Datasheet
Intel
®
Xeon
®
Processor C5500/C3500 Series
February 2010 Datasheet, Volume 1
Order Number: 323103-001 349
Power Management
8.0 Power Management
8.1 Introduction
Intel
®
Xeon
®
processor C5500/C3500 series power management is compatible with
the PCI Bus Power Management Interface Specification, Revision 1.1 (referenced as
PCI-PM). It is also compatible with the Advanced Configuration and Power Interface
(ACPI) Specification, Revision 2.0b.
This chapter provides information on the following power management topics:
8.1.1 ACPI States Supported
Figure 67 shows a high-level diagram of the basic ACPI system and processor states in
working state (G0) and sleeping states (G1 & G2). The frequency and voltage might
vary by implementation.
• ACPI states • PCI Express*
• Processor core • DMI
•IMC •Intel
®
QPI
• Device and slot power • Intel
®
QuickData Technology