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980ti sli watercooled high Temps??

post #1 of 13
Thread Starter 
As in the title I have two 980ti sli watercooled with ek full cover blocks and backplates, each card has a custom bios and a core clocks of 1500 with the voltage at 1.218.


Under heavy loads and benchmarking the cards will both top out at about 44-45 each.
Loop order is res-pump-gpu2-gpu1-rad1-cpu-rad2-back to res

Both rads are ek 360mm with 3 fans on each as pull intakes.

Is that too warm? Not in a throttle or damage sense but should the Temps be lower.
post #2 of 13
Those see good temperatures for those clocks and voltage. I'm guessing you've got about a 17c delta on them.
post #3 of 13
My single one with a 360 in push / pull runs up to 41C. (@1.218v / 1500mHz)

Yours sound fine to me.
Edited by Wihglah - 6/26/16 at 3:05pm
post #4 of 13
Thread Starter 
I've got another 420 radiator I could add to the loop is it worth it or would it be wasted at that point ?
post #5 of 13
Quote:
Originally Posted by partypoison25 View Post

I've got another 420 radiator I could add to the loop is it worth it or would it be wasted at that point ?



It might get you a couple of degrees.
post #6 of 13
Pretty good temps considering the OC and heat being dumped into the loop. What cpu are you using?

Never hurst to put a 420 rad into the loop!thumb.gif
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by skline00 View Post

Pretty good temps considering the OC and heat being dumped into the loop. What cpu are you using?

Never hurst to put a 420 rad into the loop!thumb.gif

6700k at 4.6, forgot to put it in the main post.
post #8 of 13
You didn't tell your ambient temperature.
44C sounds insanely low to me. Guess two 360 mm rads would do that. My 6950 goes up to 51C with just 1.0V and stock 800 MHz clock on a single TC PA120.3 rad with ambient of 26C.
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post #9 of 13
Those temps are good. The 420 might would let you run the fans at a lower speed for sure though. Do you have a water temp sensor in the loop? One of the things I like to know now is my water to ambient air delta. It helps to set a very quiet fan curve.
post #10 of 13
Quote:
Originally Posted by partypoison25 View Post

Under heavy loads and benchmarking the cards will both top out at about 44-45 each.

Without recording your ambient air temp then we don't really know whether those temps are great or not. If your ambient temp is -10C then 44C for the cards is not great....biggrin.gif

However 44C is quite a safe temp for these cards.

I have relatively large cooling capacity reserve in my DejaVu build (3x 560 rads) and run an overclocked 6700K @ 4.8GHz with 2x 980Ti's @ 1510 Core and 4300 Mem.

Under benchmarking loads, with a 20C ambient temp my 980Ti's hover around 27 to 28C, so the delta is around 8C for my setup.


Edited by Costas - 6/29/16 at 5:33pm
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