Components; CPU -Intel E8400 MB -Gigabyte GA EP35-DS4 HD- Seagate 500GB Case -Coolmaster CM690 Optical- LG GGW-H20L Memory- Corsair 2x 2GB ddr2 1066 Mhz PSU -Be quiet 650w dark power. OS- Vista 64 bit Graphics- gigabyte HD4850(ati). Built the above and went like a dream, then when I turned it on it immediately turned off and just kept goind on/off every 2-3 seconds. I rebuilt out of the case- the same. I removed each component in turn (just left with psu,cpu and MB)always the same. Then got new PSU, the same. then got replacement MB and CPU-- AND its still the same. IT Must be me ! can anybody help please. I've just run out of options.
have tested each piece of hardware? First check your wiring to make sure they are right. next test your power supply. then check your ram...
This sounds like a definite power supply/electrical problem. Try and plug your PC to another socket or add a UPS.
