va02stephen
Audioboxer
va02stephen
Audioboxer
Flashing this BIOS on your 3080 FTW3 LHR will allow it to draw up to 500w https://www.techpowerup.com/vgabios/236669/msi-rtx3080-10240-210518-2
But it achieves this by essentially breaking the power draw accuracy and allowing the pins to basically pull up the max of what they can. Been running it for months now. As for how I measured what I was drawing, by doing calculations from the HX1000i power draw readings. If someone has clamps they would be able to do it more accurately.
If you have good watercooling, it's good for getting some more performance. At 3440x1440 quite a few games end up power limited even just trying to keep the core clock around 2025~2050. Now most games can sustain 2100 for me.
Ultimately, it's a BIOS issue from EVGA, I've proven the card can sustain a higher power draw. Why they haven't fixed it, who knows, they're completely ignoring the issue.
I had thought about uploading this vbios but I think it will void any warranty you have ☹️ otherwise I would flash it in a heartbeat if it didn't lose the warranty
Unlikely, the card has a dual BIOS anyway.
I had a 2080Ti RMA'd that was running a 2080Ti FTW3 BIOS to draw more power whilst it was a 2 pin reference PCB. Not only that, it was the blower variant that could never sustain a high power draw lol (I was watercooling it). This card died so I didn't even get a chance to flash its only BIOS back to stock.
All I would suggest is anyone has good cooling before trying to play around with a BIOS that can draw up to that power. Sure, the power draw slider still works, but the power output figures are off so it's a bit harder to calculate actual draw.
For reference, it seems the highest power draw figure I see in software is about 370~380w, that, at least for me, seems to be somewhere in the region of 470~500w.
It would be interesting if someone with clamps experimented with that BIOS for a direct reading. I shouldn't be that far off though, calculating off the power supply digital reading isn't too difficult to do if you know your CPU power draw then just add a little extra on top for fans/other components. My power supply has been drawing in excess of 700w at times, and this is with a 5950x running at a PPT of 162w max.
Most games on Ultra are probably topping out at around 450w max, it's some when you have RTing on, or as I've noticed if I use DSR or a higher internal resolution somehow, that tends to bump up the power draw a bit more.
i must admit i am so tempted to flash this bios i have one concern tho, do we know what each 8 pin is pulling as i know on the evga board they are fused and would hate to pop a fuse if say one pulls 250w (highly unlikely i guess), its just so annoying as this could literally be easily fixed within probably half an hour with a quick update to there bios.
Hard to say without a clamp when the power reporting figures are broken
Here is a Plague Tale Innocence running, it's a very GPU heavy game, hits max reading of high 370w, and I've seen it at 381w once. My OC
GPU tends to happily sit at 2100/11000 at 1.062v when not power limited. Frequency bounces a bit in this game, but part of that is being at the 144FPS cap often. In demanding games, if my power is up at around 380w per software readings the frequency sometimes bumps down from 2100 to 2055~2070. Yes, even with this BIOS it's still possible to get power limited on a 3080 lmao.
As per HWINFO screenshot, 2nd input gets hit hard, showing 176w. Going on my power supply calculations, the 2nd pin is probably closer to 200~210w. Without a proper way to measure I am unsure though of the exact figures.
But the power supply power in has hit 685w max above. Basically, the game is likely pulling somewhere in the region to 430w to 500w on the GPU in demanding scenes. The CPU power draw is only around 120~135w. In games where my CPU power draw gets up to 150w+, I've seen power supply spikes into 700w+.
I've been running the BIOS for months with no issues, but I am watercooled, even an active backplate. I know it doesn't make much difference for the 3080, but I got it cheap and added the block for aesthetics. Point being though, 46 degrees on my core is
hot, all things considered. For anything drawing 200~300w I can see a core of 38~40. When you go over 400w it just exponentially increases heat.
I'd say good luck on air cooling. Though if you don't push the core/memory frequency as hard as me, you won't need as high a voltage. From my findings OCing this card, going above 2040mhz on the core really ramps up the need for voltage if you want to be stable in something like Metro Exodus. Pretty much the game to run to test the stability of your GPU overclock!