Symptom:
1. When I play WarCraft 3/Morrowind/Battlefield1942, sometimes the screen freezes and metallic sound continues to repeat itself.
- When I check the temperature, it is around 52~57 degrees C.

2. When the system is idle, CPU temp is around 49~51 degrees C. When the system runs the program it is around 55~59 degrees C.




Here is my system spec

Powersupply:
+5V and +3.3V combined load 160W
total output 300W



CPU & Mobo:
Athlon 1800+ oc to 1900+
Volcano 6 4550rpm heatsink
*plus 2 case fans

K7S5A mobo



Drives:
1 13.6gig hard
1 40 gig hard
1 80 gig hard
1 CD-rom drive
1 CD-RW drive
1 floppy (duh)


Cards:
ATI Radeon 8500
SBlive
ATA133 controller card
network card (cable connection)


OS:
Windwos XP prof.




I want to know what is wrong with my system.
It is keep crashing on CPU intensive 3D games!!!
It is annoying!
(I have suffered 5 straight losses in Battle.net Ladder... FRUSTRATING!)