i have an amd processor, should the cpu fan?

Question

be suckin air away from the cpu?.... also have one fan on side of pc tower and one at the back, which one should be putting air in and which taking out????

help!!!!!!!

Answer 1

Ok the CPU fan should be blowing air Towards the CPU's heatsink. The fan on the side of the case should be bringing air into the case and the fan on the back should be blowing air out of the case basically the front and side are intake and the back and top are exhaust. Good Luck HTH.

Answer 2

The CPU fan MUST move air across the heatsink and away from the CPU.

The case fans normally move the air from the front to the back of the case. The side fan you have should be bringing air in from the "front" the the second fan at the rear should be pulling the warmed air out of the case.

The Power Supply also has it's own fan, but it does help to remove the warmed air from the inside of the case.

Fell the exhausted air with your hand, or even use a thermometer, and see if the air is very warm. If it is you probably have an air flow problem. If not, then your cooling is working just fine.

In any case and just as a reminder. Shut down the PC; take the cover/side panel off and clean the inside. I use a natural bristle brush and a vacuum cleaner. Just be careful with the vacuum cleaner so you don't damage anything.

Hope this helps.

Answer 3

The CPU fan should be blowing air down the heatsink towards the CPU itself. Blowing air down the heatsink fins provides a much better airflow than having the fan suck air out of it, because when the air is pulled out of the heatsink by a fan, most of it enters at the very top close to the fan (the path of least resistance). The best example of why this is so is to blow air out your mouth towards your hand at a distance of about one foot. You should be able to easily feel the movement of air on your hand and it will probably make it feel cool. Now try breathing air in at a similar rate and you won't feel a thing on your hand because the air is being pulled from all directions so very little passes your hand. The same thing happens in the CPU heatsink, the fan must be blowing air down through the fins all the way to the base for maximum effectiveness.

As for case fans, unless you have a BTX case (which is unlikely as they are only used by large OEM computer builders like Dell, HP, etc) the general rule is front-fans blow into the case (they are the most important fans by far), side-fans if any also blow into the case (they provide directed airflow at key components but are far from essential), while rear fans (and top fans if you have any) always blow outwards. The PSU which is at the rear also has its own outwards direction fan. The key is to provide a good airflow through the case which cools most effectively, and the best way to do this is for cool air to be pulled in at the front (and optionally side as well), and pulled out at the rear.

People who say all case fans should be pointing out don't know what they're talking about, and probably have an over-heating computer as well. Those who make remarks about AMD processors having heat problems obviously don't realise that Intel's Pentium 4 was the hottest running consumer desktop processor to date, and also the only one where the manufacturer supplied heatsink and paste was often unable to keep the processor cool enough, which resulted in it throttling back to a lower speed to reduce its temperature. No AMD processor has ever had those problems.

Answer 4

Your CPU fan should definitely be sucking air AWAY FROM the CPU, and not onto it, like a previous answerer suggested.

The reason behind this is that the heatsink-fan (HSF) assembly does not cool the CPU as such, but rather makes the CPU run cooler by dissipating all that extreme amounts of heat generated by it. Therefore, it is very much necessary that the CPU fan should be blowing away from the heatsink, thus dissipating the heat. Also, the partial vacuum created by the suction of the fan draws cooler air onto the heatsink, and this adds to the cooling. There maybe specialised cooling solutions where the CPU fan would indeed blow air at the heatsink, but for the overwhelming majority of us, it is the other way round.

Among the other two fans, the one on the side of the tower should be suck air in and the one on the top (sometimes quite rightly called the 'blowhole' fan) should be blowing it out. That way, the side fan would blow air directly onto the motherboard and would direct the hot air from the components (which rises to the top even otherwise, because it is lighter) to the top of the case, where it would be blown out by the blowhole fan, creating a correct ventilation system inside your case.

This page is useful regarding case cooling:

http://www.heatsink-guide.com/casecool.htm

Answer 5

No, the fan on the heatsink should be blowing toward it and the motherboard. It sucks air in and blows it onto the heatsink/CPU. This is a common misconception that people have.

The only fan(s) that are pushing air out are the power supply and rear case exhaust fan. Some higher end case also have a fan on the top of the case that also suck hot ait out of the case. Front, side and the CPU fan push air into the case / onto the CPU.

Answer 6

dude relax The fans are taking the heat away from very important components of your computer if they didnt you wouldn't be able to use the computer long.its like a radiator for your car air cooled nothing wrong as long as the fans are blowing away. every once in a while keep the dust off them with a can of air. walmart sells them where the computer accesories are 5 dollars

Answer 7

Or if you are really adventurous oil cool the pc, bit of a novelty at the moment but this will be my next project with an old pc i have.

Answer 8

Technically all fans should be sucking air out, bcoz if fans are sucking air in, it would invite dust inside the computer, and when dust accumulates they get in to the most tiniest of spaces which lead to contact separation like copper contact on the memory to the board, etc.

So it is advisable that all fans blow air out.

Answer 9

hey pal an advice for u,i hav heard that amd processors might burst if they r not in an air conditioned room..so even though they make a hell a lot of noise wd one fan alone put another fan or switch to intel..