Ремонт: Ноутбуков, Компьютеров
https://vlab.su/

GTX 660 Ti Gigabyte - no voltage on Vram
https://vlab.su/viewtopic.php?f=48&t=121848
Страница 1 из 1

Warus23 [ 23 дек 2021, 19:23 ]
Заголовок сообщения:  GTX 660 Ti Gigabyte - no voltage on Vram

Hello.

I bought a cheap damaged graphics card (GV-N66TOC-2GD) to be repaired. I think it's flooded. The PC does not recognize the card. After checking the voltage on the core is about 0.9 V and on Vram 0 V. The resistance on the Vram lines looks good (about 90 Ohm).
I located and replaced the defective 0 Ohm resistor (R628) but nothing has changed. I also replaced the ncp5392p chip with a new one.

The mosfets and drivers of the mosfets seem to be working .

Maybe GPU flooding can lower the voltage on Vram to 0 V?
Does anyone have schematic to this card?

Изображение
Изображение
Изображение
Изображение

Radiolubitel [ 03 янв 2022, 22:05 ]
Заголовок сообщения:  Re: GTX 660 Ti Gigabyte - no voltage on Vram

Warus23
Hello, maybe need resoldering or replacing this ic:

РоманВК [ 10 дек 2023, 21:31 ]
Заголовок сообщения:  Re: GTX 660 Ti Gigabyte - no voltage on Vram

Hello! I got absolute identical situation, on same card.
Voltage of memory do not appears, an VCORE is about 0.9v.
This is my old broken videocard, Idk what happens with it, but I have no picture on screen and probably no voltage on VMEM could be a problem.
I will try to follow recomendations and resolder controller or electrical key that recommended to resolder e.t.c.

I still not found boardview for concretly this videocard, even in 2023.
If anyone have boardview for GV-N66TOC 2 or 3GD, please, help.

Thank you all for your help! :co_ol:

Anonymous40390 [ 01 фев 2024, 00:22 ]
Заголовок сообщения:  Re: GTX 660 Ti Gigabyte - no voltage on Vram

Did you managed to fix it ?, i also have a waterdamaged GPU that i need to fix

Страница 1 из 1 Часовой пояс: UTC + 4 часа
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/