protech PC-550, User Manual, Page: 56 / 106

Chapter 4 Green PC Function
Page: 4-2
PC-550 USER
′
S MANUAL
4-1. POWER SAVING BLOCK DIAGRAM
4-2. CPU DOZE MODE
1. After out of the timer, CPU clock is slow down to 8MHz.
2. One beep sound.
3. Flash LED to indicate power saving status.
4. Monitor Activity, according to the setting of Advanced Setup.
5. Any activity occurs, system will exit from Doze mode to On mode.
4-3. SYSTEM STANDBY MODE
1. After out of the timer, CPU clock is slow down to 8MHz.
2. Two beep sound.
3. Flash LED to indicate power saving status.
4. Level 1 cache are disabled.
5. VGA monitor displays blank screen.
6. Fixed disk driver motor will be spin off.
7. Any activity occurs, system will exit from Standby mode to On mode.