PC mod-CPU air duct
- Thread starter mojo42
- Start date
OvenMaster
VIP Member
I did this on two computers. 
The first computer was easy: All I did was cut a 3" diameter hole into the side panel and made a duct out of aluminum HVAC tape and cereal boxes
so that the duct went right up to the 60mm CPU fan. Temps dropped by about 10°C, so it was a success.
This bunch of cardboard was designed to hold a piece of air conditioner filter foam in place.
The second computer I did this to, I didn't want to cut a hole in the side panel, so I cut a hole in the rear and used aluminum hose to bring in air. This was a failure; temps actually rose by about 3-5°C compared to a normal set of intake and exhaust fans in the front and rear panel. I took out the front intake fan and temps dropped another 2°C.
Bottom line is that no two computers are alike, and the duct seems to work better in small cases than big ones. If you try it and it fails, you'll have to cover up the hole you made somehow. Good luck with this!
The first computer was easy: All I did was cut a 3" diameter hole into the side panel and made a duct out of aluminum HVAC tape and cereal boxes
so that the duct went right up to the 60mm CPU fan. Temps dropped by about 10°C, so it was a success.
This bunch of cardboard was designed to hold a piece of air conditioner filter foam in place.
The second computer I did this to, I didn't want to cut a hole in the side panel, so I cut a hole in the rear and used aluminum hose to bring in air. This was a failure; temps actually rose by about 3-5°C compared to a normal set of intake and exhaust fans in the front and rear panel. I took out the front intake fan and temps dropped another 2°C.
Bottom line is that no two computers are alike, and the duct seems to work better in small cases than big ones. If you try it and it fails, you'll have to cover up the hole you made somehow. Good luck with this!
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