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Cooler master CH5-5K12: Which way

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Apr 7, 2001
Ireland, Belfast
I have got a cooler master CH5-5K12 fan and heat sink and was wondering which way i should install it for better cooling. The thing i was wondering is that it is not like most heat sinks, that is the fan is on the side of the heat sink, i was wondering if i should install it so that the side with the fan is pointing towards the bottom of the case or should i make it point towards the PSU and the exsuset fan (i have a midi tower case, so i thought it would make more sense to make it point towards the PSU and exsuset fan as heat rises and would come of the heat sink quicker, i am i wright)

you want the fan at the bottom so it can blow the cold ari comming in at the front out of the psu or fan next to the processor