[darkdays]

I believe this is the right section for this. Not sure what the problem includes but i think its hardware.

Anyways the story. Well, few weeks ago I had a problem with my custom built computer restarting really randomly. This happened with nothing special running or any changes. It just decided to reboot from windows 7. Then before it got past posting or past the bios stuff, a few more reboots. If I hit delete to enter bios options my computer stays running. I solved the problem by resetting my case open status to no.

Now the problem is occuring again with the same symptoms. This time I have no chance of getting into windows or ubuntu fully. Wierd thing is I can access bios option without rebooting issues and can run memtest for some time without errors or reboots (until i decide to shutdown that is). Any idea what is causing this problem? Seems very unusual. I have had this computer for a few months and have changed a hard drive and processor out and no problems with the changes. Last hardware change was 1.5 months ago.