Shutdown - Automatic restart

SM666 · 19 Sep 2009 at 15:58

Having just completed an upgrade, i am having a problem where i turn the computer off and it automatically restarts.
I have been through quite a few things to try and solve this
Updated BIOS
Disabled all power management options in BIOS and device manager
Disabled automatic restart after a system error
Used Windows XP and Windows 7
Tried different hard drives
Tried different graphics cards
disconnected case features(sound usb etc) from the motherboard
disconnected DVD drive
Tried both USB and PS/2 keyboards
Tried the sticks of ram individually and in different slots
Ran Memtest

Im guessing it could be my PSU but some help would be appreciated before i go out and buy a new one.

My current spec is
MSI GD65
Ripjaw 12800CL8D 4GB 1600mhz
I5 750 2.66
Seasonic SS 430HB

SM666 · 20 Sep 2009 at 08:56

Thanks for the reply. Double and triple checked the connectors. Even disconnected them altogether and used the power button on the M/B.

SM666 · 20 Sep 2009 at 19:22

Any other ideas? And i guess i may as well ask for advice on a psu upgrade aswell.

Cheers again

SM666 · 21 Sep 2009 at 19:24

Any ideas of a PSU for about £70?

SM666 · 1 Oct 2009 at 16:55

Ok, got a new psu in, gave a fresh install and still the same problem. Driving me crazy now, any other ideas?

SM666 · 1 Oct 2009 at 19:00

Cheers. Just finished trying that. Still the same. Im guessing one of the part is causing it, but cant be sure to RMA.

SM666 · 2 Oct 2009 at 11:41

Was getting desperate last night so was trying every little thing again. Took the CMOS battery out and back in again. Still nothing. Then for some reason i decided to replace the battery with the one from my old motherboard and it worked. Strange.

Anyway, thanks for the help guys. Much appreciated.