HSF position

[clownbaby]

I'm moving a system into a new case, and not sure which way to orient the HSF. HSF is a Xigmatek S1293, and the case is a NZXT tempsest. Is it better to Blow through the heat sink towards the back of the case, or towards the top? I'm also swapping the mobo for a pq5-e, so the chipset heatsinks and piping may be a factor. I'm would assume blowing up would be ideal, towards the 140mm exhaust, but there's also a 120mm exhaust on the back.

anyway,
thanks for the input

 

[cmichael258]

Since hot air rises, and that case has dual exhaust fans in the top, I would set the HS up to blow to the top. I'm not familiar with the PQ5-E, so I don't know if the MB or RAM will determine the position.

 

[Dopekitten]

I have a P5Q-E. I would suggest orienting it so the air blows out the back because that way the heatpipes of the S1283 will orient correctly along the CPU cores (its not a square in there, more like a rectangle). So basicly, you want all 3 pipes going allong the CPU cores, rather than just 1.

 

[iluvgillgill]

are you using a quad or a dual?

test it out yourself it wont hurt just to remove the heatsink and put it in the other position. since the updraft is more prominant in that case it might get better airflow accross the fins if face upward.

 

[V3NOM]

yes, with a heapiped HSF, the direction the HSF should be pointing should be inline with the cores. quads and duals have different core alignments. in general, with a dual it should be pointing upwards (and covering a DIMM slot or two ), but with a quad it should point out the back to make the most of the heatpipes. although, if you have a ridiculously large fan at the top, may as well point it upwards regardless of the core count

 

[iluvgillgill]

i still waiting for 2 people to actually test it out so i can have a conclusion on that fan+airflow direction.

 

[V3NOM]

err i thought lupi had...

 

[clownbaby]

I'm using a quad, and don't like the idea of covering up DIMMS, so I'm gonna face it to the rear. I figure the top exhaust will still evacuate any warm air that may build up around the HSF.

 

[V3NOM]

perfect. the pipes will align with the quad, the DIMM slots will be clear, and you're hot air will shoot out the rear XD you might think of having a cardboard box around the xiggy to drop it a few degrees. I have only found this recently, although its a pretty simple concept. the air will move through the fins and out the back instead of blowing out the SIDE of the HSF through the fins... not sure if this would still apply with a top fan installed... your thoughts gill?