My machine has started shutting itself off after a few minutes on, everything goes off.
A few seconds (3-5) after everything has stopped the lights come back on, the cpu fan and gfx card come on again. They spin for a second, then everything goes off again. A few seconds later same things happens again, light come back on, fans spin for a few seconds then go off. This repeats seemingly forever.
If I leave it for a while I can power the machine back on for a while and it will boot again. It will then stay on for a little while again before power off. Rinse and repeat.
Is this likely to be power supply or something else? The machine has been up and running for a couple of years before this.
EDIT from the bios:
+3.3v : 3.152
+12V : 11.731 and seemingly going down 11.668 -> 11.604
CPU Temp : 31C
CPU FAN Speed is ok
I left the machine on in the bios screen to see if it went off just in bios and after a few minutes it powered off.
Does this point to power being the issue?