Frequent Boot Device Not Found?

[Tony Boling]

CPU: Intel i3 8300

Mainboard: Gigabyte H370 AORUS Gaming 5 Wifi

RAM: Corsair Vengance LPX 2x8 2400mhz

PSU: Corsair TX650w

Display: Using onboard now

 

So this started a few months ago. I came downstairs to find my machine in BIOS. When I rebooted, it couldn't find the book drive. I had an old GeForce graphics card in at the time so i removed it and re-seated the RAM and got the same issue. I was using a older spinning SATA drive as my boot disk so I put in a 128GB m.2 from my son's laptop that I had upgraded and it booted but I would still occasionally find it at the BIOS screen. What I noticed after a while was the VGA light on the motherboard would be on every time. For a few months in order to get it to boot to Windows I'd have to re-seat the m.2 and it'd work for a couple weeks until the next time. Then as a shot, I just started to try cold shutdowns and those were working but every so often it'd reboot itself and land on the BIOS screen saying no boot device found.

 

Mind you I tried both m.2 slots as well as all 6 SATA ports with the spinning drive and could only get it to operate with the one m.2. The SATA ports worked fine if they were just holding storage drives.

 

I've since built a new machine but if I could locate the bad seed with this current setup, would be nice to put in my younger kids room for him to play Minecraft or Roblox. Would be a shame to scrap the entire thing. I also have an i5 6500 that is in good working order far as I know. I was thinking recently that perhaps with that VGA light, it's something to do with the CPU since i'm using onboard graphics?