Anything changes if switch airflow of CPU fan from one side to another ?

[peaceduke]

I mean (only fan from front to back )any temp changes or any possible damage or something like that

 

[boosted1g]

You dont want to change airflow.

Your case (and physics) is designed to get cold intkae from bottom front and as heat rises it exits to top rear of case.

By switching the fan like that, you are now sucking in hot air and pushing it against the cool air coming at your cooler.

This not only ruins the cool air flow of the cpu cooler but creates unnatural flow of air that ruins the cooling for the gpu and everything else in the case.

 

[COLGeek]

Moving the fan to the other side of the heatsink and keeping the air moving in the same direction will produce similar performance results.

In your second picture, you could cause a performance decrease, if you don't also reverse the direction of the case fan that sits right behind the heatsink, in most systems.

Typically, front, bottom, and side fans pull cool air into the case. Top and rear fans suck hot air our of the case. The heatsink fan should flow the same as the flow through the case.

 

[boosted1g]

Moving the fan to the other side of the heatsink and keeping the air moving in the same direction will produce similar performance results.

In your second picture, you could cause a performance decrease, if you don't also reverse the direction of the case fan that sits right behind the heatsink, in most systems.

Typically, front, bottom, and side fans pull cool air into the case. Top and rear fans suck hot air our of the case. The heatsink fan should flow the same as the flow through the case.

Even reversing the rear exhaust fan to be an intake the case (outside of very select few) is not going to have fan to turn into exhaust in the top front, so you will still be decreasing cooling efficiency. Even if case did have fan where the CD drive usually is, the fact that the cooler has to push the air 8 inches to the exhaust fan instead of 3 still decreases efficiency.

 

[peaceduke]

thanks to everyone participate
I think there is no reason to continue discussion before I can visually show a case
I'm planing homemade from rustless steel for 3 motherboards (server stile, flat)

 

[boosted1g]

I would still do it the standard way because there will be less distance to push to hot air out to the exhaust path simply on the standpoint of the dimensions/design of the motherboard.