80 c HS under load at 1.1v sounds ok for now, especially on air, you can always block it if you had too and like your card .
My Daily is 1.25 undervolt and locked the clock at 2910 and 1470 mem , It pulls about 450w and Speedway scores 10800.  temp is 42 C with HS delta at 11c , so 53C . water saturates about 29C at ambient 74 F, I just ran the stinky VL donut and it pulled 535 W , lol , si its just a tune i have found were the card is happy , Lower temp than stock and about 6 % faster , My Cooler version is .975 at 2820clk +1200 mem amd it runs at 39-40 c all day long , Cyberpunk , Hogwarts , PR Stress test , doesn't matter and does not heat up my room .

Sajin

Any demanding game should do the trick then.

Have you tried running OCCT basic GPU test at the......I think....default load of 100% with your voltage settings or just stock since your repaste?  I'm curious to find out what your hotspot delta is on that vs the main GPU temp.  I had OCCT set to stop any test if a sensor hit 80C and about 7.5 minutes into a 100% load GPU test it shut down due to 80C on the hotspot with 61 or 62 on the core.  Water was up to 37C but I didn't have my fans fully ramped.  Pretty sure it's passed this test before though so I'm wondering if TG dries out, or my mounting screws are no longer as tight as they should be, the 4 around the core.  I don't remember what cooling you're on though, in my case I'd have to try and get an EKWB backplate off while it's in the rig on a vertical GPU mount.  Temps are usually within expected deltas in actual content though.

flyinion

Sajin

Any demanding game should do the trick then.

Have you tried running OCCT basic GPU test at the......I think....default load of 100% with your voltage settings or just stock since your repaste?  I'm curious to find out what your hotspot delta is on that vs the main GPU temp.  I had OCCT set to stop any test if a sensor hit 80C and about 7.5 minutes into a 100% load GPU test it shut down due to 80C on the hotspot with 61 or 62 on the core.  Water was up to 37C but I didn't have my fans fully ramped.  Pretty sure it's passed this test before though so I'm wondering if TG dries out, or my mounting screws are no longer as tight as they should be, the 4 around the core.  I don't remember what cooling you're on though, in my case I'd have to try and get an EKWB backplate off while it's in the rig on a vertical GPU mount.  Temps are usually within expected deltas in actual content though.

I only ran it for like a minute to see if I would black screen like you did. I'm using the stock air cooler.
 
When my card was new I ran the msi kombustor (vk) furmark-donut stress test with fans & voltage maxed out and got the following result...
 

 
I haven't tried to run that test again as I'm already hitting 80C on the hotspot just running CP2077 @ 480w. 
 
 

Ok thanks, looks like 82C might not be abnormal for extreme stress testing for the hotspot temp.  Maybe I need to set the OCCT setting to 84 to match the max GPU temp.

No problem.

600W to hit 80  and now its hitting it at 480, I think maybe the vapor chamber might be compromised. Unless someone who blocked a card sells you a stock cooler , RMA might be the only choice 

kraade
600W to hit 80  and now its hitting it at 480, I think maybe the vapor chamber might be compromised. Unless someone who blocked a card sells you a stock cooler , RMA might be the only choice 

Maybe the vapor chamber is compromised. Maybe the cooler is warped. Who knows. I won’t be rma’ing until it’s constantly hitting 95c at 450w.

Sajin

rjohnson11
Good Luck and hope this gets solved quickly

It’s resolved for now. Card is working fine at the moment. If it gets hot again I’ll try some thermal grizzly kryonaut, or maybe even some kingpin cooling kpx before rma’ing.

So I"m not sure about the paste you did have on there, but I was debating giving KPX a try and was looking up comparisons to Kryonaut which I've been using.  Found some info that apparently Debauer (spelling?) has said Kryonaut on GPU's is expected to be replaced after a year.  If true that might explain my hotspot temp also seeming to be a bit higher under OCCT type loads than I remember.

flyinion

Sajin

rjohnson11
Good Luck and hope this gets solved quickly

It’s resolved for now. Card is working fine at the moment. If it gets hot again I’ll try some thermal grizzly kryonaut, or maybe even some kingpin cooling kpx before rma’ing.

So I"m not sure about the paste you did have on there, but I was debating giving KPX a try and was looking up comparisons to Kryonaut which I've been using.  Found some info that apparently Debauer (spelling?) has said Kryonaut on GPU's is expected to be replaced after a year.  If true that might explain my hotspot temp also seeming to be a bit higher under OCCT type loads than I remember.

Before I repasted it was the original paste. Not sure what the original paste was, but it was really good until it got burnt off. When I repasted there was hardly any of it left on the die.

Sajin

flyinion

Sajin

rjohnson11
Good Luck and hope this gets solved quickly

It’s resolved for now. Card is working fine at the moment. If it gets hot again I’ll try some thermal grizzly kryonaut, or maybe even some kingpin cooling kpx before rma’ing.

So I"m not sure about the paste you did have on there, but I was debating giving KPX a try and was looking up comparisons to Kryonaut which I've been using.  Found some info that apparently Debauer (spelling?) has said Kryonaut on GPU's is expected to be replaced after a year.  If true that might explain my hotspot temp also seeming to be a bit higher under OCCT type loads than I remember.

Before I repasted it was the original paste. Not sure what the original paste was, but it was really good until it got burnt off. When I repasted there was hardly any of it left on the die.

try honeywell ptm7950 its pretty good