Question GPU shutting down

[Inept Aphid]

I recently bought an Gainward Phoenix rtx 3080 . The card seems fine and runs cool at idle( 29-32c). But once I put a strain on it, such as in vr gaming, the second the card hits 80c it crashes completely. I have to reset my pc from the PSU switch.

There's no throttling, or warning, it just immediately crashes. Even if I set the fans to 100% speed it happens.

This happens after a few minutes of running a 4k benches, or about 10 mins of playing DCS World in vr.

I had previously used my girlfriends 3080 in my build with no issues at all. Her card would hit about 85c and keep gaming fine. Even my old 1080ti was handling vr gaming ( just about) without crashes.

Since this has started, I've added 2 more fans to my case, and upgraded to a new PSU ( 850w gold NZXT)

Can I increase the temperature at which the card shuts down?

Specs:
Gainward Phoenix rtx 3080
R5 3600
32GB DDR4 @3000MHz
B450-f
NZXT C850w Gold.
1TB M.2
Win 10 Pro

 

[Lutfij]

it crashes completely
Please elaborate what you understand a crash to be...?

Since this has started, I've added 2 more fans to my case,
Make and model of your case?

and upgraded to a new PSU ( 850w gold NZXT)
What PSU were you on prior?

NZXT C850w Gold.
So this is brand new?

Even my old 1080ti was handling vr gaming ( just about) without crashes.
Did you run DDU to remove all GPU drivers prior to swapping the GPU's?

 

[Inept Aphid]

it crashes completely
Please elaborate what you understand a crash to be...?

Since this has started, I've added 2 more fans to my case,
Make and model of your case?

and upgraded to a new PSU ( 850w gold NZXT)
What PSU were you on prior?

NZXT C850w Gold.
So this is brand new?

Even my old 1080ti was handling vr gaming ( just about) without crashes.
Did you run DDU to remove all GPU drivers prior to swapping the GPU's?

Screen goes black. GPU fans spin up to max and screen stays black until pc is restarted from the PSU.

Case is MSI Vampiric 100r. Issue was happening in my old case too. Just got new case yesterday.

Old PSU was a 750w gold. NZXT is brand new.
Yes totally removed old drivers, and as I say, when using my girlfriends 3080 in my build I have no issues