Hey guys, I just got my two Zotac GTX 460 1GB cards in today - one thing I immediately notice is that they run crazy hot under load. When playing Crysis the top card go up to almost 90* C and the bottom card was around 84-86*C with fans maxed (70% - but I can't turn it up any higher, and I think it's glitched anyway as 70% = 100% or something?). I have an Antec P182 case, has a 120 mm intake fan, 120 mm top exhaust fan, and 120 mm rear exhaust fan. They're the Antec 3-speed fans, I cranked the front one and the top one to high speed - rear exhaust is at medium speed. I recently ran Heaven 2.1 benchmark (Which I scored 35.7 FPS with everything maxed at 1920x1200 except Tessellation which was normal - I got 39.9 FPS when I had it at 4x AA instead of 8x) - and by the time the test was done (Like 5 minutes or so) the cards went from a roughly 45-50* C idle to 82* C on the bottom card and 88* C on the top card.
Now I came off two GTX 260's I ran in SLI as well and their load temps were about 74-76* C quite regularly with settings up fairly high. Idle temps for the 260's were about 55* C - but to be fair I never setup a fan profile for them so it was the auto one which liked to default at 40%, I setup a profile for the 460's so I don't know how much that is helping. So I'm wondering what's wrong here? I see some people saying the 460's don't go over 75* C under load, but I'm far from doing that at almost 90* C. I know the max temp is 104* C I'm just concerned that they're running so hot. They don't seem to go over 90* C, but I wouldn't want them hovering around that temperature. Using MSI afterburner right now and my fan speeds are 36% with idle temps at 48* C on both cards.
So do you think this is a problem with my cards, a problem with my case, or something else? I have airflow optimized the best I can in the case - can't really do much more to improve it I think. I do have a card inbetween the 460's - my sound card, but I can't put it anywhere else although it does not block the fans at all. I have a little over 6" of clearance behind the case (I have little choice where else to put it - it's under my desk, but it's not in a cubby hole or anything so the sides and front have plenty of space around them. My room always feels warm, thermometer says 30* C and that's with the heat on in the house set moderately (So it's 85* F in my room and the themostat is set at 74* F - and I do have the fan on too). Today it had just rained so it's 46* F outside (Roughly 8-12* C I'm guessing). So, given all those factors - what do you think is the cause?
Now I came off two GTX 260's I ran in SLI as well and their load temps were about 74-76* C quite regularly with settings up fairly high. Idle temps for the 260's were about 55* C - but to be fair I never setup a fan profile for them so it was the auto one which liked to default at 40%, I setup a profile for the 460's so I don't know how much that is helping. So I'm wondering what's wrong here? I see some people saying the 460's don't go over 75* C under load, but I'm far from doing that at almost 90* C. I know the max temp is 104* C I'm just concerned that they're running so hot. They don't seem to go over 90* C, but I wouldn't want them hovering around that temperature. Using MSI afterburner right now and my fan speeds are 36% with idle temps at 48* C on both cards.
So do you think this is a problem with my cards, a problem with my case, or something else? I have airflow optimized the best I can in the case - can't really do much more to improve it I think. I do have a card inbetween the 460's - my sound card, but I can't put it anywhere else although it does not block the fans at all. I have a little over 6" of clearance behind the case (I have little choice where else to put it - it's under my desk, but it's not in a cubby hole or anything so the sides and front have plenty of space around them. My room always feels warm, thermometer says 30* C and that's with the heat on in the house set moderately (So it's 85* F in my room and the themostat is set at 74* F - and I do have the fan on too). Today it had just rained so it's 46* F outside (Roughly 8-12* C I'm guessing). So, given all those factors - what do you think is the cause?