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SLI GTX 670 FTWs, odd temp discrepancy

post #1 of 6
Thread Starter 
Hey, so I bought a GTX 670 FTW Sig 2 to go with my 670 FTW(supplies are dwindling) and am very happy with performance, just not sure about the heat. Using the ingame display, the temps on the top card(the Sig 2 w/ two fans) can read 80C, but I can quit the game and be to the desktop in 2 or 3 seconds and check it straight from EVGAs Precision X and it will read at least 10C cooler. Basically, I'm saying I have two different readings, one in game, and the other at the desktop, and there's not enough time for the temps to decrease that much.

I've installed a side fan over the cards, and custom built an air duct wedge to force air in from the front between the two cards(there's just a 1/4 inch gap between the two), and I've set up a custom fan profile using Precision X, and the fan never turns up to 100% like I have it set to when the temps hit 80 C. This all leads me to believe that the in game display is lying to me, but why? Anyone had an issue like this?
Crazyhorse
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Crazyhorse
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post #2 of 6
Temps are fine. 80C is well within the threshold of Kepler. Your top card will always run around 10C hotter and once you quit a game and go to desktop you'll see a huge temp drop. I'd suggest running an intensive benchmark like Heaven 4.0 or Valley 1.0 and watch the temps drop the second you end the benchmark, That's basically what is happening.

You might be right though since you custom fan profile is supposed to hit 100% at 80%, although that is not all that necessary unless you don't care about the noise or shorter lifespan of the fans.
post #3 of 6
Thread Starter 
The only game that makes it run that warm is Crysis 3. My PC is actually in another room from where I game on a 1080p projector so the noise isn't the problem, I'm just concerned about the longevity of the cards.

I played a little Splinter Cell Blacklist and the top card was running around 72 C and the bottom about 10 degrees lower than that, and like I said, when I quit to desktop the temp on the top card was around 55 C. That just seems like a huge drop in a couple of seconds but you're probably right.

Maybe I'll fire up 3DMark and see what it does. Thanks for the input! I am not going to worry about these temps any more either way.
Crazyhorse
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Crazyhorse
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post #4 of 6
80C does make GPU Boost at least 2.0 I'm not positive about 1.0

95C is the temp limit for Kepler, so you're definitely fine.

You're welcome. I'm always here to help. thumb.gif
post #5 of 6
just a side note, running multiple monitoring programs like that can easily give you false readings. for whatever reason, the sensors don't like being polled by multiple sources at once.
also, I would go ahead and set up a nice fan curve as discussed here. even though you're not overclocking your cards, it still helps a lot with their longevity and performance to set up an effective fan curve for cooling. since your tower is in a separate room from where you play, there's no real reason not to set up the max performance curve outlined in that post imo.
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Prometheum
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i5 Folding
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post #6 of 6
Thread Starter 
I hadn't ever really paid attention to the throttle temps the overclocking article points out, so I adjusted my fan curve according to it, to keep it from slowing the cards down. Thanks for the advice!
Crazyhorse
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X5650 Gigabyte GA-X58-USB3 ASUS STRIX GTX 970 ASUS STRIX GTX 970 
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12 Gig Crucial DDR3 1600 Samsung 840 LG BD-ROM Cooler Master Hyper 212 
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Windows 8.1 HP w2338h Microsoft Sculpt Comfort Corsair HX650 
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Corsair Carbide 300R Logitech Anywhere Mouse MX 
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Crazyhorse
(14 items)
 
  
CPUMotherboardGraphicsGraphics
X5650 Gigabyte GA-X58-USB3 ASUS STRIX GTX 970 ASUS STRIX GTX 970 
RAMHard DriveOptical DriveCooling
12 Gig Crucial DDR3 1600 Samsung 840 LG BD-ROM Cooler Master Hyper 212 
OSMonitorKeyboardPower
Windows 8.1 HP w2338h Microsoft Sculpt Comfort Corsair HX650 
CaseMouse
Corsair Carbide 300R Logitech Anywhere Mouse MX 
  hide details  
Reply
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