@Dab:
I bought a new mainboard with a dualcore processor.
Before this i was having a ASUS board with AMD 3500+. All the other components of my pc are the same. Only the internal dvd-rom is new.
Together with the new hardware i installed Windows Vista Business instead of my WinXP.
The PC works very fine, only game wont work.
@Joe:
I have enabled the cpu-heat-alarm in bios and use the Speedfan-Meter gadget in Vista-Sidebar.
The cpu temperature is never over 60°C when a game is running.
I bought now a new power supply unit with 600W (for 70€
).
I hope it will help.