Techies of Mastodon, please help! My brand-new gaming rig (AMD 9900X, MSI X670E GAMING PLUS WIFI) keeps shutting down during or shortly after boot. Sometimes it just goes to black, and other times it looks like Windows 10 spontaneously tries to shut down properly. Doesn't appear to matter what's loading or running, or what I'm doing at the time. My first guess is it's an overheating issue, but is this a common symptom of any other problem I should be looking for?