FYI, you’re not the only one with this issue. Brand new FTW3 Ultra 3090 with a clean install of windows and my pc just restarted in the middle of a Cold War game in hour 1.

As a point of reference, I had been running a Strix 3080 for about a month up until today with no issues on my 1000W psu.

This is my first experience with evga and so far not a good one.

I had the random reboot issue awhile ago too with my 5 year old EVGA 850W G2. Ironically, it happened mostly on idle or very light workloads (youtube and twitch). After trying several things with no solution, I end up letting a friend borrow the card and he ran it fine for a week. I contact EVGA customer service and got a replacement PSU and it has been 3 days since I replaced the PSU. So far so good but I will continue to monitor it until the end of the week to ensure stability. 
 
So for those who has those random reboots issue, my guess would to first put your gpu into known working system to make sure its not the GPU, follow by contacting your PSU manufacturer to send you a replacement.

I'm running into this issue with an older Seasonic X Series 850W power supply and my new EVGA FTW3 Ultra 3080. System will randomly reboot when running stress tests/certain games. Ran my old ROG Strix 1080ti just fine for years, as well with the same tests that cause reboots. Looking at the power draw, it seems like the 3080 was drawing almost 400W during peak load versus the 250W of the 1080ti.
 
I have a 1000W EVGA T2 on order, along with asking a friend to help test. Given this thread, I suspect the high transient peaks of the EVGA 3080 is what's causing it.

jankerson

jacoffey85

jankerson
 
 EVGA or Nvidia has no control over what the PSU manufactures do or don't do or how they design their units.


 
There are tiers of PSUs based on cost and quality just like everything else in the world today.
 
So just saying a X wattage PSU is recommended doesn't mean anything, it's the actual model of the PSU that matters. EVGA and all others sell total crap PSUs as well as good and then excellent ones as well.
 
There is a lot more to a PSU than just the wattage, efficiency rating or brand name. 

I have an EVGA 3090 FTW3 on the way. What else should I consider on PSU choice other than wattage and efficiency rating. I feel like I haven't been thorough enough with my research if there's a lot more to it than just those things.

 
Get a HIGH QUALITY PSU, 850W or 1000W or higher if you want more room.
 
A few examples:
 
Corsair RMX 850 or HX(i) 850
 
EVGA P2 or T2 850

I would just like to add, I have a rmx 850 2018 ver. And my 3090 red lighted during, I think blaming the psu might not be the play.

skyllian
I'm running into this issue with an older Seasonic X Series 850W power supply and my new EVGA FTW3 Ultra 3080. System will randomly reboot when running stress tests/certain games. Ran my old ROG Strix 1080ti just fine for years, as well with the same tests that cause reboots. Looking at the power draw, it seems like the 3080 was drawing almost 400W during peak load versus the 250W of the 1080ti.
 
I have a 1000W EVGA T2 on order, along with asking a friend to help test. Given this thread, I suspect the high transient peaks of the EVGA 3080 is what's causing it.

what type of shutdown are you getting? does your system hard shutdown then boot back up or is it a restart? I'm still testing as i'm getting hard shutdowns with my XC3 but to me its not related to the PSU the card is tripping something out forcing the PSU to shutdown, cold war satellite map has been the worst for me but as my shutdown is random and doesn't happen all the time its a hard one test.

In the same Boat:
 
EVGA 3090 FT3 Ultra
Motherboard ASUS ROG Strix Z490-E 
CPU Intel Core i7-10700K 
Memory Ripjaws V Series 32GB DDR4 3600MHz CL16 Dual Channel Kit (4 x 16GB)
Heatsink Corsair iCUE H115i RGB PRO XT
PSU: EVGA SuperNOVA 1000 G5, 80 Plus Gold 1000W
 
Updated Bios
Crashes in Chrome watching YouTube and in some games. But mainly Chrome
Screen goes black; PC does a post beep; hangs. Then either sits till I reboot; or it boots into the bios.
 
Event log throws the following error most of the time.
BugcheckCode 278 
 
PSU has 4 ports for PCIe power. 
I'm using ports 1-3, each on its own cable.
 
Updated bios, Windows, ran DDU
Turned off OC switch on card
Updated the OC bios on card
 
can't think of anything else. 
 
Oddly it seems more stable running benchmarks then watching YouTube.
 
Any known issues with the PSU: EVGA SuperNOVA 1000 G5, 80 Plus Gold 1000W PSU?
 
I can attach any logs needed; Just let me know what log and how to get it :D
 
Do you think it could be the power cable to my UPS from the PC, was too lazy to swap it out with the new 100W psu cable ? Seems unlikely tho. 

@PtPhan
 
i have this problem right now with my old RM1000x corsair psu .... i have an evga rtx 3090 ftw3 ultra / ryzen 9 5950x . random reboot when my computer is idle , or sometime in game it seem to become laggy as hell , i think my power supply is dying.... thats probably the problem

Already been said, but its definitely a PSU capacity issue.

Hmnn after setting
 
NVidia control panel to Prefer Max Performance
 
It seems ok now; but it has been fairly random before; working fine for a day then crashing a lot, then working fine for a while etc; I cannot say 100% it fixed it or not

I just buit my new system and waiting for the EVGA 3080 FTW3, noticed this issues and just wanted to clarify if I will have the same problem with my Seasonic GX 750W? The list says it's ok, just want to be on the safe side. Thanks.