Acer Veriton S480G Service Guide - Page 22

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. 16