Power Management Function (Acpi Support Function) - Acer Aspire SA60 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=1 minute).
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: 3-5 sec.
Global Standby Mode
Global power management timer (2-120 minutes, time step=10 minute).
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: Return to original state by pushing external switch button, modem ring in,
keyboard and mouse for APM mode.
Resume recovery time: 7-10 sec.
Suspend Mode
Independent power management timer (2-120 minutes, time step=10 minutes) or pushing external
switch button.
CPU goes into SMM.
CPU asserts STPCLK# and goes into the Stop Grant State.
LED on the 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: Return to original state by pushing external switch button, modem ring in,
keyboard and 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, S3 and S5 sleep state support.
On board device power management support.
On board device configuration support.
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