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Should my cpu fan in Pull or Push mode?
dg29031994
Member UncommonPosts: 135
in Hardware
I have a corsair H100i in a NZXT Phantom case. Which one of the following should i do? (1,2,3 or 4) ( my Case can fit the fan and the fin in anyway i want)
That is for me, now for my friend. He has a Corsair 600T case, there is no way for him to set up the H100i like " 2 and 4". he can only put it in "1 or 3", Which way works better ? In his case i am thinking of "1" because if i use "3" the air will hit the case before it hits the fin, the case will block some of the air.
That is for me, now for my friend. He has a Corsair 600T case, there is no way for him to set up the H100i like " 2 and 4". he can only put it in "1 or 3", Which way works better ? In his case i am thinking of "1" because if i use "3" the air will hit the case before it hits the fin, the case will block some of the air.
Comments
Assuming that you mean it's on the top of the case, you probably want either 1 or 2. 3 or 4 will be best for CPU temperatures, as it blows cool air from outside of the case across the radiator. The problem with these is that they then blow the heat from the CPU right into the case, which heats up the interior of the case. 1 or 2 blow ambient air from inside the case across the radiator, which won't cool the CPU as well, but it gets the CPU heat right out of the case. That keeps the ambient temperature inside the case down, which is better for everything else in your computer--including but not limited to your video card.
As for a choice between 1 and 2, I'd go with 2. Video cards almost invariably have a fan blowing air at the heatsink rather than pulling air from the other side, so presumably they think that's more effective.
Heat always rises so you would want the lowest point to be your intakes and your highest points to be the exhaust.
As for the chip. My system does better when the fan pulls the heat off and blows it into the case.
Out of all of those options I'd pick the least noisy one. I've got 2 systems running on stock heatsinks and case fans and am running AMD video cards. During the summer the room temperature often exceeds 95 degrees Farenheit. I've never had an over heating problem. The fans rarely spin up more than their normal level.
Fan noise is more of a problem than the cooling.
My next system will use a micro ITX box and eSATA cabling as a separate control point with easy access to an optical drive so I can move the main box as far away from me as possible. I'll also be using some sound deadening materials on the main box.
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Case fans generally go from front to back (pulling in cool air in the front, and exhausting it out the back - this is the ATX standard). Fans on top tend to exhaust, fans on the side panels can go either way (usually they exhaust because they are typically near the CPU fan, unless they are paired with a top fan or several rear fans, in which case they may intake).
Heat sink fans generally blow into the heat sink if you only have a single fan. This gets more air across the fins than trying to pull air across them (better static pressure over the exhaust side of a fan), and tends to perform a bit better than trying to suck cool air over them.
Push/pull your going to have one on each side (one pushing air in, one pulling air out).
Some people make a case for trying to have a positive pressure inside the case (more intake fans than exhaust fans) - I don't know that this helps much with dust, but it can't hurt anything.
With liquid radiators - always exhaust those out, and following the general rules for heatsinks (fans blowing into the radiator, unless you have push/pull). So Option 2 is your best bet.