tomit12

the1320god68
my max in furmark is 414w. Average in games is about 375w with temps at 60c. 4K gaming and overclocked. Not sure how to load it harder.

This is basically the same situation for me. 1000w EVGA gold PSU, so it shouldn't be a power issue. I've also tried flipping around cables and whatnot. I haven't found a way yet to make the card even consider pulling 450w, and the 'perfcap reason' is always 'pwr'.
 
Edit - Forgot to add, no splitters or Y cables; each socket is powered by an individual cable straight from the power supply. The rest of my PC is stock settings; watercooled 3900x (using whichever NZXT has the long 3 fan radiator, forgot which), 2 NVME, 1 HDD, 32GB DDR 3600, ASUS TUF X570 Plus Gaming Wifi motherboard... pretty standard stuff.
 
Bios is the REBAR OC 450W applied to the OC switch side, though the weird 3rd rail thing happens on every bios, up to and including the normal switch stock one. Temps never break about 68c, and I use the aggressive fan curve because I don't really care about the noise. The card is about a month old, so no red lipstick, and it's also not an LHR variant.
 
Here is my PC running Furmark, with the sensor data and Precision settings:
 

This is exactly like mine, 8pin #1 and #2 draw upwards of 150w (though Pin #2 is always about 20w higher) and pin #3 is about half of Pin #1 (so when 1 is at 120w, its at 60w).
Means its always hitting the PWR limit and the best i can do is about 400-410w as a "peak" reading, usually more like 380-390w. 

Then you see like KevinC313's card thats pulling over 100w on all 3 8pins, still a little unbalanced still within reason, but clearly hitting or close too the 450w bios limit :|

I don't think any amount of extra cooling or whatnot will fix this issue. My cards a later "black lips" model, unknown exactly when it was made but i got it on the 26/4/2021, so its gotta be within a couple months of that, kinda sad that its even an issue on newer cards if they've been aware of it for so long....

Yes same happens here, as long as I get ~400w it will always power limit. Why is no one from EVGA explaining the real issue? My card can do 2100@1000mv, but it remains the power problem (3dr connector is always half the power of first one, PSU EVGA 1300 G2). Im still naive enough to think that there could be a firmware fix, but this is definetly a hardware issue... 

I'm trying to get a hold of a DC current clamp meter so i can throw it over the power wires of each connector and actually see whats being drawn (More out of interest than anything else)

I'm interested in whether or not Pin #2 is being over-reported (ie it says its pulling 150, thus hitting the firmware soft limit and limiting the card but not actually pulling 150w) or if it is actually drawing full power there and #3 is under performing like reported.

Even cards drawing the correct amount, pin #3 is lower than 1 and 2, its concievable that pin #2's reporting is over-shot.
Regardless, it doesn't change anything at all, eVGA is just too silent on the issue! 

Swash87
I'm trying to get a hold of a DC current clamp meter so i can throw it over the power wires of each connector and actually see whats being drawn (More out of interest than anything else)

I'm interested in whether or not Pin #2 is being over-reported (ie it says its pulling 150, thus hitting the firmware soft limit and limiting the card but not actually pulling 150w) or if it is actually drawing full power there and #3 is under performing like reported.

Even cards drawing the correct amount, pin #3 is lower than 1 and 2, its concievable that pin #2's reporting is over-shot.
Regardless, it doesn't change anything at all, eVGA is just too silent on the issue! 

Ok give an update on this after you test please.

where is the download for .32 bios for the 3080 ftw3 ultra?
 
thanks
 
and yes a shame about the power issue

RE: 400w power limit with 450w BIOS: https://forums.evga.com/FindPost/3437884

MartinUKIt appears this may well be a feature, as opposed to a bug. Seems that at some point, even for the 3080 FTW3, EVGA switched from the UP9511 voltage controller to the same Onsemi NCP81610 used in the 3090 FTW3 1.0 cards and the 3080Ti. (The power stages also changed from AOZ power stages to Onsemi, same as the 3080Ti)
 
The controller is mentioned in this 3080 FTW3 review from March:
EVGA RTX 3080 XC3 en FTW3 Review - Tweakers
with a picture of it on the board:
2004196198.jpeg (5292×3814) (tweakers.net)
 
It seems that along with this switch they tightened up the power balancing to reduce the PCI-E slot draw, and to limit the 8-pin #3 power draw, which stops the cards from being able to pull more than 400w, but also presumably stops them dying randomly (since that was the fix for the 3090's to stop them dying).
 
It makes sense they switched to use the same components on all the boards, for manufacturing/sourcing reasons. 50w is a pretty heavy price to pay, but I suppose its better than your card blowing up.

Hi guys, is 2000-2050mhz a good result for 3080 ftw3 ultra with xoc bios? Card is on stock cooler with relatively good airflow in the case (side panel has a 120 fan blowing air towards the card) - temps of card max out at around 80C

Care to share where that is? I cant find it anywhere.

I'm trying to install the 450w Bios on a 10g-p5-3897-kl card but the bios loader says no acceptable cards found. Is it because it is a KL instead of KR?

psokerka
I'm trying to install the 450w Bios on a 10g-p5-3897-kl card but the bios loader says no acceptable cards found. Is it because it is a KL instead of KR?

Guess so.