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3080 FTW3 Ultra help !!

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FedericoUY
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Tuesday, August 17, 2021 3:22 AM (permalink)
I'm having a hard time with this VGA, and hope anyone help me clarify some things.
 
-First: As I flash in the OC position the 450W bios, gpu-z will correctly show in 'advanced' tab the expected maximum power limit of 118%. If I switch back to 'normal' position, the bios version will keep showing maximum power limit of 118%, and all this checked via gpu-z and afterburner (allows up to that power limit). If I re flash normal bios (re bar original bios), it will come back to 105%, but on both positions. It's like only vbios version switches between 94.02.42.80.16 and 94.02.42.80.31. The rest behaves the same in any position of the bios switch. Am I missing something, or this is not a dual BIOS card?
Edit: After a couple of restarts, it will eventually show up the power limit info in both msi ab and gpu-z.
 
-Second: Power limit thing discussed all over. Having the 450w OC bios flashed, I really find hard to believe, that having a card that behaves excellent in low voltages (2010 to 2025 stable at 925mv), it will, at this speed even trigger the power limit. I am undervolting my card and just making a light overclock, and testing with a high demand app/game like Quake II RTX, it will eventually trigger power limit even sub 400W. When diong a little more overclock to 2055mhz at 950mv, the power limit is constant, and the card won't pass the 402w mark.
Why is this happening? What is the real technical explanation? I know some people has their ideas, and I've been talking to some guys here, but isn't now a good time to someone from EVGA come and explain this behaviour? @jacob?
Let me clarify the temp of this card is always sub 62c. I'm attaching proof here:
 
2010mhz, 925mv, 118% pl :

 
2055mhz, 950mv, 118% pl:

 
Some of us had a real hard time to get these cards (and some paid astronomical money to get them), and on top of it, we are facing this troubles, making this card overclock potential almost inexistent, I have a FTW3 Ultra card, I would expect to see some more fun overclocking and checking its potential.
 
Some explanations may not be as clear as some would expect, if so, please tell me so I can correct (spanish lang originally).
 
Thanks in advance.
post edited by FedericoUY - Thursday, August 19, 2021 12:54 AM
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    FedericoUY
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    Re: 3080 FTW3 Ultra help !! Wednesday, August 18, 2021 8:31 PM (permalink)
    Anyone that has the same problem as my 'second' issue? Any known solutions?
    #2
    arestavo
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    Re: 3080 FTW3 Ultra help !! Wednesday, August 18, 2021 8:55 PM (permalink)
    Reading the first part - a VBIOS is similar to a BIOS - it requires a computer restart to load it up.

    As to the second part, it sounds a lot like the 3090 FTW3 power balance issue where the PCIE slot would draw too much power and cause a power limit flag even at/under 400W. However, your PCIE slot power draw seems to be good, maxing out at 47W or so? So perhaps the VRAM is hitting the power limit causing that flag? Perhaps you can confirm that it's the VRAM by underclocking the VRAM by 500 or 1000 MHz.
    post edited by arestavo - Wednesday, August 18, 2021 9:08 PM
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    FedericoUY
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    Re: 3080 FTW3 Ultra help !! Thursday, August 19, 2021 1:13 PM (permalink)
    arestavo
    Reading the first part - a VBIOS is similar to a BIOS - it requires a computer restart to load it up.

    As to the second part, it sounds a lot like the 3090 FTW3 power balance issue where the PCIE slot would draw too much power and cause a power limit flag even at/under 400W. However, your PCIE slot power draw seems to be good, maxing out at 47W or so? So perhaps the VRAM is hitting the power limit causing that flag? Perhaps you can confirm that it's the VRAM by underclocking the VRAM by 500 or 1000 MHz.

    Hello. Thanks for the response. It will eventually do the same, even at -500 of ram (9000mhz effective) and 2055mhz core.
    post edited by FedericoUY - Thursday, August 19, 2021 1:29 PM
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    arestavo
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    Re: 3080 FTW3 Ultra help !! Thursday, August 19, 2021 1:17 PM (permalink)
    It takes longer to show the power flag than if you didn't underclock the VRAM?
    #5
    FedericoUY
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    Re: 3080 FTW3 Ultra help !! Thursday, August 19, 2021 1:29 PM (permalink)
    Yes maybe a little longer, yes... Once it starts power limiting, it does it all the time. Does that tells you something?
    #6
    arestavo
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    Re: 3080 FTW3 Ultra help !! Thursday, August 19, 2021 5:40 PM (permalink)
    Not really. Maybe someone else will know?
    #7
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