I have just installed a new CPU + new Heatsink and some ram,
I connected everything up and pressed the power button but the tower comes to life but the screen flickers but doesnt do anything and the keyboard flashs but turns off, the computer stays on but nothing happens and the little light that tells you when hd is doing something is on aswell.
i have a 250w power supply
the cpu is a Intel Pentium 4 3.4 Prescott 800 MHz FSB 1Mb Cache
my motherboard is an msi 645 ultra