Power Management Function(Acpi Support Function) - Acer ASPIRE M3910(G) Service Manual

Acer laptop user manual
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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.
10
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