Your device seems to not be POSTing, (not initializing the BIOS/UEFI) which most likely means you have bad hardware somewhere. Generally, a failed hard disk will not prevent the device from posting, it will boot normally and say “Boot device not found” or something of the sort. What you’re describing sounds like a case of a dead motherboard, as they tend to be intermittent when the fail, and then will fail full-stop without warning. As to fixing this, I don’t have any suggestions short of purchasing a new board and replacing the current one. Even so, it’s possible the issue is not the board, and is something else. Good luck, I hope that helped!