Fans - In or Out

[nheather]

I have a midi tower case with positions for 5 fans. I have four of them clear in my head but unsure about the fifth.

I have two 120mm fans on the front drawing air INTO the case.

I have one 120mm fan at the back drawing air OUT OF the case.

I have one 140mm fan on the top drawing air OUT OF the case.

Which leaves me with the fifth. This is on the side panel of the case pretty much above the CPU.

Would it be best to configure this to draw air INTO the case onto the CPU cooler or OUT OF the case from the CPU cooler?

Cheers,

Nigel

 

[nheather]

I wouldn’t have bothered but I have a glut of fans, bought a box of five because it was cheaper than buying four singles. Schoolboy error because I didn’t realise one of the fans needed to be 140mm, which I then had to buy separately.

Would have been cheaper to buy 3x 120mm and 1x 140mm but mustn’t cry over spilt milk - but fitting it will make me feel better as I will only have one left over not two.

I will check what direction the CPU fan spins and harmonise with that.

Cheers,

Nigel