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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 2088

post #20871 of 21380
Hello everybody, 1st post here!! I am running sli 980ti classifieds with EKWB 780 gtx classy blocks which are the only blocks made for my cards. Ive had this setup for about 3 months and its great. the cards run stable at just slightly over 1500mhz and max out at 50 Celsius. Today i got to thinking, is there anything I can do in increase my overclock? my voltage and power limit are all the way up, should i install a different bios? I dont know if it would be worth it or not. If somebody could point me in the right direction that would be awesome.
post #20872 of 21380
Quote:
Originally Posted by drewlrox View Post

Hello everybody, 1st post here!! I am running sli 980ti classifieds with EKWB 780 gtx classy blocks which are the only blocks made for my cards. Ive had this setup for about 3 months and its great. the cards run stable at just slightly over 1500mhz and max out at 50 Celsius. Today i got to thinking, is there anything I can do in increase my overclock? my voltage and power limit are all the way up, should i install a different bios? I dont know if it would be worth it or not. If somebody could point me in the right direction that would be awesome.

If you want the max potential out of the, yes you need a custom vbios and also a voltmod tool. Since you're running SLI you'll probably have to settle for lower voltage and clockspeeds than running single card. I have an 780, so I don't know which is considered the best vbios out there, there's probably some that's tuned for benching and others for gaming.
    
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post #20873 of 21380
If you do the bios right, for water and air cooling, they can be used for both, pretty easy.

Got my 980ti Classys in and tested on air with stock volts. I used FS Ultra graphics test 1 and 2 to push the core up, see where it's limits were on air.

The 1st card, 72.6% ASIC, topped out at 1524. The 2nd card, 75.2% ASIC, topped out at 1544. A tad disappointed, really, but....they'll work.
post #20874 of 21380
Quote:
Originally Posted by Vellinious View Post

If you do the bios right, for water and air cooling, they can be used for both, pretty easy.

Got my 980ti Classys in and tested on air with stock volts. I used FS Ultra graphics test 1 and 2 to push the core up, see where it's limits were on air.

The 1st card, 72.6% ASIC, topped out at 1524. The 2nd card, 75.2% ASIC, topped out at 1544. A tad disappointed, really, but....they'll work.

What were you seeing for temps?
post #20875 of 21380
Quote:
Originally Posted by Vellinious View Post

If you do the bios right, for water and air cooling, they can be used for both, pretty easy.

Got my 980ti Classys in and tested on air with stock volts. I used FS Ultra graphics test 1 and 2 to push the core up, see where it's limits were on air.

The 1st card, 72.6% ASIC, topped out at 1524. The 2nd card, 75.2% ASIC, topped out at 1544. A tad disappointed, really, but....they'll work.

Lower your voltage to 1.1875ish and try again.
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post #20876 of 21380
Quote:
Originally Posted by bigblock990 View Post

What were you seeing for temps?

60 to 61 on both, pretty much. Too high....
post #20877 of 21380
Quote:
Originally Posted by Vellinious View Post

Even when I had 2 x 970s looping FS Ultra at some pretty high overclocks, and my 5820k running 4.625, my coolant delta never gets above 10c-11c. During normal gaming, it's usually around 4c. Love my loop. I keep it pretty cool in the PC room, about 18c, sometimes cooler, so coolant temps stay pretty low.

im basically having the same issues as you but I have a KPE

deciding whether to WC it or just get a 1080


I seem to get 1525/8000 stable on normal bios not game stable though. bench stable

temp gets into the mid 70s on air

I have a W/C setup dont think id be able to keep it under 50c tho my old titan x on water max temp was 61c but my room was roasting at the time 32c lol my room is usually 22c
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post #20878 of 21380
Tried 1.187v with 1547 on the core. Temps still creeping up too much, and as soon as it hits 57c, becomes unstable and crashes. Like clockwork, every time.

I need to make some time to get the blocks on, loop flushed and refilled.....
post #20879 of 21380
Quote:
Originally Posted by Vellinious View Post

Tried 1.187v with 1547 on the core. Temps still creeping up too much, and as soon as it hits 57c, becomes unstable and crashes. Like clockwork, every time.

I need to make some time to get the blocks on, loop flushed and refilled.....

you should be able to get at most another +13 or + 26 out of it, by reducing the temps below 30C. The lower your temps the more benenficial added voltages are though.

For example on one of my KPE's I can bench at 1572 @ 1.205V or thereabouts, only if I can keep temps below 28C. On 3Dmark Firestrike 4K Ultra.
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post #20880 of 21380
Quote:
Originally Posted by Vellinious View Post

Tried 1.187v with 1547 on the core. Temps still creeping up too much, and as soon as it hits 57c, becomes unstable and crashes. Like clockwork, every time.

I need to make some time to get the blocks on, loop flushed and refilled.....

keep lowering the volts till you find the sweet spot between good temps and just enough volts.
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