Launching Game Causes Computer Restart

Hello all,

First post, made this account specifically to ask about an issue that has popped up recently, apologies if this is the wrong board.

I’m a casual player on Steam, in all I have about 67 hours in 2 years, so I go long stretches without playing. Recently I’ve felt the urge to play, so I grabbed all the missing DLC on sale and tried to fire the game up. Unfortunately, time and again the splash screen will display, then my whole PC will restart. I tried disabling Rise of Rome and was able to launch the game. Refunded Rise of Rome, and I spent a few hours yesterday happily playing Battle for Greece with no issue.

Today, however, the game is right back to causing restarts while loading. I’m at a loss. I’ve tried the normal stuff such as verifying files, but am stuck. I’d rather not keep subjecting my poor computer to random restarts, so I’m looking for help. My PC build is a couple years old, but reliably runs new games full blast without issue. If Cyberpunk with full path tracing isnt an issue, I’m doubtful this is hardware related.

Windows 10
AMD 5900X
NVIDIA 4080 Super
Game running off of an NVME SSD

Please help.

Thanks,

Ryan