Magic smoke from GPU, can laptop still be saved?

[Chetan1991]

I did a real stupid thing tonight. I was applying thermal paste on my laptop's cpu and GPU and the old thermal pad on GPU crumbled, so I removed it completely. I applied a thick layer of paste on it and tightened the heat sink's screws on it with some extra force. I even checked with an extra bright light light to see there was no gap left between the GPU and heatsink.

When I turned on the laptop, a garbled screen came on for a few and then vanished. I immediately pulled the power cord when I smelled smoke, but obviously it was too late.

I'll buy thermal pads tommorow and try again. Do you think GPU might have survived? Most CPUs and gpus have been coming with overheating protection for more than a decade now, so is there any chance?

The GPU was soldered on the board, so in case it has burned up, is there any way I can still run the laptop?

 

[topgear]

unless and until you attempt to power on the laptop again it's hard to tell. So go on, get thermal pad and don't apply too much TiM [ remove the previously appllied TiM completely before ]. Try to power on the laptop and see what happens.

 

[Chetan1991]

It seems an N mosfet close to tue gpu is also burnt. Its fairchild semi.s fds 6298. Will it be safe to turn on the the laptop with it burnt?

 

[topgear]

it it looks really bad better repair it first.

 

[madanforever4u]

chetan now how is your laptop. how you trouble shooted this problem

 

[Chetan1991]

Here an update if anyone cares to read.

I ordered the mosfet from kitsnspares and had it replace the burnt one by a mobile repair shop.

Made a copper pad and put it between the GPU and heat sink as the thermal pads I bought for Rs 350 turned out to be crap and temps was reaching 100 deg., and now the laptop's working fine. Even while playing Civ. V for hours GPU temp doesn't cross 75 deg.

 

[kkn13]

how much did you pay
I had a similar problem few months ago(no smoke but overheating)
paid 750 bucks for a custom heatsink and fan(13000rpm instead of the old 9000rpm)
never crosses 65 now

 

[Chetan1991]

Mosfet cost 350, with shipping costing more than the IC itself, the crappy pads were 350 as well, while the copper pad was made of a part of some old motor I got for free.

Mine is a laptop gpu so temps are going to be somewhat higher.

 

[kkn13]

Mosfet cost 350, with shipping costing more than the IC itself, the crappy pads were 350 as well, while the copper pad was made of a part of some old motor I got for free.

Mine is a laptop gpu so temps are going to be somewhat higher.

mines also a laptop gpu