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BRSouthwest
Posts
1
Registration date
Wednesday December 23, 2015
Status
Member
Last seen
December 26, 2015
Dec 26, 2015 at 05:41 PM
Dec 26, 2015 at 05:41 PM
I've narrowed down many auto shutoffs and most boots with no HDD activity to fractured solder joints between motherboard & GPU. Since video is tested early in POST, testing stops when GPU fails. As most GPUs are soldered to the MOB in laptops, reflowing the solder by heating up the motherboard to approx 450 F is the only repair alternative. I recommend searchhing EBay for sellers who reflow, either as a service or a MOB tradein. I also replace the thermal foam pad between heatsink and GPU with a 'copper shim'. Good luck.
Dec 26, 2015 at 05:46 PM
Sounds like very good advice.
Feb 24, 2017 at 08:59 AM