System powers off during startup, just a single time when disconnected from power source
System powers off during startup, just a single time when disconnected from power source
Hello, your situation sounds unusual. You often disconnect your PC during thunderstorms and then experience immediate shutdowns when you power it back on. This seems to happen only after unplugging, not during normal operation. With your current setup—upgraded components from 2019—this could indicate a compatibility or stability issue. It might be wise to investigate further or consult a technician before continuing.
First I’d replace the CMOS battery with a fresh one. This small CR2032 cell should cost almost nothing. It’s possible the power source is malfunctioning, so testing with another supply might help. Another thought: if you have a USB device needing high current, it could trigger a shutdown at startup. Try booting without any USB devices to check if the problem disappears. For reassurance, as long as the issue only occurs when unplugging from the wall, you’ll know exactly what’s happening. I wouldn’t stress too much unless it happens every time. If you need certainty, consider buying a UPS for backup power so you don’t have to disconnect your computer. Hope this clears things up.
the motherboard lacks a dual BIOS configuration, which suggests another cause. have you checked if the BIOS is up to date? how long have you noticed these problems? did you let the computer fully shut down before turning it off, or do you unplug it and wait a few seconds after everything stops? it seems related to power management rather than the PSU itself, possibly involving the "what to do when currents black out and come back up" setting.
BIOS is the most recent update, but it's difficult to pinpoint when the problem began because I haven't left it plugged in for extended periods. The computer was off overnight, and I took it off this morning for about an hour or two. I'm not sure what settings you're referring to.
Choose a solid surge protector and let it handle the load. If things go wrong, the PSU should already have a built-in safeguard. The CMOS battery seems like a solid first step.
Is there an option to speed up the initial launch? When activated, it transforms a standard shutdown into a brief restart, making boot quicker. Adjust this preference in the Power Settings menu via Control Panel -> All Control Panel Items -> Power Options -> System Settings, located in the Shutdown section.
With the most recent UEFI/BIOS for your motherboard, this setup is likely performing RAM training or adjusting configurations. If you haven’t updated yet, reset the CMOS, reapply your preferences, and verify functionality. Besides the battery in the CMOS, consider erasing it and then applying custom settings to determine if that fixes the issue. Running RAM at an overclocked speed might also trigger this behavior.