Desktop restarts during use

  siouxah1 13:24 27 Aug 2008
Locked

Desktop. XP SP3
Core 2 Duo 4GB RAM
Gigabyte Geforce 8600 GTS.

Have been having trouble with the PC restarting, as if using the reset button, at irregular times. Sometimes several times in a minute to working well for an hour or so.

Entered BIOS and waited. Still restarting. My conclusion is that it is a hardware problem.

Disconnected reset from motherboard. Same problem.

Disconnected all drives apart from boot disc. Same problem.

Now at the stage of not starting at all, apart from the fans kicking.

Have checked the fans all working. Apart from checking the Graphics card fan, but the temparatures on all items reading normal.

My conclusion is that I have a duff PSU (550Watt), or a short in the system.

Any ideas before I purchase a new PSU and rebuild?

Siouxah1

  crosstrainer 14:32 27 Aug 2008

I agree, it is most probably your PSU...Can you borrow one to test the theory? If not go for a quality make such as:

click here

The Hiper's in the above link.

  siouxah1 15:32 27 Aug 2008

Thanks for that, have just obtained another to give it a try.
Will let you know.

Siouxah1

  siouxah1 16:10 27 Aug 2008

but no luck with replacement PSU. The PSU and CPU fans spin for a second then stop. This is repeated continually. Sadly I think it is a bin job. Either CPU or Mboard.

  siouxah1 20:07 02 Sep 2008

Just for information.
Turned out to be the mainboard. Connected CPU to another mainboard all working.

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