Picture is not of my build, but attached as a reference. I have SLI GTX 670, with two 140mm exhaust fans on the top of the case, and one intake fan behind a radiator on the left of case (left meaning toward the I/O). On the in-picture removed panel, there is a exhaust fan directly over the GPUs.
What are your recommendations for the right side (i.e. front) of the case? There is currently 1 120mm intake. Should I add in another exhaust to have an upper pull lower push? Have them both intake, or both exhaust?
Furthermore, the bottom of the case has room for another fan. Should I insert an exhaust fan here?
The cards are stock OC, but I'd like to add another 50-100 mhz if I can. I blow my GPU fans at 65%-70% and get temps that hover at 67. I'd like to push the GPU fans only at 60% if I can, because that's when noise gets pretty noticeable.
For a side question, I have a sound card between both GPUs. There is very little distance between the sound card and the upper gpu (it may even be touching the case). Is this a problem? What's a fix if it is?
For instance, I've got Gigabyte 670's in SLI. I thought that turning the side intake into an exhaust would be the smart way to go. As it turned out, it didn't make that much of a difference in my case.