fans facing right way for best airflow?

[sergio.lopezsevilla]

So all three fans in my pc case have the center circle tag thing facing inward so one of 2 of them are blowing towards the hdds and the one on top is cooling the gpu i think and my last one is on the top left corner cooling the cpu i guess but are they rlly because the gpu gets somewhat hot not rlly hot but a little bit so are my fans the correct way?

 

[Jamie_69]

They should all be facing the same way - the air should flow from the front and out the back. The one in the top left should be removing the warm air from the case, not recirculating it back into it.

 

[sergio.lopezsevilla]

They should all be facing the same way - the air should flow from the front and out the back. The one in the top left should be removing the warm air from the case, not recirculating it back into it.

so which way should the label be facing for all three?and will it keep the gpu cooler

 

[Aeacus]

Air is always drawn in through front of the fan and exhausted from the back of the fan.

If you can see this then it is the front of the fan:

But if you see that (the side with visible center frame and wiring) then it is the back of the fan:

Also, you can't always tell the fan orientation by the small sticker logo on the fan since not all stickers are put at the front side of the fan. Some fans have their sticker at the back, e.g Corsair AF140L,
Front:

Back:

So, is the sticker at the front of your fans or at the back of your fans?

 

[sergio.lopezsevilla]

Air is always drawn in through front of the fan and exhausted from the back of the fan.

If you can see this then it is the front of the fan:

But if you see that (the side with visible center frame and wiring) then it is the back of the fan:

Also, you can't always tell the fan orientation by the small sticker logo on the fan since not all stickers are put at the front side of the fan. Some fans have their sticker at the back, e.g Corsair AF140L,
Front:

Back:

So, is the sticker at the front of your fans or at the back of your fans?

all wires are facing the front so i guess all my fans are placed backwards do i switch them all?

 

[Aeacus]

Since hot air rises, case's airflow rule of thumb is: front & bottom - intake; top & rear - exhaust.

Here's how you should place your fans:
front fans - wires inwards so that fans would be intake
top fans - wires outwards so that fans would be exhaust
rear fan - wire outwards
bottom fan - wire inwards
side fan - doesn't matter much but i've run those as intakes as well (wires inwards) for additional fresh cool air for GPU/CPU.

 

[nobspls]

You need to be able to measure you temps to really know if you are improving you cooling. Generally this the rule of thumb I was told, "you want fans to blow at the target, because sucking just generally sucks". The funny thing is almost all PC cases are built with at least one exhaust fan out the rear, and it is supposed to suck out the air from inside the case, but that is because the assumption is generally true that the air inside the PC is warmer than the surrounding ambient air, so you will need an exhaust.

 

[Aeacus]

You need to be able to measure you temps to really know if you are improving you cooling. Generally this the rule of thumb I was told, "you want fans to blow at the target, because sucking just generally sucks". The funny thing is almost all PC cases are built with at least one exhaust fan out the rear, and it is supposed to suck out the air from inside the case, but that is because the assumption is generally true that the air inside the PC is warmer than the surrounding ambient air, so you will need an exhaust.

For cooling aspect, negative pressure is better than positive pressure and when it comes down on having only 1 fan, mounting it as rear exhaust will give better cooling than mounting it as front intake. That's why cases that are shipped with only 1 fan have that fan as rear exhaust.

Here's airflow 101 for anyone who's new regarding PC's cooling,
link: http://www.tomshardware.co.uk/faq/id-1858957/airflow-101-setting-fans-keeping-computer-cool.html