EVGA RTX 3090 FTW3 - Diagnosis Help, PC powers on but not GPU
Hello! Got this GPU off a friend for a good deal so figure I’d take a stab at fixing it.
Currently, PC will power on and POST with the card installed. However, the card itself has no display out and appears to not be receiving power (there are 4 red LEDs by the power connectors that turn on). Using iGPU, the device is not recognized at all.
So far I’ve tried measuring fuses to see if any are blown. The 3 by the 8-pin PCIe power connectors are fine (F6502, F6503, F6504). The other fuse I found on the backside (F6501, circled in red) seems to be blown.
I measured some of the resistances to ground on the PCIe connector pins as well. All the 12V pin seem to be fine, reading thousands. However the 3.3V pins seem to be shorted to ground (about 15 ohms).
This is where I’m a little more lost on diagnosing this (or if it’s even salvageable). Not sure where to go next, what should I check?