![](/images/new-backgrounds/1306548/30654837x1.webp)
Power Management Function(ACPI support function)
Device Standby Mode
•Independent power management timer for hard disk drive
•Hard Disk drive goes into Standby mode(for ATA standard interface).
•Disable
•Resume method:device activated (keyboard for DOS, keyboard &mouse for Windows.
•Resume recovery time
Global Standby Mode
•Global power management
•Hard disk drive goes into Standby mode(for ATA standard interface).
•Disable
•Resume method: Resume to original state by pushing external switch Button,modem ring in,keyboard an mouse for APM mode.
•Resume recovery
Suspend Mode
•Independent power management
•CPU goes into SMM
•CPU asserts STPCLK# and goes into the Stop Grant State.
•LED on panel turns amber colour.
•Hard disk drive goes into SLEEP mode (for ATA standard interface).
•Disable
•Ultra I/O and VGA chip go into power saving mode.
•Resume method: Resume to original state by pushing external switch Button,modem ring in,keyboard an mouse for APM mode
•Return to original state by pushing external switch button,modem ring in and USB keyboard for ACPI mode.
ACPI
•ACPI specification 1.0b
•S0,S1,S2 and S5 sleep state support.
•On board device power management support.
•On board device configuration support.
Chapter 1 | 11 |