SLI GTX 980 Strix temps(Top Card)

[Dark Autark]

Hello everyone. I have just bought myself another GTX 980 strix and running both in 8x 8x because i have the maximus ranger, my bottom card max temp is 69'c max while my top card max i have seen is 82'c running crysis 3, i have a 3 speed control fan on the side of the case blowing cold air into the graphics cards, thats set to medium speed because no noticeable difference in tempatures with alot of added noise.

I was just wondering if anyone with a simular build has these temps too, i know nvidia max temp is 98'c and im well within the safe limit. just wanted some clarification if this is normal.

I7 4790k @4ghz cooled with the H80i(so cpu shouldnt be heating it up at all)
2x GTX 980 Strix OC

Thanks.

[˜lokkandload˜™]

If case airflow isnt geting to the second card because the first one is in the way this could happen. Also, any heat dissipation from the card in front will trickle over to the second card causing it to get heated air.

[Dark Autark]

Intake: Front, Side, H80i(Back)
Outtake: top case

i should think its getting plenty of air since i put the side fan on, before it was 84'c on the top card and 72 on bottom.

[Jill Valentine]

Heat rises. Yes it's normal, running two 980's here. One card is always hotter than the other.

[Dark Autark]

what is your top card temps?.

my cards fans dont start spinning till 65'c so i think that is a factor in the top card temps.

[Jill Valentine]

I don't play Crysis 3, but my bottom card is around 65'c and top is 73'c.

[Dark Autark]

i only used crysis 3 as a benchmark, i havent found a game what heats the cards up that much, batman arkham knight is about 68 bottom and 75 top.

I think i was just abit worried since i was used to 1 card running at 69'c and never above, i am well within the cards safe limits, i may just pop afew ice cubes under the fans :)

[Jill Valentine]

Hahah, I get my fan to blow on it directly and it drops the temps by another 6'c.

[˜lokkandload˜™]

Outake from the top of the case doesnt remove the heat trapped between the two cards. Do either of the cards have backplates? This will help some by channeling more of the heat out of the back of the cards, not a whole lot but a little. BTW for reference I'm also running SLI 980 FTWs...Actually the temps where the card fans spin up is 60c...mine dont spin up until then and my average temps for both cards at load is 72c for the front card and about 76-77c for the back card. So, yes there is always a difference.

[Jill Valentine]

Publicado originalmente por ~Dirt Na$ty~™:

Outake from the top of the case doesnt remove the heat trapped between the two cards. Do either of the cards have backplates? This will help some by channeling more of the heat out of the back of the cards, not a whole lot but a little. BTW for reference I'm also running SLI 980 FTWs...

I wish MSI had backplates.....

[˜lokkandload˜™]

I had to buy backplates separately as well...kinda ticked me off for that price that they didnt come with them.

[Dark Autark]

yea my strix's come with backplates, the strix fans dont spin till 65'c i think if i set it so they start to spin at 60'c then the cards wont heat up as much or reach 80ish.

[_I_]

with sli/cfx the top card will run hotter since it is pulling heat from the back of the bottom card

a solution would be to use a reference card for the top so it blows air out the back of the case, not circulating air between the cards

or get a case with side fans to blow cooler air between the cards

[Dark Autark]

cooler master haf 912 is what i have, got a 140mm fan blowing cold air in between the two cards and it did drop the tempature down quite abit.

I was thinking about getting watercooled cards, but the hassle and the cost of getting a full water cooled rig is not worth the effort or extra hours i would have to give my workplace. and i cant really put anymore hours into work since i have a very tiring 1 year old and a stressed out mother/GF when i am back haha.

[UltrAramA]

These temps sounds normal to me since you are running 2 GTX 980 in SLI. I have 2 Gigabyte GTX 980 Ti G1 GAMING running in SLI and the bottom card reaches 71C and the top card 80C at max in games like GTA V in 4K resolution.
So don't worry about these temps unless you are going over 90C.

Note:
I overclocked my cards gpu's to 1300Mhz but the cards puch themselves even higher to 1390Mhz, when the temp reaches 80C on the top card the cards lower their clocks to around 1340Mhz.