Dabadger84

SAVIAR
Yes you could work with these clock speeds and think everything is OK but unfortunately it is not (if you ever seen Buildzoid videos about this matter). I guess almost every 3080 FTW3 Ultra has the same behaviour about it, let me say identical. Please keep your Core as +130 and lower your vRAM 400, then increase it as 500-600-.... until you notice a drop and here is your limit. Don't try to push it more over because it will be useless (such a shame). Even if you totaly solve TDP issue you will have this limit. Your system won't crash and you will see your vRAM is higher but it isn't (your feed for vRAM) stable anymore so your score will less then lower vRAM values.

That's the thing though, I started at +200, then +500, then +800 on the vRAM, score went up every time.  That's why I'm so confused as to why the score went down from running the Core & vRAM OC at the same time... I'll fiddle with it more tonight perhaps.
 
I did get a new personal best on pretty much all the benchmarks with some spicy meatballs settings though.  CPU @ 5GHz, RAM @ 4GHz CL17 (which I tested as being "stable" but we all know how RAM OCing works, it's stable until it isn't sometimes) & the 3080 @ +130/+800.  Every benchmark scored higher than my previous bests:
 
Port Royal 12737: 
TimeSpy Extreme 8932: 
TimeSpy 18194: 
FireStrike Ultra 11981: 
FireStrike Extreme 20992:  (I remember with 10000 in extreme was considered insanely good, that wasn't so long ago lol)
FireStrike 31878:  

Dabadger84
Yeah the UPS is the problem.  Plug in to the "SURGE ONLY" plugs on it, that is insufficient wattage to handle your entire system.  Plugged in to that you'll at least still have surge protection, which is very important.
 
You should be completely fine on the 450W BIOS by the way.  What's probably happening is, if your CPU is OCed at all, your system as a whole is probably drawing in the 600-700W range, which even the best PSUs would be pulling around 650-750W from the wall, so that's why it tripped your UPS' system up.
 
The Power draw I listed is the maximum "safe" wattage you can draw from each plug, not what the card will actually draw necessarily.
You can see what your card is (roughly) drawing from each thing by using GPUz, here's an example of what it looks like (on the right):
 

 
With my card @ +130MHz Core, +800 vRAM, I was seeing 52.4W from the PCIe slot, 124+131+126W from the 8-Pins, total board draw was 434W, but that's on Port Royal.  I did see up to about 460W in one test, I'll have to find which one it was...
 
Edit: To be clear, your PSU itself is NOT the issue most likely, that is a quality Power Supply unit.  The Backup Power is the issue that's causing the blink-out for sure, insufficient wattage to handle the draw of your system's full bore.
 
Edit 2: this is the UPS I'm using, I've never had it "blink out" on me yet, despite my system drawing in to the 1100+W range when I was running 2x Titan Xp's in SLi a few years ago, I got it on sale during Holiday Sales about 4 years ago for somethin' like $109: https://smile.amazon.com/...i-Tower/dp/B00429N19W/

Dabadger84
 
 
Well when it comes down to it, that doesn't actually matter unless you're going over the rating of a single plug.  Is the PSU you got multi rail or single rail?  If it's single rail, it should be completely fine.
Are you on the Beta XOC BIOS or the standard OC bios?  I think I saw similar power-spread issues on the stock BIOS & the XOC one is the one used in the screencap above, that leveled it out more.

Dabadger84

SAVIAR
Yes you could work with these clock speeds and think everything is OK but unfortunately it is not (if you ever seen Buildzoid videos about this matter). I guess almost every 3080 FTW3 Ultra has the same behaviour about it, let me say identical. Please keep your Core as +130 and lower your vRAM 400, then increase it as 500-600-.... until you notice a drop and here is your limit. Don't try to push it more over because it will be useless (such a shame). Even if you totaly solve TDP issue you will have this limit. Your system won't crash and you will see your vRAM is higher but it isn't (your feed for vRAM) stable anymore so your score will less then lower vRAM values.

That's the thing though, I started at +200, then +500, then +800 on the vRAM, score went up every time.  That's why I'm so confused as to why the score went down from running the Core & vRAM OC at the same time... I'll fiddle with it more tonight perhaps.
 
I did get a new personal best on pretty much all the benchmarks with some spicy meatballs settings though.  CPU @ 5GHz, RAM @ 4GHz CL17 (which I tested as being "stable" but we all know how RAM OCing works, it's stable until it isn't sometimes) & the 3080 @ +130/+800.  Every benchmark scored higher than my previous bests:
 
Port Royal 12737: 
TimeSpy Extreme 8932: 
TimeSpy 18194: 
FireStrike Ultra 11981: 
FireStrike Extreme 20992:  (I remember with 10000 in extreme was considered insanely good, that wasn't so long ago lol)
FireStrike 31878:  

Dabadger84
Follow the procedure listed at the beginning of the thread.
 
If you put one in the wrong spot, it's no big deal, you can reflash with the utility provided.  I would correct it so the OC BIOS is on the OC switch, just so you don't forget later on that it's "backwards".