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ASUS GTX 960 - power gone after plugging 6 pin 12V connector
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Micchaleq [ 11 фев 2019, 18:03 ]
Заголовок сообщения:  ASUS GTX 960 - power gone after plugging 6 pin 12V connector

Good afternoon,

I have problem with Asus GTX 960. There are no power on GPU and Memory. That is why I changed two components marked by green square on the front pcb. When the power doesn't apear I lifted GPU but it didn't change anything.

Once I forgotten plug the 6 pin connector and I measured powers on GPU and Memory. I was surprised that everything is ok. However, after I plug 6pin connector the powers have gone. Then I started measured INA3221 on the back of PCB (marked as green square). I changet it to new one. I found the broken resistors (marked red arrows). Two resistors under capacitor was replaced by 2x 20ohm. I have asus gtx 970 where are similar situation and there are 20ohm each. However, I dont know the resistor R1130 and I used 150ohm.

Now I have situation that when the 6pin is conected I haven't power on gpu and memory.
There are no shorts. The powers 12V 5V 3,3V present. What I schould check now?

I have to stress that GPU is lifted so I can't check screen without 6pin connector. I would like to solve it first and then I will put GPU back.

Is anyone have any idea?
Is anyone know which (size) resistor schould be used on R1130 and R1129?

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Raydel87 [ 07 мар 2019, 23:55 ]
Заголовок сообщения:  Re: ASUS GTX 960 - power gone after plugging 6 pin 12V connector

Hello friend, you can look for the equivalent resistors on this two schematics. INA3221 circuit is preety much the same in all video cards. You should also look for the enabling signals of the GPU and Memory IC power controllers, and trace back what is getting those signals low. Hope it help. Let me know how it goes.

iobuggy [ 13 мар 2019, 03:08 ]
Заголовок сообщения:  Re: ASUS GTX 960 - power gone after plugging 6 pin 12V connector

did you check if there is a short circuit on the mosfets

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