Question about HP Pavilion dv9000z Notebook

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HP DV 9000 bad motherboard_will not power up.

I have an HP DV 9000 and I do know for a fact that the motherboard needs to be replaced. I have the issue where it will try to power up briefly but then blinks off and tries to power up again then blinks off. It will repeat this cycle but never power up.
I have found the exact motherboard I need to replace the one I have but there is no guarantee that the problem will not come back since all the motherboards of that particular model had the same problem. I'm wondering if there is another motherboard that can be used instead of going with the exact motherboard. Is there a way to cross reference and perhaps use a different motherboard? Thanks for any insight.

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  • Barrett Canning Nov 16, 2009

    Followed the steps you described today and am currently typing this response with my fixed laptop. Thanks for clear easy to follow advice.



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It is fixable without having to replace the motherboard...
I repair these on a weekly basis, It's a common issue with All DV9000 and DV6000 Series Laptops...
Your Issue Is The GPU/Graphics Chip, The Chips have overstressed due to Overheating..
The Fix is to Reflow the Graphics Chip Back Down To The Motherboard..
Reflowing is the heating of the graphics chip.. either by infrared or by a heat gun.. The chip needs to be weighted.. Use 8 Quarters, place the Quarters on top of the center of the chip, Cover any plastic plugs on the motherboard, Cover the CPU, Cover the RAM area.. Use A Heat Gun, set it to Low.. Hold it 6 inches from the chip, Go in slow circles around the stack of quarters-pointing the heat gun at an angle towards the edge of the graphics chip.. very slowly move the heat gun closer, NO CLOSER THAN 2 Inches away!! then pull it back to 6 inches away after about 30 seconds (moving in circles around the chip the whole time)..
This whole Reflow Process will take aprox. 2 minutes..DO NOT OVERHEAT the chip, the chip needs to get hot enough to melt the solder balls on the underside of the chip.. 2 minute max on the heat gun will do fine.. Leave the stack of quarters on the chip for 5 more minutes after shutting off the heat gun... This will allow the chip to safely cool-without cooling too quick... Then make sure you have a good thermal pad between the chip and the heatsink/fan assembly... Reassemble and power on..

Posted on Nov 15, 2009

Testimonial: "Great advice. I'll be sure to try this. Thank you."


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Don't forget to rate this answer if it helps.

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