Acer Veriton S480G, Service Manual

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16
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.