Intel S7000FC4UR Technical Product Specification

Main Board Server Management Intel® Server System S7000FC4UR TPS
Revision 1.0
Intel order number E18291-001
42
3.3.3.1.1 PECI Enabled Processor Presence Detection
The system must detect the presence of PECI enabled processors. BIOS or other system
management / initialization software can determine if a particular processor supports a PECI
interface by utilizing the processor’s CPUID instruction to return the processor signature.
3.3.3.1.2 Number of PECI Domains Per Physical Package Determination:
The system must determine the number of PECI domains per physical package. Once software
has established the presence of a PECI enabled processor, it must determine the number of
PECI domains supported per physical package.
The number of PECI domains provides information to manageability hardware/software
regarding how many temperature requests should be made to determine the temperature for the
physical package.
3.3.3.1.3 PECI Fault Handling
The system must determine PECI Fault handling. System RESET#, both during system power-
up and during a previously powered re-boot, produces a window of time during which PECI
transactions cannot be guaranteed to complete or for data to be valid. Additionally, the PECI
addressing in the processor may not resolve until after RESET# deassertion, which is critical for
multiple processor-based systems to operate correctly.
3.3.4 Processor Throttling
Processor throttling is the ability of the processor to reduce core speed, and thereby its heat,
when generated heat exceeds normal thermal thresholds. There are several ways a processor
can be throttled:
3.3.4.1 Processor Method
If a processor reaches a certain temperature, it will assert PROCHOT_N. At the same time the
processor will internally assert its own FORCEPR_N (Force Power Reduction) internally,
thereby throttling the processor to reduce the temperature.
3.3.4.2 Processor Voltage Regulator (VR) Method
If a processor VR reaches a certain temperature, it will assert VRHOT_N to the LM94. This will
cause the LM94 to assert its PROCHOT_N output to the GTL2007, which will then drive the
FORCEPR_N input on that processor thereby throttling the processor to reduce the
temperature.
3.3.4.3 BMC Method
If a preset power consumption threshold of the system is crossed, it will be detected by the
BMC. The BMC can assert PROCHOT_N to the GTL2007 from the LM94 through use of the
SMBus. This will cause the GTL2007 to assert FORCEPR_N on a processor thereby throttling
the processor to reduce the temperature.

Intel S7000FC4UR Specifications

General

Brand	Intel
Model	S7000FC4UR
Category	Server
Language	English