EVGA

EVGA, what's with the subpar power limits?

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lantern48
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Re: EVGA, what's with the subpar power limits? 2020/09/30 16:38:27 (permalink)
You should've bought a FTW3.

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#31
gsrcrxsi
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Re: EVGA, what's with the subpar power limits? 2020/09/30 21:56:00 (permalink)
HeavyHemi
Wonderful. How about we stick with the card under discussion a 3090. I agree a 3rd PCIe imput would be less useful on a 3080, but that isn't the topic.  It always a bit amusing seeing folks opining about completely blowing past the PCIe specs as if they are irrelevant. Lastly, the limit on a PCIe plug is limited by wire gauge and what the PSU can supply. The HARD limits are imposed by the DEVICE not the cables  powering them. An important distinction many blur.


the PCIe plug spec is based on the MINIMUM wire gauge that could be used by any PSU manufacturer. so some cheap Chinese PSU might decide to use 20awg on their PSU cables, and be at the limit for spec, but a more reputable PSU manufacturer might be using 16awg on their cables. both with the same "spec" but of course the larger cable can handle more current (and hence power).
 
this is partially why there is a descrepency between the 6-pin and 8-pin power capability even though they both have only 3 12V lines. the 6-pin was originally spec'd for a smaller wire gauge, with the option to only run two 12v lines. when the 8-pin came around it was spec'd with heavier gauge and needing all 3 12v lines. and again why the nvidia 12-pin plug handles more than 2x6-pin even though the number of 12v and ground pins are identical. theres a higher standard for wire gauge.
 
these days almost all reputable PSUs are over spec, and can handle much more power than the base connector spec. but GPU manufacturers have to stick to the hard limits for the liability aspect if someone were to use their product with a barely spec PSU. they still need to work with all products that meet the minimum spec.
 
this is why you wont ever see EVGA offer a BIOS with more than 375W on a card with only 2x 8-pin plugs (75W slot + 300W from 2x8-pin), even if your overspec PSU could handle it.

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#32
chumeniuk
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Re: EVGA, what's with the subpar power limits? 2020/10/01 03:52:27 (permalink)
kevinc313
chumeniuk
And here my 3090 FTW can't get above 13375 in Port Royal.  However, temps are much different in a case, even with fans at 100% for both the case and card.  I can only do a +120 GPU and +700 memory with the power set at 107%.  The last status that GPU-Z shows when it crashes is related to voltage which I assume means that enough power can't be delivered.  
 
http://www.3dmark.com/pr/351910




Yeah you need better temps. 
 
What PSU and the rest of the system?





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When I ran the benchmarks, I opened the outside windows to get the room to 68F (20C).  I ran the benchmark with all fans at 100%.  I also opened the side panel and pointed a large fan directly at the GPU.  I agree, better temps would help, but the card seems to run much warmer, even at idle, than my Zotac 2080 Ti with the stock shroud installed.  Maybe the card was assembled correctly and need to have the paste reapplied.  Hoping that Alphacool or EK release something soon.


#33
UnusualAttitude
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Re: EVGA, what's with the subpar power limits? 2020/10/01 07:26:43 (permalink)
I’m curious to see what i can do in a custom loop w a 10900k and a 3090

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#34
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/01 07:44:41 (permalink)
chumeniuk
kevinc313
chumeniuk
And here my 3090 FTW can't get above 13375 in Port Royal.  However, temps are much different in a case, even with fans at 100% for both the case and card.  I can only do a +120 GPU and +700 memory with the power set at 107%.  The last status that GPU-Z shows when it crashes is related to voltage which I assume means that enough power can't be delivered.  
 
http://www.3dmark.com/pr/351910




Yeah you need better temps. 
 
What PSU and the rest of the system?





AMD TR 3970X
Asus Zenith Extreme II
64GB 3600 16CL
NVMe RAID 0
Season Prime Ultra 1000w
Phantek Enthoo 719
EK 480PE + EK 360PE - just the monoblock is in the loop right now
10 x EK Vardar 120, EK Vardar 140
 
When I ran the benchmarks, I opened the outside windows to get the room to 68F (20C).  I ran the benchmark with all fans at 100%.  I also opened the side panel and pointed a large fan directly at the GPU.  I agree, better temps would help, but the card seems to run much warmer, even at idle, than my Zotac 2080 Ti with the stock shroud installed.  Maybe the card was assembled correctly and need to have the paste reapplied.  Hoping that Alphacool or EK release something soon.




Wow really nice.  Yeah I'd check it out and repaste.  I'm sure you're excited for a waterblock to become available.  There's also the 480w asus bios.
#35
drunknfoo
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Re: EVGA, what's with the subpar power limits? 2020/10/02 17:41:16 (permalink)

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#36
ty_ger07
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Re: EVGA, what's with the subpar power limits? 2020/10/02 17:46:20 (permalink)
That'll do the job!

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#37
EVGANewMember2719
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Re: EVGA, what's with the subpar power limits? 2020/10/02 17:49:22 (permalink)
Jay2Cents got a special bios from EVGA that let him raise the power limit 200%. I could use that too. 
#38
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/02 17:54:08 (permalink)
EVGANewMember2719
Jay2Cents got a special bios from EVGA that let him raise the power limit 200%. I could use that too. 




Yep the Jayz results on the last page are with an unlocked bios and AC box.
 
https://youtu.be/4Omm7-ygimc
#39
drunknfoo
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Re: EVGA, what's with the subpar power limits? 2020/10/02 18:41:32 (permalink)
ty_ger07
That'll do the job!



Would prefer to go bios route first then shunt if necessary... haven't been following the xoc streams on youtube so not sure what the cards are drawing with 'x' bios..  Whatever bios' that are out there, it sounds like the card itself can handle whatever the draw is pretty well...
 
still early, maybe we will start seeing some releases soon
#40
Axejess
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Re: EVGA, what's with the subpar power limits? 2020/10/05 12:42:30 (permalink)
EVGANewMember2719
Jay2Cents got a special bios from EVGA that let him raise the power limit 200%. I could use that too. 

Hehe would be great also the 3080 one gamernexus has.
But prob we won't see those ;) let's hope they at least give us some new update bios with same targets as asus. 3090 (480) 3080 (450)
Btw wasn't the 3090 supposed to have 440 but now has 450? And how about the 3080 then? Did it also get a +10w from 420 to 430?
Dunno if it matters that much but he every tiny watt can help haha.
 


#41
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/05 12:53:21 (permalink)
Axejess
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Jay2Cents got a special bios from EVGA that let him raise the power limit 200%. I could use that too. 

Hehe would be great also the 3080 one gamernexus has.
But prob we won't see those ;) let's hope they at least give us some new update bios with same targets as asus. 3090 (480) 3080 (450)
Btw wasn't the 3090 supposed to have 440 but now has 450? And how about the 3080 then? Did it also get a +10w from 420 to 430?
Dunno if it matters that much but he every tiny watt can help haha.
 



The 2080 Ti FTW3 power limit was 373w, or +43% over reference.  If Ampere FTW3 had the same, 3080 FTW3 -> 460w, 3090 -> 500w.  I'd be OK with that.
 
The XC3 people really got hosed though.
#42
Satsugai7
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Re: EVGA, what's with the subpar power limits? 2020/10/05 13:02:44 (permalink)
Have you tried undervolting your GPU by changing the boost curve? There have been great results with the 3090 boosting to 2k at 950mv, which significantly decreases the overall power draw. You could avoid hitting the power limit by doing this, and decrease thermals to the GPU, all while increasing efficiency and maintaining higher avg clocks. (Stock boost curve hits 2k around 1,137mV, which pulls a ton more power)
 
Here is a comparison of the same 3090 under stock clocks at max power limit vs an undervolted curve: https://imgur.com/a/oJ1jBQx
#43
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/06 13:06:28 (permalink)
3080 Strix has a 450W max power limit, 370W base.  Seems to clock better too.
#44
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/06 18:06:34 (permalink)
.......and here's the Strix 3080 bios.
 
https://www.overclock.net.../page-43#post-28645178
#45
Kupodesu
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Re: EVGA, what's with the subpar power limits? 2020/10/06 18:14:04 (permalink)
Are you implying we could use this bios?
#46
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/06 18:19:44 (permalink)
Kupodesu
Are you implying we could use this bios?



Implying?
 
No. Not implying.
#47
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/06 20:43:28 (permalink)
Wow people are really cranking out some fat TS scores with that 3080 Strix bios over on the OC.net thread, finally some exciting news.
 
https://www.3dmark.com/3dm/51355499?
 
That's a solid 20% over an OC'd 2080 Ti FTW3 on air.
#48
Kupodesu
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Re: EVGA, what's with the subpar power limits? 2020/10/07 01:25:40 (permalink)
Hahahaha nice!
#49
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Re: EVGA, what's with the subpar power limits? 2020/10/07 08:04:04 (permalink)
Goloith
So I recently purchased an EVGA GeForce RTX 3090 XC3 ULTRA GAMING, but what bums me out is that after spending over $1,700.00 (after tax) that this GPU has practically no overclocking potential.

Yes, I'm aware two 8-pin + PCI-E has a spec of 375w, but why the heck is the power limited to 366w? For Pete's sake, a $100 Asus GPU runs cooler and faster and is set at 375w and regularly goes over. Literally, the #1 problem why this GPU is crashing so much with even the hint of overclocking is that it's power-starved per GPU-Z. Hell even underclocking this thing and it's still capping out at 366w.

This is the first and most expensive GPU I've ever owned and it's the worst at overclocking.

We know people are able to push 500w over two 8-pin + PCI-E with a shunt mod, so please at least release a vbios/driver update to increase the power to 375w and higher!

If a vendors card is set to pull 376W (stock) out of 2x8pin +pcie slot and motherboard or powersupply goes out they could be liable to replace the item due to not following the proper standards.   It would be stupid to intentionally open themself up to that.   You are not going to see that config pull more than spec allows without you having to change it yourself either through software or hardware.
 
Anyone wanting to oc should have gotten a 3x8pin even on the 3080 let alone a 3090 and this was very clear even before launch.
post edited by aardvark1134 - 2020/10/07 08:06:17

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#50
anarchy998
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Re: EVGA, what's with the subpar power limits? 2020/10/07 08:09:23 (permalink)
Almost none of these cards have any overclocking potential. Nvdia pushed the limits of this card to its almost max to begin with. That's not a bad thing though, these cards are insanely powerful.

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#51
kevinc313
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Re: EVGA, what's with the subpar power limits? 2020/10/07 08:39:16 (permalink)
anarchy998
Almost none of these cards have any overclocking potential. Nvdia pushed the limits of this card to its almost max to begin with. That's not a bad thing though, these cards are insanely powerful.




So the Timespy result I posted just above that is 14% ahead of a reference 3080 is.......what?  Looks like there are tons of cards with no potential, but the chips have potential on the right card.
#52
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