Toshiba Portege R500 Maintenance Manual - Page 203

3.31 BIOS SETUP 3 Tests and Diagnostics NOTE: 1. Do not remove the AC adaptor and battery pack at the same time when you use this feature. If you do so, data saved by the resume function will be lost. You must also reset this option. 2. If you have set a password and the computer boots by the Auto Power On function and Standby is on, the computer will start with the instant security function enabled. The password = message is not displayed; however, you must enter the password to use the computer. 3. This option is enabled only once, the setting is reset, after booting up. (b) Performance/Battery Life Setting Battery operating time and computer processing power can be controlled by changing the memory bus frequency. Battery Life Setting the memory bus frequency to 400MHz will give priority to battery operating time over computer processing power. Performance Setting the memory bus frequency to 533MHz will give priority to computer processing power over battery operating time (Default). (c) Beep Volume This Option sets up the volume of a Beep sound. Medium→High→OFF→Low (d) Diagnostic Mode This option enables/disables the HW Diagnostic test function. Enabled Disables the HW Diagnostic test function. (Default) Disabled Enables the HW Diagnostic test function. (e) USB Sleep and charge This Option sets up whether a power supply is supplied to a USB device, when PC is in a Sleep mode state. Disabled Enabled（Mode1） Enabled（Mode2） 7. Configuration A power supply is not supplied in a Sleep mode state. (Default) A power supply is supplied in a Sleep mode state. A power supply is supplied in a Sleep mode state. PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL] 3-91