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PSU fan direction (in or out?)

post #1 of 6
Thread Starter 
So I had a closer look at the fan on my PSU and noticed that it is currently sucking air in from the back of my case and blowing it out at the bottom. (The PSU fan is configured as a pull fan)

With my current setup I have an exhaust fan at the back and an intake fan at the bottom of the case, so my logic says that all the warm air going out the chassis is getting sucked in by the PSU and the warm air from the PSU is getting sucked in by the bottom chassis intake fan.

So the question: Would it be advisable to turn the PSU fan around, so that it gets cold air from the bottom and blows it over the inside of the PSU, before it exits at the back??

Here is a photo of the way it currently is:
6070552363_3e279ccd63_b.jpg
IMG_1856 by *Pilgrim*, on Flickr
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post #2 of 6
I thought all Corsair PSU fans were intake, not exhaust...? I know my AX850 sucks.tongue.gif
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post #3 of 6
if you can make it intake since you will just be blowing hot air through your psu
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post #4 of 6
Quote:
Originally Posted by Lost Hawaiian;14677346 
I thought all Corsair PSU fans were intake, not exhaust...? I know my AX850 sucks.tongue.gif

Okay, verified this on the Corsair forums...They big fan on the top/bottom is always an intake and the hot air is expelled out the back of the PSU.

So in your case, if you have a vent below the PSU mount, you should put it fan facing down to suck cooler air into the PSU...unless you set your case on the carpet, which might cause it to suck more dust and lint in.

Rich
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post #5 of 6
Thread Starter 
So in a nutshell, I need to turn the PSU fan around then?

On a side note, where can I find a replacement fan for the PSU? Mine is currently sounding like an old diesel engine (yes it is the fan, I've verified this). I've got some spare 140mm fans, but they all have 3/4 pin connectors and the PSU fan only has 2.
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post #6 of 6
If you have a vent underneath your PSU, you should be fine as shown in your picture. The only difference is that the airflow for the PSU is opposite of what you show (in through the bottom, out through the back).

I have no idea about replacing the fan. What I would suggest is you give either CorsairGeorge or YellowBeard a PM and ask him. I'm sure one of them will be able to either assist you in ordering the correct part or finding a substitute locally.

Hope this helps,

Rich
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Ichiban
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Niban
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CPUMotherboardGraphicsRAM
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Intel 320 series Western Digital Caviar Black LG Super Multi Blu Ray Burner LG Super Multi DVD Burner 
CoolingOSMonitorKeyboard
Cooler Master Hyper 212 plus Win 7 Pro 64 bit 3 x Dell U2311H/Dell 2209WA Logitech K800 
PowerCaseMouseMouse Pad
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Other
Scythe Kaze Master Pro Fan Controller 
CPUMotherboardGraphicsRAM
Intel i7 3930K ASUS P9X79 Deluxe ASUS HD7970 DCII Corsair Vengeance Low Profile 16GB 
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Intel 520 Series Western Digital Caviar Black LG Super Multi BluRay Burner LG Super Multi DVD Burner 
CoolingOSMonitorMonitor
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MonitorKeyboardPowerCase
Dell U2410 Logitech K800 Illuminated Wireless Corsair AX850 Corsair Obsidian 550D 
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