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Case Side Fan: Intake or Exhaust? (Temperature data graph)

post #1 of 17
Thread Starter 
So, I was experimenting with my new OC on my XFX non-reference 5850 (970/1250 @ 1.22v) and decided to do this.

Here's a really simple graph on the impact of the side fan on GPU temperature during full 100% load in Furmark 1.8.

In this case, the Antec Tricool 120mm on the side was pointed almost directly onto the EXHAUST vents on the GPU. The case fan was running at medium setting--1600RPM, 56CFM. The GPU fan was on 100% the entire time.

The ambient temperature was 19c throughout all temperature trials.

Each temperature recorded was taken one minute after the card was loaded for 5 minutes.

The tests in the order I did them:
1. Case open
2. Intake
3. Exhaust

Graph:


Share your opinions. Is your side fan on intake or exhaust? What is the impact on GPU temps?
Achromatia II
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Achromatia II
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post #2 of 17
Intake, 2c cooler when on air.
    
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post #3 of 17
Intake, of course.

Puts cool air right on the cards
post #4 of 17
Intake. Heat rises, pull the cooler air in and force the heat up.
    
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post #5 of 17
Thread Starter 
Interesting, a lot of people recommend having a side case fan on exhaust.
I run it as intake anyways.
Achromatia II
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Achromatia II
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post #6 of 17
Intake & case open, best of both worlds.
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post #7 of 17
Intake - no brainer. Pulls cool air onto your video card, and if it's a good enough fan, the NB and SB.
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post #8 of 17
intake 19C hotter Exhaust 13C cooler
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Gr33n Machine
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Laptop
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seagate 500GB seagate barracuda 320GB Seagate 160GB WD Blue 250GB 
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WD Blue 320GB lite-on DVD-RW+- rocketfish universal CPU cooler Tower Type Windows XP Media Center Edition 
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post #9 of 17
Quote:
Originally Posted by Richenbals View Post
Intake & case open, best of both worlds.
What good would the side panel fans do if the case is open (ie: side panel off)???

EDIT: shouldn't this thread be in air cooling? I know the OP is talking about cooling the graphics card but still
Edited by tw33k - 1/24/11 at 7:41pm
post #10 of 17
Thread Starter 
Quote:
Originally Posted by tw33k View Post
What good would the side panel fans do if the case is open???
Was just curious to see how it would compare to a intake/exhuast setup.
Achromatia II
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Hard DriveCoolingCoolingOS
Intel X25-M 80GB + WD Caviar Black 1TB + WD 320GB XSPC Rasa CPU Block (copper+acetal) + XSPC RX360 2x EK-VGA Supreme HF (copper+acetal) Windows 7 Ultimate 64-bit 
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Achromatia II
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Hard DriveCoolingCoolingOS
Intel X25-M 80GB + WD Caviar Black 1TB + WD 320GB XSPC Rasa CPU Block (copper+acetal) + XSPC RX360 2x EK-VGA Supreme HF (copper+acetal) Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
3x Asus VH232H (Eyefinity) Razer BlackWidow Ultimate Antec TPQ-850w Cooler Master HAF X 
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