[SOLVED] Took out fan in the rear of my pc. Is this ok?

[Dlaing]

So I just built my new pc. I have 2 fans in the front where the power button is, and 2 on top. I removed the one in the back that pushes air out, and the reason why is because I put 2 fans on my cpu cooler (it's a vertical one) and both the fans are pushing air toward the fins, meaning that there is air being pulled from the back. However, like a said I have 2 fans in the front and 2 on top, with 6 fans in total including the 2 CPU ones. I know it's sounds stupid, but is this air flow okay?

 

[Randi Poling]

So I just built my new pc. I have 2 fans in the front where the power button is, and 2 on top. I removed the one in the back that pushes air out, and the reason why is because I put 2 fans on my cpu cooler (it's a vertical one) and both the fans are pushing air toward the fins, meaning that there is air being pulled from the back. However, like a said I have 2 fans in the front and 2 on top, with 6 fans in total including the 2 CPU ones. I know it's sounds stupid, but is this air flow okay?

I would maybe move one of the top fans to the back to help pull the air out of the case that is being pushed through the CPU cooler as with nothing there to assist with pulling that air out, it is just hitting the back of the case and slowly being exhausted out of the top.

 

[Paperdoc]

I think Randi missed the problem, IF i understand the OP. I understand it to say the the two fans on the CPU cooler (push / pull arrangement) both move air from the BACK of the case towards the front. Thus they would complete with any rear exhaust fan for air flow in the same immediate area. Not a good arrangement. I presume (is this right, OP?) that the two front fans are intakes, and the two on top are exhausting out of the top.

My preference would be to keep the rear fan in place, but ONLY if you can reverse the mounting of the two CPU cooler fans so that they blow air through the heatsink in the opposite direction - from front to back of the case. That would require removing them, turning each fan around and re-attaching each to the heatsink. Usually that's not a tough job. BUT it also means that there must be good air flow from the area in FRONT of the CPU cooler system (between its fan and the case front) so that the re-oriented fans do have a good source of cool air to use. IF that area has good air source AND you can re-orient both those CPU cooler fans, you could do this. Otherwise, I agree that disconnecting and removing the rear fan is correct.

 

[tennis2]

Sounded to me like each of the CPU fans blows air into the heatsink from opposing directions. Depending on whether the fin stack has open or closed-off sides, this could range from slightly to very counterproductive.

You want air flowing from the front of the case (intakes), THROUGH the CPU heatsink, and then out the back of the case. Having that rear exhaust fan also helps to remove GPU waste heat out of the case before it get sucked into the CPU fans.

 

[Randi Poling]

I think Randi missed the problem, IF i understand the OP. I understand it to say the the two fans on the CPU cooler (push / pull arrangement) both move air from the BACK of the case towards the front. Thus they would complete with any rear exhaust fan for air flow in the same immediate area. Not a good arrangement. I presume (is this right, OP?) that the two front fans are intakes, and the two on top are exhausting out of the top.

My preference would be to keep the rear fan in place, but ONLY if you can reverse the mounting of the two CPU cooler fans so that they blow air through the heatsink in the opposite direction - from front to back of the case. That would require removing them, turning each fan around and re-attaching each to the heatsink. Usually that's not a tough job. BUT it also means that there must be good air flow from the area in FRONT of the CPU cooler system (between its fan and the case front) so that the re-oriented fans do have a good source of cool air to use. IF that area has good air source AND you can re-orient both those CPU cooler fans, you could do this. Otherwise, I agree that disconnecting and removing the rear fan is correct.

Pretty much, I misread what he typed. Sorry.

 

[digitalgriffin]

So I just built my new pc. I have 2 fans in the front where the power button is, and 2 on top. I removed the one in the back that pushes air out, and the reason why is because I put 2 fans on my cpu cooler (it's a vertical one) and both the fans are pushing air toward the fins, meaning that there is air being pulled from the back. However, like a said I have 2 fans in the front and 2 on top, with 6 fans in total including the 2 CPU ones. I know it's sounds stupid, but is this air flow okay?

Why not just reverse the CPU heatsink fans and have them push air out towards the rear? That would more sense and be better balanced.

 

[Dlaing]

Sorry it took so long to read your replies, I have taken decided to make the CPU cooler fans both push air towards the back, giving in even more airflow and still keeping the CPU at a good temp. Thanks for the tips!