• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Is my GPU broken?

Skilid

Skilid

Skilid

Soldato
Joined
20 Sep 2006
Posts
2,828
Location
Hampshire
So I've just bought a Vega 64 from a user on the forum through the members market. I fitted it the other day and noticed some weird colours coming up on the screen but didn't really think anything of it.

Today I've noticed it much more. It seems to appear on the task bar and also when watching YouTube videos. Whenever things move around within windows I see it. Performance in games seems OK, but it's hard to tell when things are full screen.

Before I go back to the seller, is there anything I can try? I've never seen anything like this before and swapping my old card back in makes the problem go away.

I'm connected through one of the display ports. Is it maybe worth swapping to another port, or is the card broken?

I have some images here: https://imgur.com/a/QevYHhn

Two videos here: https://youtu.be/8G_S3GOYvVI & https://youtu.be/SV5fUlSri0U

Thanks!
 
Always worth trying another port, but that looks a bit like memory corruption to me. Have had a broken Vega 64 here ages ago, not had this though.
 
So I think I may have found the problem. I'd followed lots of recommendations online to undervolt the card. Followed all the steps properly and tested thoroughly. Never saw any issues in games (played for 2+ hours yesterday).

If I reverse my undervolt by 10mv the problem goes away. I was running -130mv, but increasing this to -120mv seems to have resolved it. I confirmed this by lowering even further to -140mv and the artifacting in windows was even worse.

Panic over :)
 
It's weird though, because in games and when the GPU is being stressed there are no issues whatsoever at -130mv. As soon as it goes to a lower power state and it's just doing the windows desktop it starts freaking out. Very strange.
 
Your card has a problem at the stock settings and I'd return it to the person who sold it to you on the MM.

It may be ok now but give it a few months and it may get worse.
 
i had the same problem with a 290x, its a fault with the memory by the looks of it, the undervolting fix is a sign its on its way out

you will get away with undervolting it by that much then in while it will need to be reduced further to function until it just dies altogether

it might take a few days or weeks but its not going to last long, i would return the card asap if you only got it
 
This was only going to be a stopgap card until all the new nVidia/AMD cards were announced/launch and things had settled down. I'll keep it at the new settings and keep an eye on it.
 
You must log in or register to reply here.
Back
Top Bottom