I have four fans in my case: a 120mm, and three 80mm's. I have a deal on my case that measures the temperature of the inside of my case. However:
1. I do not know the best placement for that thermometer inside the case.
2. I am getting 74 degrees most of the time, but it can jump to 80 degrees on hot days and when I am playing some games. Are these bad temps? (Degrees F)
3. The 120mm fan is blowing in, the 80mm on the side panel is blowing out, as with the 80mm on the top, and the one above the hard drive is blowing out. (See picture)
4. What can I do to achieve better temperatures? (If I need to, that is?) My case has room for two more 80mm fans behind the hard drive bays, but the case is already REALLY loud.
...and no, I cannot afford watercooling at the moment.