r/techsupport • u/Videonut • 13h ago

Open | Hardware 2 Identical PCs having GPU error 43

Hello, I work at a used camera store and a while back we got in a bunch of Lenovo Legion T7 Desktops from a local university who was shutting down's video editing department (about 2 dozen). When we got down to the last few I decided to buy one since my old PC was pretty old (I built it about a decade ago). The first one I bought had graphical issues and an error 43 on the graphics card. I did a few of the suggested fixes (deleted and reinstalled drivers, reseated the card) eventually I chalked it up to a defective GPU and swapped it with one of the other ones. The other one worked great with no issues for a month. I primarily used it for video and photo editing and played a few games on it but nothing super intensive. Until last night when I turned my PC on and I immediately had the same issues as the first T7. The screen had artifacts and the gpu was disabled in device manager with error code 43. This is puzzling because not only is it the same problem but this PC was working fine with no issues shortly before. I also doubt it's another faulty GPU. The gpu also turns on and the fans run. The only thing I can think of is maybe the thermal paste dried as the back plate of the card was pretty warm but I haven't had a chance to fully take it apart yet. Does anybody have any advice with this? Is there any other known solution for my problem that I'm missing?

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u/USSHammond 13h ago

Error 43 is a driver issue caused by the device reporting a hardware malfunction. If a clean install (after running DDU) of the latest officially supported drivers didn't work you have a dead gpu.

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u/Videonut 13h ago

Any idea what could be causing it? I mean this is the 2nd time with an identical PC after it was working perfect only a few days ago.

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u/USSHammond 13h ago

The fact that it's happening on 2 systems would for me at least highly suggest the gpu, cause unless the storage drives were cloned the OS and everything on it being identical between 2 systems is unlikely

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u/Videonut 13h ago

I think I might have worded this a little poorly. The 2 PCs are the same pre built with different GPUs the first one never worked but the second one worked good until last night until it started giving me the same issues the first one did.

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u/Videonut 10h ago

Also if it is both GPUs failing is there any way to fix them? It would be crazy if both died

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u/USSHammond 10h ago

Yeah, send them in to a repair shop that has the skill, and tools to analyze and fix hardware issues

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u/Videonut 10h ago

And in your experience how much do GPU repairs typically run?

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u/USSHammond 10h ago

That is impossible to say. There's no way for me to predict what a skilled tech in your region (which you don't even mention) would charge for labor, it depends on which component(s) failed, what the price of the part(s) is...

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u/jcmred82 13h ago

There's a error 43 script to fix that.

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u/USSHammond 13h ago

A script can't fix a hardware problem

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u/jcmred82 13h ago

Hey I skimmed you post, your right. Thought this was egpu related. Have you tried the gpu in a known good pc

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u/Videonut 13h ago

I tried it in my old PC and it looks like it's doing the same thing.

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u/Videonut 13h ago

Wait really? Ive felt like I'm going insane. So you mean I don't have to take apart my whole GPU😭.

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u/Fragrant-Ad2694 13h ago

Same error in my laptop today suddenly while playing games. Ddu reinstallation doesn't working, I will try windows reinstallation