Question about system fans set up

[winterlude]

Hi all,
I've heard a lot of you mention that you have a two system fan rig with one in the front for the intake and one in the back for the exhaust. I can understand the one in the back, but the one in the front I don't quite understand because most cases I've seen (mine included) have no vetilation holes in the front of the case. So is the fan in the front primarily for pushing existing air (in the case) to the back to be vented? If so, it seems that the one in the back is really the key.

I just built an upgrade system and I've been having heating issues (as those of you that have been reading my posts are well aware).

My ECS K7S5A board only has one set of pins for a system fan. Do fans need to be plugged into the board (i.e. if I have more than one), or do they just need to hook up to the power supply, and the pins on the motherboard are just for rpm regulation and monitoring purposes?

My computer has become unusable, with multiple crashes and other erratic behavior, and I think that it's temperature related (43C in the case; 61 CPU--nothing overclocked).

Thanks

 

[microAmp]

For the high CPU temp, make sure the heatsink is seated correctly and you are using thermal grease or better Artic Silver. If the heat sink has a thermal pad on it, remove it and use the grease or Artic Silver.

You don't have to plug the fans into the motherboard, the advantage of plugging into the motherboard is you can monitor the RPM's on the fans, if one goes out you'll get a warning; from BIOS or a program like Motherboard Monitor.

I used to ran with with no intake fans and only out take fans, when I switched to a new case, I changed up with 2 outtake fans and one intake fan, my case temp and CPU temp also dropped, 5 C for my CPU. Even though my new case doesn't seem to have any vents but it does pull air from underneath the front beval.

Edit: Oh, my case temp is 31 C, and room temp is about 80 F, so whatever that is converted to in C.

 

[DeviousTrap]

Usually the front of the case has ventilation holes. If you dont see them they might be on the bottom, The bottom of the front faceplate. Also not oly do you want exhaust you want air movement in the case so the the hot air gets out well.

 

[crabbyman]

I hope this helps.......Antec makes case fans that are different sizes and control the speed of themselves as it gets hotter/cooler. All you need to do is plug them into a power supply and they will do the rest. Right now I have three of the Antec fans and they are pretty quiet......two in and one out.......but I think I am going to change to the two out option.