Acer Aspire M5100 Aspire M1100/3100/5100 Power M3100 Service Guide - Page 33

Power Management Function (ACPI Support Function) Device Standby Mode • Independent power management timer for hard disk drive devices (zero to 15 minutes, time step = one 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: three to five seconds. Global Standby Mode • Global power management timer (two to 120 minutes, time step = 10 minutes). • 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: seven to 10 seconds. Suspend Mode • Independent power management timer (two to 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 color. • 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 • Onboard device power management support • Onboard device configuration support Chapter 1 23