My computer reboots by itself and monitor says no input

simon y

Reputable
Oct 15, 2014
2
0
4,510
Specs:
Amd A8 3780k processor
Asus F1A55-M motherboard
Mushkin silverline 2x4 gb RAM
640 gb hard drive western digital

my computer will randomly just reboot by itself for no reason at all and the monitor says no input sometimes when it reboots... but not all the time. do i need a new motherboard?