My 2nd build, some reason it keeps restarting out of no where, worked fine for 1st month of usage. Had the same issue before but all i did the first time was reinsert all parts back into the slots. Now it has the infinite loop again wondering for a real fix, do you think its the RAM, motherboard, or PSU faulty
ASUS P8Z77-V DELUXE
ASUS HD7850-DC2-2GD Radeon HD 7850 2GB
Seagate Barracuda 3TB
OCZ Agility 3 240gb
CORSAIR XMS 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1333 Desktop Memory Model CMX16GX3M2A1333C9
COOLER MASTER Silent Pro RS850-AMBAJ3-US 850W ATX12V v2.3 / EPS12V v2.92 SLI Ready 80 PLUS BRONZE Certified Modular Active PFC
COOLER MASTER HAF X Blue Edition RC-942-KKN3 Black Steel / Plastic ATX Full Tower Computer Case with Black Interior and Four Blue LED Fans-1x 140mm rear fan, 1x 200mm top fan, 1x 200mm side fan, and 1x 230mm front
You can try unplugging the system and clearing the cmos.
+1, reset the bios to factory defaults and see if it boots then. If it does then some setting is wrong and needs to be changed, IE if you were overclocking.
Other than that you would have to try removing stuff and reinstalling them one at a time. If that doesn't work then you are down to watching the power supply voltages to make sure they don't dip too low or start off low.