Happens most times just as Desktop display is completed. Yesterday started ok and ran 2 hours till I shut down. Today restarted itself 4 times. Then I tried Safe Mode and all ok. Tried normal again and ok for an hour now. Any ideas please. Had suspected overheating but this ruled out by problem at start and temp ckd anyway. kerses
Just a suggestion but could you check that the Ram Sticks are seated OK?? You could also try gently touching the mains input plug at the back of the computer base unit to see if it has an intermittent or loose contact.
Many thanks to all for usual fast response. Have tried all suggestions but still same problem.Usually if I then restart in Safe Mode, do a few jobs and then restart normal, all goes well. Will keep trying. Tks agn kerses
Still trying. Disconnected IDE2 skt (CD-ROM's) and moved hdd cable there. Slave D drive running during startup, so disconnected that. Then more or less OK as I thought, but still intermittently restarting. Now son-in-law tells me he has a suitable disused mobo to try, so maybe that will prove it one way or the other. None of the other suggestions have fixed it, but tnx anyway. kerses