Update 2:
All rails are present; 0.9V on the VCore and 1.2V on the VMem. The red LED is turned on, indicating that the GPU is active.
However, no output is present. Does this suggest a dead core or are there some things to check before that?
Update: IR35217 phase controller and 4C86N memory FET replaced.
Afterwards, I was missing VDDCI (memory controller voltage) and I found a dead 1 ohm resistor which supplies 12v to Vcc on the corresponding circuit to the IC on the backside (not sure exactly what it does since there is one on the...
The ICs (4C86N FET and IR35217) have now been removed since the FET had some physical markings on it and the phase controller because I accidentaly fried it by contacting positive voltage to ground, making it give off some, not so nice, smoke. Not in a dramatic way though, do not think I have...
I have ordered the IR35217, which got accidentally fried, but also the 4C86N which is the controller for the memory rail if I managed to figure that out correctly.
To make it clear, VCore is around 0.9v during startup, 0.7-0.8V in Windows but around 0.0-0.1V when in "crashed state".
Resistance mode over the cap is under 0.5homs, dont have a milliohm meter.
Furmark could be ran for 10 minutes, had to stop due to bad fan cooling solution for testing purposes at 230+W. At the same time, it COULD crash at Windows initialising during the first couple of seconds without really...
Since I have an identical card, I checked the values on that one and same result - caps on the backside have continuity through them?
Strange, but it working flawlessly. I accidently fried the IR35217-controller though, so I have to change that first. May be waste of time and money, but I am not...
I accidentaly found this thread, clarifying those are not capacitors but rectifiers. Thought? They are still shorted!
https://www.techpowerup.com/forums/threads/chips-behind-gpu.232540/
Alright. Well, did you find any of the shorts on the 470uF capacitors?
I believe have have the same issue as this since all (except the last two, for the memory I think?) are shorted to ground on both poles. There are 14 black caps like this and like 20-30 smaller yellow caps on the backside of...
Have you thrown the GPU into the bin or continued fighting? I am think I am, if not close, in the same situation. I would love to get an update from you and I can measure on my two cards for you! Something shorts the caps on the backside of the GPU chip, but not only do I know if it is one of...