EVGA GTX 3080 Ti FTW3
Seasonic Titanium 1000W (Two weeks short of 5 years old.)
CPU i7 6700K Stock (Was 4.8GHz)
12 Corsair ML Fans at 30%
1 Ehiem Pump
UPS CyberPower 1500PFCLCD says it is only pulling about 520W
 
I have ran every test I can think of, OCCT Power for 30 minutes. Aida64 Stability tests. Nothing makes it reboot. But at random while playing FFXIV the computer will die and reboot.
I originally had CableMod cables that had the 8 pin pigtail. So only was using two cables for the three plugs. So I bought three without. Still the computer would shut off, and restart at random while gaming. Right now I have the stock PSU cables hooked up, although they are built the same as my new CableMod's. So expecting zero difference.
The GPU is overclocked, but I have never had an overclocked card reboot a computer, just kill the driver and have to restart the game. (Mainly FFXIV)
+500 Mem
+125 Core
Voltage and Target sliders maxed. Nothing crazy IMO. Temps about 60C at 100% Fan speed.
 
I got a couple more things to try, three actually.
Remove GPU OC.
Swap out for a EVGA 1000W G2 I didn't like because the fan was louder than I liked.
Wait till I get my Heatkiller waterblocks for GPU to rebuild into my X570 and 5900X. (About 3 weeks out still.)
 
With all that said, my board is dying, ran it hard, CPU delid @ 4.8GHZ for it's entire life at 1.435v. When I swapped 1070 SLI for the 3080 Ti I lost PCIe lanes and slots. Not sure what happened, so the card is only at 3.0 @ 4x and not 16x.
 
Is it the PSU? Is it the card? Or maybe my dying board. I don't want to swap in my new hardware yet till I get my new blocks for the GPU.
Thoughts, ideas?

As for the x4 issue. I tried both GTX1070 cards separately and it still happened. Put both cards back in for SLI and only the second card would register, main slot was dead with a second card. Still need to remount the air cooler to sell later, so may try it again. I'm pretty sure it's the board or CPU.
 
Will do the PSU when I eliminate the stock cables and over clock.
I'm leaning towards an RMA on the PSU though. Can just take a few days to get this rest of this figured out. It's so random when it happens.

Rebooted with stock PCIe cables, and reboot with removed GPU OC.
Unplugged everything and have the EVGA PSU sitting outside the case with the cables running through the side for testing. If everything stays running through the rest of the weekend. Looks like an RMA with Seasonic.

Michapolys
Yeah, Seasonic PSUs have issues with high transient loads. One would think that they would have fixed it after all these years, but it does not seem to be the case.

So you are thinking I will have the same issue even with an RMA? Kind of bumming if that is the case, because I quit using the EVGA PSU because the fan on the PSU was louder than the rest of everything else in my computer and didn't like it. The fan on my Seasonic was quiet, never could hear it running. If I hit the switch to have it off unless needed, you could hear it spin up on occasion but then slow down. The unit never got that hot to spin up past it's base RPM.
 
Running now with the EVGA PSU things are looking promising.

Michapolys
Supposedly they fixed it. But they are telling this for a few years now, so I do not know. I suggest to keep using the EVGA unit if it works, or look for another PSU if you really mind the noise.

Submitted for an RMA, so once I get the new unit I'll try it. If not, I'll hook up the EVGA unit and just deal with the fan noise.

talon951
I wss going to say try replacing your borked mobo, but after rereading your post it's most likely the PSU.

Why? I have a Seasonic Gx-1000 that I replaced with a Corsair RM1000X. Bizarrely the Seasonic would hit OCP running the FFXIV benchmark. All games were fine otherwise. I did also hit OCP in the 3dmark Firestrike benchmark too though. You might try running that also as a test.

I blamed that on running the KP XOC bios, but right now I'm wondering if that had anything to do with it. Well ok, it didn't help.

Yep psu.......change it out for new decent one and I'll bet your golden!

talon951

rjbarker

talon951
I wss going to say try replacing your borked mobo, but after rereading your post it's most likely the PSU.

Why? I have a Seasonic Gx-1000 that I replaced with a Corsair RM1000X. Bizarrely the Seasonic would hit OCP running the FFXIV benchmark. All games were fine otherwise. I did also hit OCP in the 3dmark Firestrike benchmark too though. You might try running that also as a test.

I blamed that on running the KP XOC bios, but right now I'm wondering if that had anything to do with it. Well ok, it didn't help.

Yep psu.......change it out for new decent one and I'll bet your golden!

Yea I think some PSUs are too sensitive to the 30 series power spikes as even limiting to 500w would still result in my machine shutting off.

I'm sure there are plenty of good choices, although the Corsair RM series definitely works. Even the RM850x in my 3080ti machine can handle the Galax 1kw bios at 600w+.

I have seen more than the usual number of "shut downs while gaming" solved with new psu's this round of Cards for sure....think you nailed it with the power spikes......my good old (4.5 yr) AX1600i still rocking along ;)

Sajin
My SSR-1300PD is bulletproof. I ran over 600+ watts just on my 3090 kingpin alone without a problem.

If only that was the case for everyone else...

I had a similar issue with the seasonic 1000W titanium.
High loads (gaming or benchmarks) would cause the hard power off / reboot.  assumed it was a overly sensitive OCP.
 
Replaced it with a EVGA 1600W titanium, and never saw the issue again.

rjbarker

travisalders
I had a similar issue with the seasonic 1000W titanium.
High loads (gaming or benchmarks) would cause the hard power off / reboot.  assumed it was a overly sensitive OCP.
 
Replaced it with a EVGA 1600W titanium, and never saw the issue again.

Good one....although you will have a few rookies chime in with "my God thats over-kill" (like my AX1600i).....you will likely not be replacing the psu for many many years....a psu is truly the one component that  can be considered "future-proof".....my AX1600i is now on year 5....2 different re-builds in that time.

The only down-side is a decrease in low-load efficiency if you purchase a non-Titanium rated PSU way bigger than what you need.

If I "only" had a 800 watt load, if I could only afford a 1000 watt Titanium or a 1200 watt Gold (if in the same price range, and a 1200 watt Titanium was above my budget), I would buy the 1000 watt Titanium for the low-load efficiency.

I upgraded from a 1200 gold to a 600 watt titanium, and my power consumption browsing the net dropped 10 watts.

Have an advance RMA going with Seasonic and should have replacement by Friday. Super easy and quick. Filled out form Sat 8PM, had a return email on approval with two options Sunday night at 7PM. Opted for advance RMA with $75 return deposit through PayPal. 4:30AM email with update stating deposit was received. Had shipping notice today at 4:50PM. That has to be the quickest easiest advance RMA, let alone regular RMA I ever had.
 
If PSU doesn't work out in the end, I'll stick with the G2 or guess I'll pick up an EVGA 1000 T2. Already have the individually sleeved cables from EVGA for the G2, and they work with the T2. I'll just deal with the fan noise of the dual ball bearing fan compared to the fluid dynamic bearing from the Seasonic. I did build it to be silent though. Oh well.
 
As for buying the largest PSU possible. No. Like mentioned, efficiency is rated at a certain load. My computer was roughly at the 50% load which the Seasonic PSU calls for to be 94% efficient.
 
I'll update Sat on how things shake out.

Keep us posted.

Good to hear!

EVGA went to Seasonic for the G6, they made some improvements for OCP but transient response is still poor...
 
https://www.tomshardware.com/reviews/evga-supernova-1000-g6-power-supply-review/6
 
The Super Flower based G2/G3 were the best EVGA PSUs.

What is the part # of your psu? SSR-1000TR?