Question RTX 2070 artifacting when power limit is set to max

[losemi]

Hi guys!

So I just got 2070 gaming z, then used msi oc scanner and when it set a curve of +135 core clock I was using it for a couple of days without problems. Then I booted up RE2 and suddenly white artifacts everywhere! I noticed in that moment power usage was 104 while power limit was set to 100 in afterburner, so I thought I happened because there wasn't enough power so I reset clock speed to stock and raised power limit to max, then ran furmark test. After a couple of minutes same white artifacts, so I restarted pc, returned power limit to 100 and ran furmark again with everything on stock for 30 min twice and everything was fine, also all games ran fine after hours of playing (ac oddisey, kingdom come, metro exodus...)

Now my question is, what does this mean!? Is there insufficient power from psu? Is it because I raised power limit without touching core voltage? Could it be that it's just unstable at max power limit? Or is it a faulty card perhaps?
Psu is coolermaster b600 rev.2 (Yes I know its not ideal and I should get a better one, but since I don't have optical drive or ssd or anything of that sort that would draw more power I thought it was enough, am I wrong?)

It's only been 2 weeks since I got the card and if it's faulty I would really like to return it asap so any insight would be greatly appreciated! Thanks!

 

[DSzymborski]

It's hard to say with a garbage PSU in the mix. Optical drives/SSD use next to no power and are practically irrelevant. The Coolermaster B600 was always a terrible PSU and it has no business powering a $500 GPU. That you were actually trying to stress test and even overclocking with this PSU under any circumstance is a bit frightening.

 

[losemi]

It's hard to say with a garbage PSU in the mix. Optical drives/SSD use next to no power and are practically irrelevant. The Coolermaster B600 was always a terrible PSU and it has no business powering a $500 GPU. That you were actually trying to stress test and even overclocking with this PSU under any circumstance is a bit frightening.

I see, so psu is a likely suspect then. I'll get a new psu in that case. So do you think that idiotic fiddling I've done could have caused some damage to the card?

 

[DSzymborski]

I see, so psu is a likely suspect then. I'll get a new psu in that case. So do you think that idiotic fiddling I've done could have caused some damage to the card?

It's possible, depending on exactly what you touched. But this GPU shouldn't be used on this PSU in the first place. Gotta get that out of the mix before diagnosing any further problems.

 

[losemi]

It's possible, depending on exactly what you touched. But this GPU shouldn't be used on this PSU in the first place. Gotta get that out of the mix before diagnosing any further problems.

As I said, just used afterburner oc scanner which set +135 curve on core clock then returned it to stock, and ran furmark with power limit set to max, that's all. I don't know much about this stuff so im afraid that could have caused some damage to the card, that's why I asked. I didn't know the psu was that bad so i'll replace is asap. In any case, thanks for the fast replies man!