Do I need more case fans in my new CM?

[ricleo2]

I just built a new computer with a CM 690II Advance. I stress tested the CPU and the Video cards getting a high of 57 C and 87 C respectively. I only have the fans that came with the case installed. Based on the temps do you think I need more fans? I can install one more exhaust fan at the top, one on the side panel, and one more at the bottom of the case near the power supply.

I5 750 with large heatsink and fan
2- AMD 6870 in crossfire.

Thank you.


Power supply for sale: http://forums.anandtech.com/showthread.php?t=2126038

 

[BoomerD]

What heatsink and fan on the CPU?

You should have:
1) 140 mm fan in the front,
1) 140 mm fan in the top
1) 120 mm fan in the back

If the 140 on top and the 120 in the back are used for exhaust, you could use more intake.
Do you have roon between the CPU cooler and side panel for a fan? That'd blow cooler air directly onto the CPU/Vid card, plus should help reduce the negative air flow in the case. (cm says you can mount up to two 120 mm fans on that side panel)

 

[ricleo2]

What heatsink and fan on the CPU?

You should have:
1) 140 mm fan in the front,
1) 140 mm fan in the top
1) 120 mm fan in the back

If the 140 on top and the 120 in the back are used for exhaust, you could use more intake.
Do you have roon between the CPU cooler and side panel for a fan? That'd blow cooler air directly onto the CPU/Vid card, plus should help reduce the negative air flow in the case. (cm says you can mount up to two 120 mm fans on that side panel)

Yes, I could install just one on that side panel because my heatsink would be in the way for another one. But just based on my loaded CPU and video card temps, do I really need it?

 

[Makaveli]

I just built a new computer with a CM 690II Advance. I stress tested the CPU and the Video cards getting a high of 57 C and 87 C respectively. I only have the fans that came with the case installed. Based on the temps do you think I need more fans? I can install one more exhaust fan at the top, one on the side panel, and one more at the bottom of the case near the power supply.

I5 750 with large heatsink and fan
2- AMD 6870 in crossfire.

Thank you.


Power supply for sale: http://forums.anandtech.com/showthread.php?t=2126038

I would.

I just picked up that case for rebuild. While the stock fans are quiet they don't push alot of air.

I replaced all stock fans with higher quality higher CFM fans. However, I have a fan controller in my rig so I am able to control the noise output of each fan. Also the on/off switch for front case fan is not being used as the new fans don't have the same power plugs as the default CM fans.

My build is here.

http://forums.anandtech.com/showthread.php?t=2124879

 

[ricleo2]

Ok, I installed two 140mm fans. One extra exhaust fan at the top and one intake fan on the side panel. The loaded CPU temps went down but the two video cards temp stayed at 88c when loaded from Furmark. New case/build is very quiet. All is good.