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Bah, waste heat from 660Ti heating up my CPU

post #1 of 7
Thread Starter 
I'm not so impressed at all the waste hot air pouring out of my new MSI 660Ti PE. I accept that the MSI stock cooler is probably a lot better than the stock one on my older XFX GTS250, but that, even at 85C blew the air out of the PCI slots and out of the case. The MSI 660 Ti is at 74C whilst folding, and just spews the hot air into the surrounds in the case, and as a result I'm sure runs hotter than it needs to by re-ingesting some of that heated air. The CPU, an i7 920, has gone from 70C to 80C as a result of this.

I know the temps aren't totally disastrous, but this is folding, so is running all the time my CPU is on. I'd much rather a solution that took the GPU heat and threw it outside the case. The case is a white Corsair 600 T, by the way, which is also not the most top end at cooling. I don't want to put the mesh window in.

What solutions do you guys know of? The Artic Cooling Accelero Hybrid seems like one easy possibility. I can mount the radiator in the top of the case, and take out the 200mm fan, replacing it with a 120.
    
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post #2 of 7
The Accelero Hybrid will work, but wouldn't it be cheaper to sell the card you have right now and get one that exhausts air outside?

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130809

And yes I have noticed that CPU temps rise with my GPU running at 100%, but not 10C. Usually around 5C
Edited by fishymamba - 12/12/12 at 6:44pm
post #3 of 7
More air flow. The heat needs to move since it's not a reference design card. The heatsink is just creating a heat pocket rather than expelling it from the case.
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post #4 of 7
Quote:
Originally Posted by That Guy View Post

More air flow. The heat needs to move since it's not a reference design card. The heatsink is just creating a heat pocket rather than expelling it from the case.

That's what I was thinking, but he seems to have a pretty well ventilated case. I see that your case has a fan controller built in, maybe try turning up the fans a little bit to move the air.
post #5 of 7
You need to make sure you have intake and exhaust fans to move fresh air in your case and hot air out. The fans inside your case do not mean much if you are not getting the hot air out.
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post #6 of 7
Thread Starter 
Thanks guys! Yes, I think there's a fair amount of airflow, if not the best. The problem is that a large amount of that GPU heat is getting ventilated via my Noctua NH-D14. That leaves me thinking that it's not so much stagnant, as just misdirected.

I've bought a BitFenix Spectre Pro to replace the front intake 200mm fan. That'll take it from 92cfm max to 148cfm or so. I've also bought a Lian Li PCI dual slot fan to exhaust heat around the bottom of the graphics card. That might do enough, but if not, I guess it'll have to be some water cooling as that'll take the heat completely outside the case.
    
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post #7 of 7
Thread Starter 
Oh well, the PCI slot cooler didn't work as it doesn't fit. I've been playing around a fair bit, monitoring airflow and trying different things. It turns out the solution is for me to turn the top 200mm fan around, changing it from exhaust to intake, and removing the lower four PCI backplates.

The result is a massive amount of heat being pushed out the back of the case, and my temps are back to a nice 71C or lower for the GPU and all four cores.

Now I just need an intake filter, ordered a decmiflex 200mm on Amazon.
    
CPUMotherboardGraphicsRAM
i7 920 Asus P6T deluxe v2 MSI 660 Ti PE 12 GB Corsair XMS3 6 x 2GB 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3  WD Black 2TB WD Green 2TB WD Black 1TB 
Optical DriveCoolingOSMonitor
LG Blu Ray RW Noctua NH-D14 Windows 8 Dell 2405FPW 
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OCZ Agility 3  WD Black 2TB WD Green 2TB WD Black 1TB 
Optical DriveCoolingOSMonitor
LG Blu Ray RW Noctua NH-D14 Windows 8 Dell 2405FPW 
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Ducky Shine II, Cherry MX Blues, White LED full... Corsair HX850W Corsair 600 T White special edition MS touch mouse 
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