expected temps for 970 sli ?

avatar12m

avatar12m

avatar12m

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hi, anyone running 970 sli was wondering what temps to expect atm i'm getting 65oc under extreme benching with furmark after 30 minutes. ambient room temp 26oc

i'll prob mess around with fans trying push/pull etc to improve it a bit.

atm top 240 rad with fans below pulling air in , 1 fron 120mm rad with fan on outer pulling air through and one fan in the rear of the case pulling hot air out
 
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avatar12m said:
hi, anyone running 970 sli was wondering what temps to expect atm i'm getting 65oc under extreme benching with furmark after 30 minutes.

i'll prob mess around with fans trying push/pull etc to improve it a bit.

atm top 240 rad with fans below pulling air in , 1 fron 120mm rad with fan on outer pulling air through and one fan in the rear of the case pulling hot air out
Click to expand...

Sounds plausible I suppose. I'll be able to let you know soon, but Ubersonic I know has 970 SLI.
 
Water cooled hitting 65 degrees? Seems hot. My 780's overclocked are like 45 ish or 50 with fans on low.
 
thanks for replies, mine reached 74oc last night after 3hrs solid in far cry 4 :eek:seen allot of differing values reported on review sites.

single cards

trusted review load 75oc
pcgamer review load 58oc
kitguru review load 77oc
various others load 68oc

sli load card 1 58oc
card 2 62oc

not one of them say the ambient room temp only kitguru properly tested it with furmark.
 
my loop is,

ek100 res/top to liang ddc (standard) to 970gtx1 (stock) - 970gtx 2 (stock) - 240 rad - i7 2500k (stock speed ) - 120 rad - pump/res.

using 1/2" hose, fans on 240 rad pulling air in @ 7v , fan on 120mm rad pulling air out , 1 rear fan pulling air out @ 5v and 1 front fan pulling air out @ 5v

might try reseating gpu blocks with a better tim
 
My cards hit 50-55c at max volts with a modded BIOS.

There's also no head room gain from water cooling either.

So if you cooling for extra performance I wouldn't bother.
 
Erm...

Maybe you'd want to recomfig your air flow design??

I've got two 970 G1 Gaming, and with 2 hrs of FC4 (no OC tho) my top card is hitting 66 whereas lower card is hitting 60.
 
avatar12m said:
my loop is,

ek100 res/top to liang ddc (standard) to 970gtx1 (stock) - 970gtx 2 (stock) - 240 rad - i7 2500k (stock speed ) - 120 rad - pump/res.

using 1/2" hose, fans on 240 rad pulling air in @ 7v , fan on 120mm rad pulling air out , 1 rear fan pulling air out @ 5v and 1 front fan pulling air out @ 5v

might try reseating gpu blocks with a better tim
Click to expand...

My Gigabyte G1 Gaming 970 runs cooler than that on air.

You're a bit light on rad space. Rule of thumb is 120mm per component plus 120 on top which means you want 480mm combined for that loop. You have 360mm in that loop.

How thick are the rads?
 
avatar12m said:
my loop is,

ek100 res/top to liang ddc (standard) to 970gtx1 (stock) - 970gtx 2 (stock) - 240 rad - i7 2500k (stock speed ) - 120 rad - pump/res.

using 1/2" hose, fans on 240 rad pulling air in @ 7v , fan on 120mm rad pulling air out , 1 rear fan pulling air out @ 5v and 1 front fan pulling air out @ 5v

might try reseating gpu blocks with a better tim
Click to expand...

Not enough rad space and not enough air flow.
 
ok i just ordered a fan controller so i can have them all at 12v or slower so thats the airflow sorted and i'll change a few to push but how much more rad space would you suggest ?
 
avatar12m said:
i'll prob mess around with fans trying push/pull etc to improve it a bit.
Click to expand...

To be honest, tuning your cooling based on Furmark is like doing your shopping based on the possibility you will have a dozen relatives show up unannounced and require feeding. Unless you plan to spend a lot of time sitting at the computer watching Furmark then you don't have to worry about how hot that will make it.


Flying_Hellfish said:
Sounds plausible I suppose. I'll be able to let you know soon, but Ubersonic I know has 970 SLI.
Click to expand...

I get high 30's-low 40's on both cards in normal usage, benchmarking is the same (because I run the fans at max when benching, because why wouldn't you?).

My setup is 2x Inno3D GTX970's at 1500/8000, a 4.5GHz 4930K and PCH/VRM blocks on a Rampage IV Gene. Cooled by a PA120.3 with 3x800RPM Scythe slipstreams and a PA160.1 with 1x Akasa Ultra Quiet Venom Viper PWM.

Mileage ofc may vary.


avatar12m said:
ok i just ordered a fan controller so i can have them all at 12v or slower so thats the airflow sorted and i'll change a few to push but how much more rad space would you suggest ?
Click to expand...

To be honest with you, You have a Rampage V board according to your sig, ASUS are "the daddy" when it comes to MB fan control, just connect your fans to the MB (CPU headers for PWM, sys fan headers for 3pin) and set some curves then the fans will speed up/down according to CPU temperature.
 
thanks for taking the time to reply much apprehiated

i never thought of using the motherboard controllers /doh (must have forgot) also just realised the pump has a max operating temp of 60oc which is worrying think i might get one of them ek ventel metal pumpbase heatsink things to help as my case is pretty small, fractal arc midi.
 
avatar12m said:
ok i just ordered a fan controller so i can have them all at 12v or slower so thats the airflow sorted and i'll change a few to push but how much more rad space would you suggest ?
Click to expand...

Another 120mm to give you 480 in total.

avatar12m said:
thanks for taking the time to reply much apprehiated

i never thought of using the motherboard controllers /doh (must have forgot) also just realised the pump has a max operating temp of 60oc which is worrying think i might get one of them ek ventel metal pumpbase heatsink things to help as my case is pretty small, fractal arc midi.
Click to expand...

60c is fine, the warmest your coolant should get is 40c maximum. It will sit one or two degrees above room temp on idle and sit probably high 20's / early 30's when under normal load. Remember, it's your GPU chip that is sitting at 65c right now, not your coolant (which is much cooler).

Before buying fan controllers and radiators and new pumps, why not take one card out of the water loop and run the single GPU and CPU? Test for temperatures under stress (not Furmark, do OCCT for the CPU and Heaven for the GPU and BF4 for both). You're looking for high 60's on the CPU, mid 40's on the GPU and high 20's for the coolant.
 
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avatar12m said:
thanks for explaining that i thought the water would be hotter, btw my top rad is a http://www.overclockers.co.uk/showproduct.php?prodid=WC-004-BX&groupid=962&catid=1523&subcat=1525

would getting this one make allot of difference http://www.overclockers.co.uk/showproduct.php?prodid=WC-487-EK&groupid=962&catid=1523&subcat=1525

as i cannot fit another radiator in.
Click to expand...

Yes, it's a better rad but I would be careful how you proceed from here. You've already spent money on your kit and in hindsight you made some poor choices. Do your homework this time and make sure you buy the right kit. I don't mean that to come across as harsh, but I wouldn't want to see you throwing money away.

Let's cut to the chase... you want to watercool a CPU and SLI setup but you only have room for a 240 + 120 rad. The prime limiter here is your case. What case are you using?
 
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