PSU fan facing up or down?

[Lither]

I have built a HTPC in the Silverstone ML03 case (Intel Pentium G4600, GT 1030, 8GB RAM, 250GB SSD and 8TB HDD) and will be placed on the bottom self of this TV stand.



The only fans in the case is the CPU cooler (Big Shuriken 2) and the PSU (Be Quiet 300W SFX Power 2) and I'm wondering should I mount the PSU with the fan facing up or down? The case has a fan vent and filter on the bottom for the PSU.

Also, the Big Shuriken 2 cooler fan is intake (default) and the case has CPU vent and filter on the top, should I leave the fan as intake or change it to exhaust?

Thanks

 

[Lither]

Facing down so it can draw in air to cool itself. If you put it fan up in that case it won't get any air. With regards to the cpu fan, many people have had better temps by reversing the fan so it's blowing upwards instead of downwards. If that vent is directly over where the cpu cooler will fit that could work well for you in that case. The cpu cooler will end up drawing air in from that side vent across the motherboard and memory and dumping the hot air out of the case. The conventional method with the fan blowing down just dumps the hot air across the motherboard, memory and out of the side vent while trapping some in the case which will get drawn through the cooler again and increase temps. Having the fan blowing up and out of the roof vent should theoretically lower temps of everything in the case.

Yes, the CPU vent on the top is directly over where the CPU cooler is. I will turn the CPU fan around to exhaust as the GT 1030 GPU is a passive card so having all the hot air out through the top is the better option since the GPU, RAM and motherboard are quite close to each other.

With it being a exhaust on the top, I guess there is no need for the magnetic CPU fan filter?