hard drive, motherboard, or other?

Hewlett-packard / Pavilion dv9008nr
August 9, 2010 at 13:16:37
Specs: Windows XP
last night i turned on the laptop and it suddenly wouldn't come on. the lights lit blue... screen remained black. the cd drive turns but no other noises come from the computer. it doesn't sound like it's booting up or the fan is coming on or anything - just quiet other than the cd drive turning a few times. i plugged another monitor into it, but as i figured - nothing. no spills, laptop barely moves - literally from the end table to lap, so i doubt anything is loose. i figure it's either the hard drive or the motherboard but i'm not sure how to figure out which it is. i assume these are parts i could purchase and replace as i would a desktop computer. it's out of warranty - aren't they always?! thanks for any help!

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August 9, 2010 at 15:42:04
Replacing laptop parts is not easily done.

The motherboard is very expensive.

It is probably not the hard drive. You don't need a hard drive to POST.

When connecting an external display to a laptop you may need to use certain keystrokes to enable the external display. Consult your manual.

Your GPU (video) chip could be defective. There were many nvidia GPU series that were determined to defective. Look at the link below.


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August 9, 2010 at 17:35:26
thank you - really good information. one question though. if it were a video chip, wouldn't i have heard the computer booting up? the computer made a very low hum... no fan noise, no booting up sound. the cd rom did turn a few times, but that was that. the lights stayed lit, but that was all. nothing appeared on the screen and it gave no indication that it was booting in the least. i called one repair shop and the guy told me that they get about one of those in a month. he said the dv9000 series has a known defective motherboard problem. interestingly, we sent the computer in after it was first purchased to fix an unrelated problem and HP contacted us to say that the motherboard needed to be replaced. we told him that it had been working when we sent it in and we weren't paying to fix it. we heard nothing after that and the computer arrived working fine. that was about a year and a half or so ago. very odd. it seems like some sort of cover up. hp shoudn't leave its customers hung out to dry on this.

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August 9, 2010 at 17:43:53
If you normally heard one beep and now you don't then you could be right.

Tearing into a laptop isn't easy.

Were you booting with a charged battery and AC both connected?

The GPU issue has resulted in some class action lawsuits.

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August 9, 2010 at 17:49:37
i'm not sure how i was booting up last night, but today i tried it with and w/o the battery attached. hp deserves lawsuits. these parts cost them hardly anything and people pay extra for the hp brand. hey, thanks so much for taking the time to inform me on this. crazy - who would've thought you'd have these problems buying a good well known brand of computer.

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August 9, 2010 at 17:55:00
IMO, HP is the worst of the well known OEM vendors. Asus, Toshiba, Sony and IBM make the best laptops, IMO.

HP has lousy tech support, IMO.

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