Random Black Screen With No Error Messaging

Hello all!

I'm new here, so let me first start off by saying Hello! I've been encountering a problem for the last few days with Windows suddenly shutting down and restarting. Typically the screen goes blank, any sound that is playing sticks *infinite loop until I manually restart the PC by holding down the power button*. I've not added anything as of late or done anything out of the ordinary. This is a custom built PC, that I built myself for the first time.

I like gaming and this PC runs anything I put on it without a hiccup. Yet these random blackouts have me worried. I ran MEMTEST and I was cleared across the board, no errors regarding memory. Any suggestions? Full system specs have been applied to my Profile.

Edit ***

Currently running updated version of Malwarebytes, also took a suggestion from a post about disabling computer restart on crash & kernel dump.

 

Hi AC, Welcome to BBS.
Have you tried your RAM one stick at a time?
All connections clean and secure?
CPU running in right temp range?
Drivers up to date?
Any recent updates that might have upset things? Neil.