty more where those came from.
Google search HP DV6000 and BGA fix or reflow and you'll come up with repairs/fixes for this issue.  
WakeupSpecialist 1

Commented:
Oh...and to answer, the reason why your Hard drive is not working is that the system hasn't gone far enough to even get to the Hard drive yet.
You don't need the hard drive to power up the system.
The system should go thru the post test and display at least the bios screen.
As long as the motherboard, cpu, and ram are fine and of course power/battery is supplied and works...it should turn on....unless their's a problem with one or more of those devices.

Top Expert 2013

Commented:
i hope this helps you :
here my laptop troubleshooting guide :
-remove all external devices
- if no display - test with an external monitor
- test if it runs from battery alone, or from AC alone
- test also with a known good battery !
- remove battery and AC adaptor, hold power button for 20 sec, connect AC and reboot --> any display ? if NO -->
- disconnect all disk and cd drives, battery , and other cards and peripherals, leave only 1 ram stick
- boot -->any display ?
- if NO remove all ram and reboot --> if NO beeps, mobo or cpu bad ; if it beeps, replace ram stick
-if you can access the bios battery, remove the battery, AC, and bios battery for a minute to reset the bios
or test it, it should read 3 V
*** you can test the disk on another pc, if you like !

for troubleshooting the display (LCD) problems : http://www.lcdparts.net/howto/symptom.aspx

Author

Commented:
Thank you guys for the replies. So, i connected external monitor and nothing happened,still black screen + laptop keeps rebooting itself about every 30 sec. Is that 100% video card problem then? What do you think and what are my next steps for troubleshooting? Thanks in advance!
WakeupSpecialist 1

Commented:
I believe it is the BGA/Video chipset issue.  Not necessarily a "Video Card" problem.  As the laptop's Video card is just a chip that is affixed to the motherboard.  
My suggestion is to either get the motherboard replaced or try some of the fixes in my post from earlier.
Not an easy fix for sure.  But the issue you face is that if you replace the board with a new one, you may have the same problems again with the BGA/video chipset doing the same thing with the new board.
And if you plan to replace the board anyway, you might try one of the fixes first...if it works, then you won't even need to replace the board.  
Top Expert 2013

Commented:
that is a good way to handle it - if you have to replace the board, nothing is lost in trying the reflow
and maybe a new laptop is cheaper than the replacement board..
WakeupSpecialist 1

Commented:
Yup!  Just depends on how you want to handle it...and where you acquire the new board...
Ebay can sometimes be a good price point.  But of course you could be inheriting someone else's problem.  But again I can't say this too many times, just getting a new board, the problem could reoccur.  Unless a fix has been done to the board to resolve the BGA/Video chipset problem.

Author

Commented:
Thank you! I did the same as those guys did in the video:) that was long fixing process but worked:)
WakeupSpecialist 1

Commented:
NICE!!!  Glad it worked for you!  wooohooo! ANDDDD I am glad you had the serious know how to do the process!
You are welcome!
Done quite a few myself...And it can be a grueling process!

And if you can, for future reference, let us know which video you used the most?  I mean I am sure you looked at all of them and probably took most of the information from one.  Anyway, I'm always curious to see how or what worked!
WakeupSpecialist 1

Commented:
Thanks for responding! good to know which one helped!

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