Computer gets to bootscreen but restarts

[MarsXTC]

This problem started occurring yesterday. When I boot up my computer it keeps restarting on the boot screen. I can get into the bios just fine, but besides that it just keeps restarting

[Allan]

1) What is new or different since the last time everything worked properly (ie, new hw, new sw, virus, error, etc)?

2) Can you boot to safe mode?

[kbit]

 Just a thought , my computer was doing the same thing and it turned out to be the usb connectors on the case , unplugged the case usb and everything worked fine , must have been a short .