Panasonic Toughbook CF-31AAAAA2M Reference Manual

Also see for CF-31 Series: Supplementary instructions Operating instructions Operating instructions Operating instructions Reference manual

3Introductionz Depending on the processing status on Windows, sound may be interrupted at Windows startup. You can mute the sound at startup.A Right-click the desktop and click [Personalize] - [Sounds].B Remove the check mark from [Play Windows Startup sound], and click [OK]. When high-frequency sound occursIf high-frequency sound occurs around keyboard while using the computer, check the settings for the USB power saving function.A standard user needs to enter an administrator password and click [OK].z Set [USB selective suspend setting] to [Enabled].A Click (Start) - [Control Panel] - [System and Security] - [Power Options].B Click [Change plan settings] of the current power plan.C In [Change settings for the plan], click [Change advanced power settings].D In [Advanced settings], double-click [USB settings].E Double-click the displayed [USB selective suspend setting].F Change settings of [On battery] and [Plugged in] to [Enabled].G Click [OK] and exit the [Advanced settings] screen. Switching the GPU that is usedWhen you start up the computer for the first time after purchase, the Intel ® GPU is activated to save power.You can manually change the GPU that is used.1 Set [Switchable Graphics] to [Switchable].A Turn on or restart the computer.B Press F2 or Del while [Panasonic] boot screen is displayed soon after the computer starts the startupprocedure.C Select the [Main] menu and set [Switchable Graphics] to [Switchable].D Press F10, select [Yes], and press Enter to exit the Setup Utility.Computer will start.2 Log on to Windows.3 Click on the notification area, and click .4 Select [Switchable Graphics].5 To switch to the Intel® GPU, select [Power Saving Video] in [Switchable Graphics].To switch to the discrete GPU, select [Performance Video] in [Switchable Graphics].