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HP Pavillion DV6700 will not start, no BIOS screen just black


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#1 Arfer

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Posted 18 January 2013 - 05:33 AM

I powered down the machine yesterday (Shut Down) and now this morning the computer will not boot.
When I try to boot the machine the BIOS screen does not appear, the HD light flickers on but then stays off. All other lights on the machine are on as normal. The fan kicks in within 30 seconds and sounds like it's running at maximum revs.
I did a hard reset and reseated the HD and the RAM and replaced the RTC battery without fixing the issue.
I will disassemble the unit and make sure the fan is not clogged, in the meantime does anyone have any thoughts ?
TIA
Arfer

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#2 SnowmansN1pples

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Posted 22 January 2013 - 05:09 PM

Arfer, it sounds like the video card is completely gone. I know this series of laptop extremely well and I'm willing to bet you have the nvidia GeForce. These cards are extremely faulty, they run around 190F under no stressful load. Now put it under load and if it hasn't been cleaned it sores past 225F. Thats hot enough to have all the solder points of the GPU turn back to liquid and the GPU is no longer in contact with the motherboard. I owned the Presario V3000 which had the same problem. You would have to replace the motherboard to have it going, and you don't know if your getting another faulty one so I would write it off. Sorry for the bad news, I hope the rest of your day goes better.
-Rob

#3 Arfer

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Posted 23 January 2013 - 04:55 AM

Arfer, it sounds like the video card is completely gone. I know this series of laptop extremely well and I'm willing to bet you have the nvidia GeForce. These cards are extremely faulty, they run around 190F under no stressful load. Now put it under load and if it hasn't been cleaned it sores past 225F. Thats hot enough to have all the solder points of the GPU turn back to liquid and the GPU is no longer in contact with the motherboard. I owned the Presario V3000 which had the same problem. You would have to replace the motherboard to have it going, and you don't know if your getting another faulty one so I would write it off. Sorry for the bad news, I hope the rest of your day goes better.
-Rob

Thanks for the reply Rob. I have done some more research and your comments re GPU are spot on. Bad news this end!! Thanks anyway

#4 Feril_Android

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Posted 05 February 2013 - 01:38 PM

I agree with snowman... it might be worth getting it re-balled professionally..just make sure the outfit that does it uses leaded solder. But it may not be cost effective..Good Luck




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