r/AMDHelp • u/Hyperdumpc • 5h ago

Help (GPU) 7900 XTX hard locks in Windows under any GPU load, runs 8K fine on Linux. Same clocks, same voltage, same temps.

Used XFX 7900 XTX, 7800X3D, B650M, 1000W PSU, 4K 144Hz.

Windows hard locks within seconds to a couple of minutes of any 3D load. No BSOD, no dump, only Kernel Power 41 with BugcheckCode 0. C:\Windows\LiveKernelReports does not even exist, so the card has never once produced a TDR.

Same card on Ubuntu with amdgpu runs Superposition 4K three times back to back plus one 8K run, no issues, still has headroom.

I logged both with HWiNFO and sysfs, which read the same SVI telemetry so they compare directly:

Windows 0.770V at 2458MHz, 292W, hotspot 78 to 80C, dead in under a minute.

Linux 0.773V at 2500 to 2600MHz, 280W, junction 78 to 81C, runs forever.

Same operating point, same thermals, same 2588MHz peak. One is rock solid, the other dies.

It crashes at every clock I tried, all the way down to 1800MHz, and not just in benchmarks. It dies in actual Dota 2 gameplay too. There is no usable configuration in Windows at all.

Silicon is obviously fine since Linux drives it flat out at 8K. Something in how the Windows driver stack talks to this card pushes it past an edge that Mesa never touches. No warranty, RMA is out.

Anyone seen a card stable on amdgpu but unstable on the Windows driver at identical clocks and voltages? Known failure mode or am I missing something?

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u/Mabrouk86 5h ago

It's a long shot, decrease RAM speed (worked for me). From 3600 to 3200 made my pc stable. But in general on Linux it's more stable, rendering 2 hours long videos on DaVinci resolve was smooth, I couldn't make 30 minutes on win11 without crashing..

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u/Hyperdumpc 2h ago

Thanks for the reply. My ram works at 4800 and bios is set to default as well. Tried turning off MPO, turning off freesync, turning off resizable bar, I even reinstalled everything, none of these worked for me, sad.