Originally Posted by gauthier613
Probably a dumb question but I'm asking anyway. With all this room in the back of the case, has anyone mounted a fan to the back side of a CPU? Or is this really pointless?
I'm not sure it would of any value. There really isn't much surface area exposed on the back of the motherboard of the parts that get hot for it to really make much of a difference. I'd be surprised if it lowered temps in any measurable amount, but you don't really know for sure until you try it.
Probably the best way to find out is to wire up a fan and have it loose and unmounted with enough slack in the wires that you can hold it in various places and positions in the back of the case directing air where you want it. Start a Prime95 test and then hold the fan in different places for a few minutes at a time and watch cpu temps, then remove the fan for a few minutes and continue to watch temps. If there is a noticeable difference in temps then this could be something that might allow you squeeze a tiny bit more out of your cpu.
If you try it, be sure to come back and let us know how it went. Just be certain that when you test that you try to isolate as many variable as possible and make the test as consistent and as easy to reproduce as possible.