System Information: GPU: NVIDIA GeForce RTX 5090 (GB202, PCI 0000:01:00.0) CPU: AMD Ryzen 9 9950X3D (AMD iGPU also present: Radeon RAPHAEL_MENDOCINO) OS: Kubuntu 25.10 (Questing Quokka) Kernel: 6.17.0-20-generic Driver: 595.58.03 (nvidia-open-dkms, installed via .run) Desktop: KDE …

Thanks for this post!. I was having many crashes with RTX5090 and finally system seems stable with pcie_aspm=off and a Bios update for my Gigabyte Z890 GAMING X WIFI7 motherboard. Posted my related observations here

I got the problem. Did you resolve it? Please advise. Thanks. Posted my same issue.

Adding a data point that reproduces Xid 79 across two independent CUDA software stacks on a non-AMD platform, which may help narrow down whether this is thermal/AGESA-specific or a broader GB202 issue. System: GPU: RTX 5090 32GB, PCI 0000:02:00 Platform: Intel (Arrow Lake-S), HP OMEN 45L prebui…

For me the system stabilized after I replaced my PSU. You could start with replacing the 12VHPWR/12V-2x6 cable first. I had the same crash and tried 3 different 5090s and all have the same symptom. Took me a month to figure out the PSU might be at fault.

RTX 5090 (GB202): Spontaneous GSP heartbeat timeout / Xid 79 "GPU has fallen off the bus" under Vulkan load and idle

Graphics / Linux Linux

consume May 23, 2026, 1:00pm 2

Potentially related issue, supposedly an AGESA downgrade solves it - Bug Report & Fix: RTX 5090 — Xid 79 GSP Firmware Crash Under Sustained CUDA Load - #2 by consume

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RTX 5090 (GB202): Spontaneous GSP heartbeat timeout / Xid 79 "GPU has fallen off the bus" under Vulkan load and idle

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