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Electronics => Repair => Topic started by: iamdarkyoshi on November 13, 2016, 02:16:57 am

Title: Repairing a dead GTX 660Ti, need advice
Post by: iamdarkyoshi on November 13, 2016, 02:16:57 am

I've bought a GTX 660Ti PCB off of ebay, listed as not working.

I've strapped a cooler onto it, and put it in an asrock motherboard as a secondary GPU.

The bios' system browser doesn't even detect anything in the pcie slot, and nvflash detects nothing.

I desoldered the bios chip, dumped it, and flashed a new bios from techpowerup's bios collection, one for the original card.

Put it back in, still the same result. I've checked the 0 ohm resistors/fuses, all are intact

What should I try next? None of the VRMs look visibly exploded...

Title: Re: Repairing a dead GTX 660Ti, need advice
Post by: TiN on November 13, 2016, 03:19:25 am

Measure voltage on GPU, memory, aux rails? :)

Title: Re: Repairing a dead GTX 660Ti, need advice
Post by: iamdarkyoshi on November 13, 2016, 04:16:17 am

Quote from: TiN on November 13, 2016, 03:19:25 am

Measure voltage on GPU, memory, aux rails? :)

How could I forget the number one rule? Thou shall check voltages!

Title: Re: Repairing a dead GTX 660Ti, need advice
Post by: iamdarkyoshi on November 13, 2016, 04:38:44 am

Vcore 0.939
Vmem 1.605

These seem reasonable for an idle gpu.