Intel 315889-002 manual 1Applications, 1.1Introduction and Terminology

Applications

1Applications

1.1Introduction and Terminology

This document defines the DC-to-DC converters to meet the processor power requirements of the following platforms:

Table 1-1. VRM/EVRD 11.0 Supported Platforms and Processors

Dual-Core Intel® Xeon® 5000 Sequence Platform with Intel® 5000P Express Chipset, Intel® 5000V Chipset, Intel® 5000X Chipset, Intel® 5100 Chipset, Intel® 5400A Chipset, or Intel® 5400B Chipset

Dual-Core Intel® Xeon® Processor	Dual-Core Intel® Xeon® Processor	Quad-Core Intel® Xeon®
5000 Series	5100 Series	processor 5300 Series
Dual-Core Intel® Xeon® Processor	Quad-Core Intel® Xeon® Processor
5200 Series	5400 Series

Dual-Core Intel® Xeon® Processor 7000 Sequence-Based Platform with Intel® 7300 Chipset

Dual-Core Intel® Xeon® Processor 7200 Series

Quad-Core Intel® Xeon® processor 7300 Series

The requirements in this document will focus primarily on the Enterprise processors based on Dual-Core Intel® Xeon® Processor-based Server and Quad-Core Intel® Xeon® Processor-based Server/Workstation platforms. Some requirements will vary according to the needs of different computer systems and processors. The intent of this document is to define the electrical, thermal and mechanical design specifications for VRM/EVRD 11.0.

VRM – The voltage regulator module (VRM) designation in this document refers to a voltage regulator that is plugged into a baseboard via a connector or soldered in with signal and power leads, where the baseboard is designed to support more than one processor. VRM output requirements in this document are intended to match the needs of a set of microprocessors.

EVRD – The enterprise voltage regulator down (EVRD) designation in this document refers to a voltage regulator that is permanently embedded on a baseboard. The EVRD output requirements in this document are intended to match the needs of a set of microprocessors. EVRD designs are only required to meet the specifications of a specific baseboard and thus must meet the specifications of all the processors supported by that baseboard.

‘1’ – In this document, refers to a high voltage level (VOH and VIH). ‘0’ – In this document, refers to a low voltage level (VOL and VIL).

‘X’ – In this document, refers to a high or low voltage level (Don’t Care).

‘#’ – Symbol after a signal name in this document, refers to an active low signal, indicating that a signal is in the asserted state when driven to a low level.

The specifications in the respective processors’ Electrical, Mechanical, and Thermal Specifications (EMTS) documents always take precedence over the data provided in this document.

VRM/EVRD 11.0 incorporates functional changes from prior VRM and EVRD design guidelines:

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