You can check your computer's default sound device by playing any audio file. The Windows speaker configuration tool, however, offers you additional flexibility in testing your devices.

In this guide, we'll show you the easy steps to find out the power states supported on your computer. Also, explain each of the states and how they work on Windows 11.

Computer Configuration > Administrative Template > System > Power Management > Sleep Settings. Look for Allow standby states (S1-S3) when sleeping (plugged-in) and Enable it.

Depending on your computer's configuration, SpeedFan can report on your system fan, your CPU fan, your graphics card fan and a number of other fans. It reports fan speeds in revolutions per minute.

If you want to check for Pending Reboot on Windows Server/11/10 computer, you can do so using the PowerShell method described in this post.