Z490 Aorus Master crashes when idling

[islandhoppers]

Gigabyte Z490 Aorus Master crashes only when idling. System not overclocked, crashes about once a month on average, goes to UEFI screen. Windows 10 doesn't go to blue screen of death, running Gigabyte F8b BIOS.

Event Viewer error:

Critical Error, Event ID 41 - Kernel - Power
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

[dmdilks]

Did you try to change the main 110 power cord. I had something like that did the same thing happen to me. I thought it was the power supply. Change it and it did the same thing.

I would take the computer from my desk. Plug it in my computer work shop in the back room everything would be fine. But the funny part I never pickup on at first.

It was the power cord. I just had my backup computer in the work shop basically do the same thing. Went to turn it and nothing. Look through the glass and could see the board had power. Change the power cord it boot up fine.

They do wear out over time if you plugging and unplugging it a lot.

[shadowsports]

Gigabyte Z490 Aorus Master crashes only when idling. System not overclocked, crashes about once a month on average, goes to UEFI screen. Windows 10 doesn't go to blue screen of death, running Gigabyte F8b BIOS.

Event Viewer error:

Critical Error, Event ID 41 - Kernel - Power
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

Gretings,
We are going to need your full system specs.  Also, what build of windows, etc.  Are you overclocking, etc.  What you describe can be caused by so many things.  Only thing we can do is speculate without more information.

[islandhoppers]

Spec: i7 10700K - Not Overclocked, Gigabyte Aorus Master Z490 F8b BIOS, Corsiar 2x16GB LPX 18 22 22 42 64 1.35v
MSI GTX 1080Ti Gaming X Trio, Corsair HX850i PSU, Noctua NH-D15 CPU Cooler. Windows 10 20H2. Samsung NVME x2, 4 Samsung 860EVO SSD.

[shadowsports]

Spec: i7 10700K - Not Overclocked, Gigabyte Aorus Master Z490 F8b BIOS, Corsiar 2x16GB LPX 18 22 22 42 64 1.35v
MSI GTX 1080Ti Gaming X Trio, Corsair HX850i PSU, Noctua NH-D15 CPU Cooler. Windows 10 20H2. Samsung NVME x2, 4 Samsung 860EVO SSD.

Greetings,
Review this MS KB and see if more information comes to light about the behavior:

https://docs.microsoft.com/en-us/windows/client-management/troubleshoot-event-id-41-restart