Clearly not a man of few words.
I have an N650SLI-DS4 that still runs, but I use it infrequently.
We can best help you after you create a detailed hardware list in the PC Specs portion of your forum profile http://forums.tweaktown.com/profile.php?do=editprofile at the bottom of the profile page or in your forum signature http://forums.tweaktown.com/profile....=editsignature.
Can you test with a different power supply?
Your current psu might be failing.
How old is the motherboard battery?
If you boot to windows, see if there are any unusual hot spots in your system, including your psu.
It will help if you run HWMonitor or a similar program that reports temperatures and voltages; this might point to a possible problem.
Did I use the semi-colon correctly?