pc issues. is it my motherboard?

Emil00

Reputable
May 4, 2015
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Troubles with my pc build?
I built my desktop some months ago, and it has worked most of the time, but sometimes I have some problems, like my pc having to reboot when trying to wake it up from sleep mode, and recently I got this problem that the pc wont show anything on my monitor.
It also randomly (it seems) crashes and has to reboot.

Do you know what is the reason?
I am beginning to blame my motherboard, Gigabyte GA-Z97X-GAMING 3. Because my friend has almost exactly the same build as I, except he has an asus motherboard, and he doesnt have any problems..