Question R9 280X no image no fans

TokyoSushiLlama

Prominent
Jan 29, 2020
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All fuses still work.
12V PCIe Slot
5V Rail
3.3V Rail

Memory Controller Coil has 35 Ohms to GND
VCore Coils have 0.4 Ohms to GND

All MOSFETS are not shorted to GND and show resistances on the gate pin to GND in the kOhm Range

When powered on, all VCore MOSFETS have 0V expect for the rotated ones of the 3 in a horizontal row. They have 12V on one pin (but not Gate).
Also VMem MOSFETS show no voltage too.

I'm so frustrated and don't know where this comes from...
I bought the GPU as defective from eBay to teach myself to repair GPUs / diagnose them with stabbing with my multimeter probes.

What can I try next?
Any ideas?
How is it possible that there's no voltage???
 

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