What temp should Athlon XP 2100+ be running at without any overclocking, with heatsink that it comes with and with 2 case fans (1 intake)??? This it pretty much my cooling concept right now.... As I said earlier I’ll be installing a better heatsink or water cooling once I get money saved up. I plan on adding an extra (outtake???) fan on top of case. Placing a filter on front intake fan so I can move my case close to AC duct. I also plan on placing another case intake fan with filter right above CPU heatsink. Should this be enough???