Device shuts down unexpectedly.
Device shuts down unexpectedly.
It appears the PSU is functioning normally, but other parts are malfunctioning. This issue might stem from overheating, age, or sudden power surges.
What hardware is installed? When does it power down, even when idle or under stress? What are the ages of parts such as the PSU? Have you already attempted any diagnostics? If not, consider replacing components with verified replacements; the PSU seems like a likely starting point.