Hello everyone I installed my 3080ti FTW3 last night and ran into multiple pc reboots while gaming. All temps are fine on the cpu and gpu. I replaced my evga 1080ti founders edition and never had any issues with it. I'm currently running a Seasonic Prime Titanium 850 PSU purchased in 2016. I'm looking to see if anyone thinks its a PSU issue or a software/driver issue or even a faulty card. It only happens when gaming. I also even tried to under clock the power target in x1. All drivers, BIOS and card firmware up to date. BAR enabled.
 
i9-10900kf
MSI MPG z490 carbon EK x
32GB G.Skill Trident Z DDR4 PC3000
Custom water loop.
Windows 10
 

Stock right now, waiting for my EK block to come in the mail. 
The only test I have run is the Heaven Benchmark, and it handled it no problem.
I've had Hwinfo64 up while gaming and I can never catch what the 12v, 5v and 3.3 rails are doing.
 
The pc just shuts completely down and reboots.
I've had some sessions where it is fine for hours others where its back to back. 
 
I have read my older seasonic prime can't handle the 3080 ti. I plan on running the 3080 ti on the oc bios once I get the water block.
 

Yes,
Thanks for the time Safan, Appreciate the help.

I will try it at 70% and report back.

napz0r
update, I downloaded OCCT. Ran the power test for my PSU and replicated what has been happening to me with power target at 100% Ran it again at 70% and it does not reboot.

Test ranges between 70% and 100%. See if 95% does and work backwards.

Could be a PSU related issue. You might be tripping the OCP or something.

napz0r
That's what I'm trying to figure out. However I came here because people here are far more knowledgeable than I with this stuff. And I would rather not throw money at the problem. You guys think I should get a bigger psu or RMA seasonic.

First I would like to insure you have at least two separate 12V coming from the power supply plugged into the GPU. I that is so you will be needing to replace the unit either way.  The reason I would suggest you buy a new PSU is so during the seasonic 850 watt RMA you are not stuck waiting for the replacement to come. You can always test the replacement when you get it and sell it on the internet if the replacement checks out.

napz0r
That's what I'm trying to figure out. However I came here because people here are far more knowledgeable than I with this stuff. And I would rather not throw money at the problem. You guys think I should get a bigger psu or RMA seasonic.

RMA with seasonic. 850W should be enough to handle the card. There were reports of seasonic PSUs having their OCP tripped due to transient spikes from 3xxx series cards around launch time. Seasonic should be able to replace the PSU with a newer revision.

safan80

napz0r
Stock right now, waiting for my EK block to come in the mail. 
The only test I have run is the Heaven Benchmark, and it handled it no problem.
I've had Hwinfo64 up while gaming and I can never catch what the 12v, 5v and 3.3 rails are doing.
 
The pc just shuts completely down and reboots.
I've had some sessions where it is fine for hours others where its back to back. 
 
I have read my older seasonic prime can't handle the 3080 ti. I plan on running the 3080 ti on the oc bios once I get the water block.

 
Both the gpu and cpu are stock? If not run the whole system at stock. Try using occt or furmark to test with. What I would personally do is find another PSU say 1000-1200 watts, but only If you can pay msrp for it. Then  if everything turns out fine with the new PSU I would RMA the 850 back to seasonic.

Good advice, personally I wouldn't run a 3080 Ti with anything less than 1200W, and Platinum and above at that.

ObscureEmpyre

Governator

safan80

napz0r
Stock right now, waiting for my EK block to come in the mail. 
The only test I have run is the Heaven Benchmark, and it handled it no problem.
I've had Hwinfo64 up while gaming and I can never catch what the 12v, 5v and 3.3 rails are doing.
 
The pc just shuts completely down and reboots.
I've had some sessions where it is fine for hours others where its back to back. 
 
I have read my older seasonic prime can't handle the 3080 ti. I plan on running the 3080 ti on the oc bios once I get the water block.

 
Both the gpu and cpu are stock? If not run the whole system at stock. Try using occt or furmark to test with. What I would personally do is find another PSU say 1000-1200 watts, but only If you can pay msrp for it. Then  if everything turns out fine with the new PSU I would RMA the 850 back to seasonic.

Good advice, personally I wouldn't run a 3080 Ti with anything less than 1200W, and Platinum and above at that.

I'm using a 1000W 80+ titanium PSU for my 3080 Ti. Still have headroom.

the efficiency is probably towing the line here, nevertheless great info 👍

Also just ordered a super flower 1000 Platinum SE from newegg. I'll rma my seasonic and pray the super flower fixes the problem.

Thank you, ill update this thread once I get it installed.

napz0r
Also just ordered a super flower 1000 Platinum SE from newegg. I'll rma my seasonic and pray the super flower fixes the problem.

PSU so nice I bought it twice! OG Leadex at a good price, plenty of cables and ports.  Seems to work on a 3080 Ti FTW3 just fine, fingers crossed.  Had similar shutoff problems to you with a 1300w Prime Gold.

Yeah bud seems a lot of seasonic PSU's cant handle the transient power spikes of this card. It's amazing how far gpu tech has come.