intrepidpig
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- Joined
- Feb 10, 2022
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Hi everyone,
I have a 750 Ti that's showing a code 43 in the device manager. The code 43 doesn't actually always show up, but the card doesn't work at either way. I think there's some issues happening with the VBIOS. I don't think I ever actually changed the VBIOS on the card itself, but I was messing around with using fake alternatives it when passing through the card to a Windows KVM virtual machine. I never actually flashed a VBIOS I don't think, I just overrode the original one in the hypervisor settings. This may or may not be related to the issues I'm facing now. If my memory serves then I was actually trying different VBIOSes because I was already getting a code 43 from the start, so I don't think thats actually the cause.
It's possible that the card is just dead. It is pretty old after all.
GPU-Z shows a bunch of unknown fields:
Something weird I noticed is that when I dumped the VBIOS with nvflash, it differs by exactly one byte (one bit actually) from the techpowerup version here: https://www.techpowerup.com/vgabios/167660/evga-gtx750ti-2048-140825. Is it possible a bit accidentally flipped somehow and is causing issues? I'm worried to try flashing the downloaded version for fear of damaging the card, but it might be worth a shot.
The card also doesn't function in linux. In the kernel log I get messages very similar to this:
Any suggestions/ideas on whether I could fix this, is it a good idea to flash the downloaded vbios, or something else?
I have a 750 Ti that's showing a code 43 in the device manager. The code 43 doesn't actually always show up, but the card doesn't work at either way. I think there's some issues happening with the VBIOS. I don't think I ever actually changed the VBIOS on the card itself, but I was messing around with using fake alternatives it when passing through the card to a Windows KVM virtual machine. I never actually flashed a VBIOS I don't think, I just overrode the original one in the hypervisor settings. This may or may not be related to the issues I'm facing now. If my memory serves then I was actually trying different VBIOSes because I was already getting a code 43 from the start, so I don't think thats actually the cause.
It's possible that the card is just dead. It is pretty old after all.
GPU-Z shows a bunch of unknown fields:
Something weird I noticed is that when I dumped the VBIOS with nvflash, it differs by exactly one byte (one bit actually) from the techpowerup version here: https://www.techpowerup.com/vgabios/167660/evga-gtx750ti-2048-140825. Is it possible a bit accidentally flipped somehow and is causing issues? I'm worried to try flashing the downloaded version for fear of damaging the card, but it might be worth a shot.
The card also doesn't function in linux. In the kernel log I get messages very similar to this:
May 7 08:05:23 loki kernel: NVRM: GPU 0000:08:00.0: Failed to copy vbios to system memory.
May 7 08:05:23 loki kernel: NVRM: GPU 0000:08:00.0: RmInitAdapter failed! (0x30:0xffff:864)
May 7 08:05:23 loki kernel: NVRM: GPU 0000:08:00.0: rm_init_adapter failed, device minor number 0
Any suggestions/ideas on whether I could fix this, is it a good idea to flash the downloaded vbios, or something else?
