Toshiba A20-S259 Maintenance Manual - Page 190

3.26 SETUP 3 Tests and Diagnostics Display Auto Off Use this option to disable or set the duration of the display automatic power off function. This function causes the computer to turn the LCD panel's illumination off if you make no entry for the set period of time. Disabled Disables display automatic power off. xx Min. Automatically turns off power to the LCD panel's illumination if the panel is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20 or 30 minutes. HDD Auto Off Use this option to set the duration of the HDD automatic power off function. xx Min. Automatically turns off power to the hard disk drive if it is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20 or 30 minutes. LCD Brightness Use this option to set the level of LCD brightness. Super-Bright Full brightness for maximum visibility. Bright Full brightness for high visibility. Semi-Bright Less than full brightness for saving power. Cooling Method If the CPU becomes too hot, the fan turns on or the processing speed is lowered automatically. When the CPU temperature falls to a normal range, the fan turns off. Maximum performance Turns on fan first, then if necessary lowers CPU processing speed. Performance Uses a combination of fan and lowering the CPU processing speed. Battery optimized Lowers the CPU processing speed first, then if necessary turns on the fan. Satellite A20 Maintenance Manual (960-444) 3-75