HP Pavilion DV6000 no power

[syncom564]

good day sir, thanks for this very informative blog, i would like to ask from you this answer for my problem, i have a problem with this laptop, there is no power only an indicator a blue led lamp indicates the power but there is no power comes in in the main board... it was suddenly shut off after an hour of operation or using, after that there in no indications of start up. charger or adopter is ok, new unit, memory etc. only Mboard doesn't have power, thanks hope you could suggest any tips,

 

[SANDEEP ANAND]

good day sir, thanks for this very informative blog, i would like to ask from you this answer for my problem, i have a problem with this laptop, there is no power only an indicator a blue led lamp indicates the power but there is no power comes in in the main board... it was suddenly shut off after an hour of operation or using, after that there in no indications of start up. charger or adopter is ok, new unit, memory etc. only Mboard doesn't have power, thanks hope you could suggest any tips,

TRY WITH THIS LINK, HOPE IT WILL HELPFUL FOR YOU =www.lqv77.com= REGARDS

 

[Trion]

In this series of laptops, the Nvidia GPU fails due to overheating (bad thermal design). It needs a reflow of the chip and a small modification - replacing the thermal pad between GPU and heatsink with a copper piece 2mm thick. Also good quality thermal paste is to be used (like Arctic silver). Apply this paste (small quantity) on the GPU and place the copper piece and on the copper piece put some more thermal paste and fix the heatsink over it. This should get your laptop working 90% chances; unless the GPU has got burnt; which is rare.

Below is a link that shows how to repair DV 2000 laptops procedure is similar for DV 6000- the copper coin will help transfer heat better. But make sure to do the reflow first. This is best done on an infra red rework station, but many are doing it with hot air guns too. For best results the epoxy glue around the GPU needs to be removed first. Else the solder balls may not make good contact. Also use a good lead free solder flux for the reflow.
The bios update by HP can also help. Another thing that helps the laptop run cooler is to use a laptop cooling pad.
I get 2-5 laptops like these for repair per week.

CE's Geekbook: how to fix dv2000 No Video, dv2000 Penny Fix, BGA Re-Flow

Hope this helps!



---------- Post added at 11:48 ---------- Previous post was at 11:27 ----------

This link shows a heat gun reflow.I don't really recommend this but it can help too. YouTube - Repairing HP Pavilion Notebook's nVidia GPU issue >One thing you should NOT do is run the laptop without a heatsink on even for a few seconds as this can damage the GPU and processor. He's done it in the video but this is very dangerous and like playing Russian roulette with the laptop. As you can see there are several videos on You-tube for fixing the DV2000/6000/9000 laptop series. But they don't give all the steps together. one has to first remove the glue around the GPU, then reflow it, put a copper piece betweent he GPU and heatsink and if needed, use a BIOS update. For some DV2000 series laptops as the air intake vent is very small, additional holes may need to be drilled around the vent.

 

[Trion]

The best method to fix this problem is to either reflow the Chip with an IR BGA rework station or reball the chip with lead based solder if reflows don't work (provided you're expert in BGA reballing). If this doesn't work (5-10% cases) a fresh GPU may need to be installed. I also need to warn that repeated reflows can damage the board. After the reflow, use the copper pieces and if after using the laptop for 30 mins to an hour (no 3D gaming) if the temp says under 65 degress centigrade, your laptop is safe. If it crosses 75 degrees centigrade the volcano GPU you got probably won't last long. On some boards its been found that the core voltage IC supplying the GPU is giving higher than normal voltage. This can cause the chip to over heat and needs to be changed if needed. Also as a last resort the BIOS update from HP that keeps the fan running can be used. A Laptop cooling pad in addition to the above methods can also help.
All this is needed due to bad thermal design by NVIDIA for these series of GPUs; they recommended too small heatsinks and inadequate cooling. This coupled with lead free solder is a disaster to users.
I don't recommend home users fixing their own laptops in this particular case unless they're in some remote corner of the world where there are no skilled BGA rework specialists. They can use the BIOS update, cooling pad, etc. But BGA work needs skill and experience. Only if there is no alternative should you attempt it yourself, though chances of long term success are low for the inexperienced.