will the 3080 ti FTW3 get XOC VBIOs to 500 watts?

I've just tried the 450w (+118%) BIOS for RTX 3080 FTW3 Ultra and my card will never exceed 405w on full load, either playing games (SotTR, ACV, CP 2077) or benchmarking (3DMark Port Royale, Superposition 1080 Extreme, etc). Is there a way to push the card far enough to let it go all the way to 450w?

OC Are +180 between 1.000v and 1.056v (custom curve in AB), +1700Mhz on memory and stable. Temperatures are below 65C, 100% fan speed on stock cooler. When I look in GPU-Z, I PerfCap Pwr... Any help would be appreciated!!

Andrew_WOT
It's a known issue, one of the PCi-E connectors is not a true 8 pin.
https://forums.evga.com/FindPost/3340987
3080Ti though and I believe 3090 are okay.

Mmmm I don't see any tangible infos here :/

Jacob at EVGA just pointed me to where the new biosis were for the LHR cards and I was able to update mine. But yeah the most I’ve seen it draw is 414 watts so far.

Andrew_WOT

Celtcry

Andrew_WOT
It's a known issue, one of the PCi-E connectors is not a true 8 pin.
https://forums.evga.com/FindPost/3340987
3080Ti though and I believe 3090 are okay.

Mmmm I don't see any tangible infos here :/

Check highlighted by link post.

Anyone actually getting these 450W with this BIOS, the max I can see on 3080 FTW3 Hybrid is 400W with 3rd PCI-e only delivering 65-70W.

Based on this post, it's physical limitation of the 3rd pin design. But how I could see some people actually hitting 450 magic number, some clarification from EVGA would be very appreciated.

It should be more documented? I don't see so much thread about it.

Swash87
So have eVGA really just glossed over this unbalanced power draw issue, offered some sort of valid RMA process or actually actively working on it?

Sucks, seems like no end to little issues with eVGA lately, too think pre-3080 release i was actually super excited to get my hands on an eVGA product again....

While some people truely have unbalanced power draw, others aren't loading up their cards hard enough to get the full power.  I can get 445w average in Furmark.  Gaming is usually about 410-425w with a high load.  It's enough power to keep the card at 2,055-2,115mhz at 1.075-1.1V vcore in 4K gaming, if you can keep it cool, say under 70C.

kevinc313

Swash87
So have eVGA really just glossed over this unbalanced power draw issue, offered some sort of valid RMA process or actually actively working on it?

Sucks, seems like no end to little issues with eVGA lately, too think pre-3080 release i was actually super excited to get my hands on an eVGA product again....

While some people truely have unbalanced power draw, others aren't loading up their cards hard enough to get the full power.  I can get 445w average in Furmark.  Gaming is usually about 410-425w with a high load.  It's enough power to keep the card at 2,055-2,115mhz at 1.075-1.1V vcore in 4K gaming, if you can keep it cool, say under 70C.

Mmm yeah idk my readings are all over the place
Under furmark specifically it won't push past 100 power limit (literally sits on 100% and has a "pwr" cap reason with the slider pushed to 118>450w bios) with power draw of 40w PCI-e, and ~125>155>65w which lands me around 385w on a 450w bios.
Thats with the fans on 100% and core sitting around 68 degree's, +130 clock and a 80% voltage slider (only hitting 1650mhz at 775mv)

Go to something a little more dynamic, like superposition and it'll suck more voltage (seems a bit backwards? i thought furmark was the power sucker), it'll go a bit over 100%, seems to top out at 2050mhz/1070mv but that still lands the power draw around 400-410w and the 4 power loads are still wildly uneven.....
I've got no doubt it'd be able to pull that extra 50-70w if whatever was triggering the pwr limit was fixed (perhaps because one of the PCI connectors is hitting 150w wheres the others are 60-70 and 110-120w? rather than all equally pulling a collective lower amount) but it all seems unbalanced, unlike other cards ive seen in reviews and such for 3080 FTW's where all 3 PCI-e connectors are within a couple watts of each other and they're near or hitting that 450w power limit.

I always wonder if its actually drawing the correct wattage its just not being reported correctly but the onboard sensors (considering when you shunt mod cards they never report accurately again, perhaps theres something there messing up the signals/bad joints/bad resistors/etc....be good if someone with the correct interfacing gear, ie LTT/GN/Etc, could investigate what its actually drawing vs what its reporting) or if it truely is a dodgy regulator onboard thats limiting the cards/unfixable hardware problem (my cards a new gen with black lips, only had it for a few months so if there was a running change you expect this card to have it)

Is it the same download link for the xoc bios in the beginning of this thread for the kl versions?

Swash87

kevinc313

Swash87
So have eVGA really just glossed over this unbalanced power draw issue, offered some sort of valid RMA process or actually actively working on it?

Sucks, seems like no end to little issues with eVGA lately, too think pre-3080 release i was actually super excited to get my hands on an eVGA product again....

While some people truely have unbalanced power draw, others aren't loading up their cards hard enough to get the full power.  I can get 445w average in Furmark.  Gaming is usually about 410-425w with a high load.  It's enough power to keep the card at 2,055-2,115mhz at 1.075-1.1V vcore in 4K gaming, if you can keep it cool, say under 70C.

Mmm yeah idk my readings are all over the place
Under furmark specifically it won't push past 100 power limit (literally sits on 100% and has a "pwr" cap reason with the slider pushed to 118>450w bios) with power draw of 40w PCI-e, and ~125>155>65w which lands me around 385w on a 450w bios.
Thats with the fans on 100% and core sitting around 68 degree's, +130 clock and a 80% voltage slider (only hitting 1650mhz at 775mv)

Go to something a little more dynamic, like superposition and it'll suck more voltage (seems a bit backwards? i thought furmark was the power sucker), it'll go a bit over 100%, seems to top out at 2050mhz/1070mv but that still lands the power draw around 400-410w and the 4 power loads are still wildly uneven.....
I've got no doubt it'd be able to pull that extra 50-70w if whatever was triggering the pwr limit was fixed (perhaps because one of the PCI connectors is hitting 150w wheres the others are 60-70 and 110-120w? rather than all equally pulling a collective lower amount) but it all seems unbalanced, unlike other cards ive seen in reviews and such for 3080 FTW's where all 3 PCI-e connectors are within a couple watts of each other and they're near or hitting that 450w power limit.

I always wonder if its actually drawing the correct wattage its just not being reported correctly but the onboard sensors (considering when you shunt mod cards they never report accurately again, perhaps theres something there messing up the signals/bad joints/bad resistors/etc....be good if someone with the correct interfacing gear, ie LTT/GN/Etc, could investigate what its actually drawing vs what its reporting) or if it truely is a dodgy regulator onboard thats limiting the cards/unfixable hardware problem (my cards a new gen with black lips, only had it for a few months so if there was a running change you expect this card to have it)

You can try Furmark with a +90 or +120 OC and 2X MSAA.  Also use the latest version of Precision X1.  But it sounds like you could have a card with the low 3rd 8-pin power.

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:
 

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... 

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.

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.

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

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.