Specification Sheet

ManualsBrandsIntel ManualsCPU ProcessorsIntel Xeon E5-2609 v2 Quad-Core Processor 2.5GHz 6.4GT/s 10MB LGA 2011 CPU BX80635E52609V2

Interfaces

32 Intel

Xeon

Processor E5-1600/E5-2600/E5-4600 v2 Product Families

Datasheet Volume One of Two

Generic PECI specification details are out of the scope of this document. What follows is

a processor-specific PECI client definition, and is largely an addendum to the PECI

Network Layer and Design Recommendations sections for the PECI specification.

Note: The PECI commands described in this document apply primarily to the Intel® Xeon®

processor E5-1600 v2/E5-2600 v2/E5-4600 v2 product families. The processors utilizes

the capabilities described in this document to indicate support for four memory

channels. Refer to Tab l e 2-1 for the list of PECI commands supported by the

processors.

2.5.1 PECI Client Capabilities

The processor PECI client is designed to support the following sideband functions:

• Processor and DRAM thermal management

• Platform manageability functions including thermal, power, and error monitoring

— The platform ‘power’ management includes monitoring and control for both the

proce

ssor and DRAM subsystem to assist with data center power limiting.

2.5.1.1 Thermal Management

Processor fan speed control is managed by comparing Digital Thermal Sensor (DTS)

thermal readings acquired via PECI against the processor-specific fan speed control

reference point, or T

CONTROL

. Both T

CONTROL

and DTS thermal readings are accessible

via the processor PECI client. These variables are referenced to a common

temperature, the TCC activation point, and are both defined as negative offsets from

that reference.

PECI-based access to the processor package configuration space provides a means for

Baseboard Management Controllers (BMCs) or other platform management devices to

actively manage the processor and memory power and thermal features. Details on the

list of available power and thermal optimization services can be found in

Section 2.5.2.6.

Table 2-1. Summary of Processor-specific PECI Commands

Command Supported on the Processor

Ping() Yes

GetDIB() Yes

GetTemp() Yes

RdPkgConfig() Yes

WrPkgConfig() Yes

RdIAMSR() Yes

WrIAMSR() No

RdPCIConfig() Yes

WrPCIConfig() No

RdPCIConfigLocal() Yes

WrPCIConfigLocal() Yes