DeWalt R510 manual Summary of Power Management Features

Dell

Table 15. Summary of Power Management Features

Feature	Type	Enable/Status/ Ctrl	Description
		bit location
ACPI Mode	Fixed	ICH-10	The OS uses the SCI_EN bit in ICH to switch from legacy mode to
Switch			ACPI mode.
Sleep States	Fixed	ICH-10	Supported states: S0 (Working), S4-OS (Hibernation in Windows
			OS), and S5 (Soft-off).
			S1 (also called standby or suspend) and S3 are not supported.
Power Button	Fixed	ICH-10	In ACPI mode, OS has control of the power button. In non-ACPI
			mode, SMI handler owns power button events.
Real-Time	Fixed	ICH-10	The OS is able to configure the system to wake on the RTC
Clock			alarm.
Power Mgmt.	Fixed	ICH-10	ICH-10 24-bit power management timer is used.
Timer
Power Mgmt.	Generic	ICH-10	Each host bus’ PME# signal is routed to a separate general-
Event (PME)			purpose event pin in the chipset. When a device signals PME#,
			the system wakes (if necessary), the OS detects the event, and
			a Dell defined ASL routine handles the event. Wake-on-LAN is
			one example of a PME.
USB wake	Generic	N/A	This feature is not supported on this system since the S1 state is
			not supported.
OS DBS	N/A	Processor MSRs	This feature does P state transition under Windows
C State Support	Fixed and	Processor MSR and	This feature allows multiple C state support for Processor. This
	Generic	ICH-10 registers	feature works under Windows and any ACPI OS that understand
			C states.
Power Profile	N/A	Processor/MCH and	11G Servers are the most energy-smart servers that Dell ships.
support		ICH-10 chipset	In addition to P, C, and T states, BIOS exposes the Power
		registers.	Profiles to the OS. Each Power Profile has specific settings and
			fine tunes the processor (MCH, IOH and South Bridge).

Current Power Profiles that 11G BIOS exposes in BIOS setup are detailed in the following table. The Active Power Controller mode is the default mode.

PowerEdge R510 Technical Guide 48