The system (case temperature?) reads 38C / 100F. And the cpu reads 31C / 87F. Is this a normal temperature?? I think the room temperature is somewhere around 25 - 30C.. The sun has been on this side of the room wall during the day, making the room a bit warmer than the other rooms I have just added an extra fan to blow out the hot air behind the power supply, since it comes with one fan only. This seems to work, i can feel that hot air getting a bit cooler. The 120 fan that came with the case (rear fan) was exchanged to a better one, that is controlled by an external potentiometer. Also, I did at to the "duct" thing on the case door an extra fan to suck in cool air and blow that to the cpu (if this is a stupid mistake, please let me know..). Normally that plastic duct does not reach the top of the heatsink/fan combo completely, but when I added an extra fan it did reach. The fan that was added there does not operate on 12v right now, it operates at around 5v, I did solder on an external fan control to it aswell - just in case. The case is a mystiq coolmaster. I wish that the motherboard would have had more fan headers, can only connect one extra fan to the system, which I think is a bit bad. Can I connect more than one fan to the "system fan header" (not the CPU header)? (System has been under load for some time now - doing some work).