Good, 

Have you tried passing the DDU and cleaning the drivers to test with a clean installation of them?

@iasaltadormars Yes, I also passed DDU and tried both with old and new drivers, I tried with my 1000w corsair power supply (currently I have a 650w cooler master on that pc), I also tried the graphics on another pc and the same thing happens and everything remains the same

@pablokoutanya If the memories with the Nvidia MATS give you correct, there is only one thing left, some welding of the GPU is in bad condition and does not make contact. Or the chip internally is bad.

The first is easy to test, fast reflow and if it works fine, there you have it.

Answered by: @iasaltadormars

@pablokoutanya If the memories with the Nvidia MATS give you correct, there is only one thing left, some welding of the GPU is in bad condition and does not make contact. Or the chip internally is bad.

The first is easy to test, fast reflow and if it works fine, there you have it.

 

So far I've done 2 reflows. one on a laptop and it worked and another on a 770 memory and.... it didn't turn on anymore: v... temperature recommendations and others when reflowing? I have a soldering station but the air flow regulator does not work (it works at maximum air power)

To comment... the gpu 770 well had a problem that all the tests were fine but when running a game the graphics disconnected by itself from the pc, they recommended me to reflow a memory that gave 8 errors in mats and well... after doing reflow when connecting it to sparks in the pci port, from there never again: v