Info EVGA 3080

knght990

Member
Jun 3, 2006
158
8
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Got a EGVA 3080 FTW3 LHR from the EVGA que last month. 14ish Months on the waiting list and queue transferred from the regular 3080.
Joined Queue 12-15-2020 and was notified available 01-26-2022
Now I need a new power supply, some of the benchmarking software causes my computer to reboot.
 
Last edited:

aigomorla

Cases and Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
19,497
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Its called transient load spikes..

Yes a lot of us had this problem when we first got our gen 3080/3090's.

I like EVGA SuperNovas, preferably somewhere between 1kw-1.2kw is a tad on overkill but your system will only draw the amount of power required, and you will not lose out on lower end efficacy with a video card like that.
 

gdansk

Senior member
Feb 8, 2011
974
678
136
I had a 1000 watt SeaSonic Titanium power supply and it had problems with my 3080.

What power supply do you have, for reference
 

gdansk

Senior member
Feb 8, 2011
974
678
136
i had that same exact psu.
I ended up getting a supernova 1.2kw p2
Yeah, it is apparently a known defect. I swapped it with a Corsair HX1000 and that works fine.

When I complained to SeaSonic about the problem they sent me a replacement but I never tested it with the 3080.
 

Markfw

CPU Moderator, VC&G Moderator, Elite Member
Super Moderator
May 16, 2002
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I have an EVGA 850 powering a 3080TI (400 watt) and a 5950x
 

amenx

Platinum Member
Dec 17, 2004
2,987
748
136
I know someone with a 750w unit powering a 3090 and had no complaints. I also remember Seasonic a few years ago had odd issues with certain GPUs but was resolved with updates to their PSUs. Its not the wattage, but odd quirks or behavior of some PSUs with certain cards.
 

Aapje

Senior member
Mar 21, 2022
247
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Its not the wattage, but odd quirks or behavior of some PSUs with certain cards.
Modern video cards can have excessive spikes that far exceed the power limit. 3090's were measured with 550 watt spikes. PSU's have always had capacitors to dampen these spikes, but I think that modern PSU's have increased the size of those to deal with modern GPU's.

But also, the rated wattage for a PSU isn't actually the real limit. Some can supply quite a bit more than that before they trip the protection and shut down. In some cases, the protection is even too low for the actual capabilities of the PSU, like the Gigabyte PSUs that Gamers Nexus was able to turn into a magic smoke dispenser.
 

DeathReborn

Platinum Member
Oct 11, 2005
2,471
394
126
Modern video cards can have excessive spikes that far exceed the power limit. 3090's were measured with 550 watt spikes. PSU's have always had capacitors to dampen these spikes, but I think that modern PSU's have increased the size of those to deal with modern GPU's.

But also, the rated wattage for a PSU isn't actually the real limit. Some can supply quite a bit more than that before they trip the protection and shut down. In some cases, the protection is even too low for the actual capabilities of the PSU, like the Gigabyte PSUs that Gamers Nexus was able to turn into a magic smoke dispenser.
TPU measured 545W 20ms spike on a ASUS 3090Ti Strix LC (still lower than the 619W 6900XT), I'd probably say allow 600W for spikes.

 

KentState

Diamond Member
Oct 19, 2001
8,397
392
126
I blew the new 650w PSU in a NZXT H1 with a 3080 and 10700k. The unit was a rebranded Seasonic PSU. However, the 1kw Seasonic Prime Platinum has powered a 3090 w/5950x since launch. The 3090 is now paired with a 3970x mining all day on an EVGA 1kw G3. I believe the problematic Seasonic units were more recent to when Ampere launch and mine is from 2018.
 

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