Hey guys, see if you can nail this one. I recently bought a new PC case, with a PSU. I took all the pieces out of my old computer and put them in the new case. (Admittidly this is the first time I tried this.) After hours of work and trial I managed to get it all to turn on, but I'm getting 'random' restarts, here are some observations about the restarts: - Happens usually after I enter my password to login - Sometimes logs in and will work for anywhere between 5mins and 3 hours - Won't restart until I login, can sit at login screen for hours. I have Windows XP, and nothing in the event log helps me. I have turned automatic restart to off. Also the PSU supplied is more powerful than my previous one I think. Overheating should not be an issue I am pretty sure and my RAM is being detected. I also did a disk check and it showed nothing. I'm out of ideas All help appreciated, cheers. :blush: P.S. Would the order of the Power SW, Reset SW and HDD LED wires cause this, I do not have the manual for my MOBO so cannot be certain if they're in the right places.