Overheating issue

Marshm4ll0 · May 6, 2021

I made a new build this year but it hasn't been 100 percent stable. I assumed it was because i wasnt knowledgable about clocking. But lately the crashes have gotten alot more consistent and frustrating.

I think I may finally have the answer. It's pretty consistent with the motherboard overheating or motherboard failure. What I think is happening is in the middle of games, The 3080's design is dumping hot air into the mobos vram fan. Temps from bios indicate that that's the case. All problems are consistent with mobo failure.

I cant really rma anything so I wanna know some second opinions before going forward.

1) is to vertically mount the card with a riser cable and flip some fan orientations.

2) purchase a new mobo where the fan is not obstructed. Idk where to start tho. But it's possible it's already dying due to me not diagnosing fast enough.

Chris Pratt · May 6, 2021

29 minutes ago, Marshm4ll0 said:

The 3080's design is dumping hot air into the mobos vram fan.

Nope. That's not it. VRAM is not a thing. VRMs is a thing, but those are under the big heat sink in the top and left of your board. There's also no fan for those. They're passively cooled via the heat sink. I think you may be getting VRM and RAM confused, because the GPU fan is near the RAM, but that's not going to be a problem. The only fan on the board, assuming this is an X570, is the chipset fan, and that's not even really necessary. It's there because the spec requires it, but it pretty much is never even going to come on unless your board is literally melting.

Besides, this is actually a thing that was pretty heavily tested when the 30-series first came out, because the fan design on the FE cards made a lot of people concerned about higher CPU temps. In practice, it does raise the temp, but only very slightly, and it's mostly negligible.

The CPU temp is definitely fine, so it's still unclear what your exact problem may be with the information you've provided, but you can at least rule your current theory out.