P O W E R M A N A G E M E N T F U N C T I O N ( A C P I S U P P O R T F U N C T I O; Device Standby Mode; Global Standby Mode; Suspend Mode - Acer Aspire M3300 Service Manual

Power Management Function(ACPI support function)

Device Standby Mode

Independent power management timer for hard disk drive devices(0-15
minutes,time step=1minute).
Hard Disk drive goes into Standby mode(for ATA standard interface).
Disable V-sync to control the VESA DPMS monitor.
Resume method:device activated (keyboard for DOS, keyboard &mouse
for Windows.
Resume recovery time 3-5sec.

Global Standby Mode

Global power management timer(2-120minutes,time step=10minute).
Hard disk drive goes into Standby mode(for ATA standard interface).
Disable H-sync and V-sync signals to control the VESA DPMS monitor.
Resume method: Resume to original state by pushing external switch
Button,modem ring in,keyboard an mouse for APM mode.
Resume recovery time :7-10sec

Suspend Mode

Independent power management timer(2-120minutes,time step=10minute)or
pushing extern switch button.
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 H-sync and V-sync signals to control the VESA DPMS monitor.
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
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