Question I need help fixing my graphic card

[mirdza83]

Hi all.
I am trying to repair my graphic card, its NVIDIA GTX1070 8gb FE.
There is no video output but fans are spinning.
There was a problem with electricity in my house and my monitor broke down with the GPU. I am suspecting that the power surge came threw the DVI cable.

There are no shorts to ground or 12v. I tested everything.
All voltages are present except on vmem rail (5v, 1.8v, vcore 0.7v, pex 1v)
Resistance on vmem inductor is 30ohm(not sure about this i think it shoud be higher, memory modules are made by samsung)
I removed and tested the N-channel mosfet before vmem rail inductor and it is good.
I checked the PWM controller before the N-Channel mosfet with marking 7J=YM and it seams fine(VCC=5v, VREF=2v, EN=1.8v(on RepairWiki page it says it should be arond 3v so maybe thats the problem))
I also checked the PEX PWM controler uP1728Q ( EN=1.9v, Vin=3.3v and VDD=5v)

7J=YM
https://postimg.cc/pmj0mvhZ

 

[tecmo34]

I'm going to ask the simple (dumb) questions, as your review of the PCB seems very detailed looking for issues.

1. Did you utilize a different or new DVI cable?

2. Have you tried running by DP or HDMI cable?

3. Have you reset you CMOS or is your MOBO giving off any error codes?

4. Have you tried another GPU or utilize iGPU (if applicable) to very the system itself boots fine?

 

[mirdza83]

The answer on all of your questions is yes