Try and find what proccess they are running and force them to stop.
Try to shut all non system important proccesses down in the task manager.
DFI Lanparty UT NF4 Ultra-D
AMD Athlon 64 X2 3800+ @ 2.72Ghz
Thermalright XP-90 with 92MM fan
2x PC3200 512MB Corsair Value Ram
eVGA Geforce 7800GT CO