Toshiba Portege R500 Maintenance Manual - Page 205

3.31 BIOS SETUP 3 Tests and Diagnostics Processing Speed This feature changes the CPU processing speed. High Low CPU operates at high speed. (Default in Full Power Mode) CPU operates at low speed. (Default in Low Power Mode) CPU Sleep Mode Use this option to enable or disable the CPU sleep function. Enabled Disabled Enables sleep mode. (Default) Disables sleep mode. LCD Brightness Use this option to set the level of LCD brightness. Super-Bright Bright Semi-Bright Full brightness for maximum visibility. Full brightness for high visibility. Less than full brightness for saving power. Cooling Method Maximum Performance Performance Battery optimized If the CPU becomes too hot, the fan turns on automatically in a high speed to cool down the CPU. If the CPU becomes too hot, the fan turns on automatically. When the CPU temperature falls to a normal range, the fan turns off. If the CPU becomes too hot, the processing speed is lowered. If the temperature is still too high, the fan turns on. When the CPU temperature falls to a normal range, the fan is turned off and the processing speed is increased. NOTE: Too hot condition may cause defect on the CPU. When the hot condition continues, the power is automatically turned off in resume mode. PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL] 3-93