Acer Aspire M5640 Service Guide for Aspire M1640 / M3640 / M5640 - Page 45

The following table describes the parameters found in this menu. Parameter ACPI Function ACPI Suspend Type HDD Power Down HDD Down In Suspend Description This item allows you to enable or disable the ACPI function This item specifies the power saving modes for ACPI function. S1 (POSP: The S1 sleep mode is a low power state.. In this state, no system context (SPU or chipset) is lost and hardware maintains all system context/ S3 (STR): The S3 sleep mode is s power-down state in which power is supplied only to essential components such as main memory and wake-capable devices and all system context is saved to main memory. The information stored in memory will be used to restore the PC to the previous state when an wake-up event occurs. The setting controls how long a hard disk drive must be left idle before it spins downs. Enables or Disables the functionality of HDD down in suspend Options [Enabled], [Disabled] [S1 (POS)]: Set ACPI suspend type to S1/POS (Power On Suspend). [S3 (STR)]: Set ACPI suspend type to S3/STR [Disabled], [Standby], [Suspend] [Enabled], [Disabled] 39