My x3 is overheating when xp pro is on the loading screen. my motherboard plays the warning sound, and at first i thought it was no big deal cause the alert temperature was set to 60 celsius, but when i set the alert temp to 70 celsius, it still played the sound. i am using a stock fan and havent even overclocked it yet. i have 2 80 mm case fans working fine. Should i buy a better heatsink to reduce the tempurature, or is it just a software problem?