521 datasheet(13/96 Pages) INTEL

13 / 96 page

Datasheet

Introduction

• Retention mechanism (RM)—Since the LGA775 socket does not include any mechanical

features for heatsink attach, a retention mechanism is required. Component thermal solutions

should attach to the processor via a retention mechanism that is independent of the socket.

• Storage conditions—Refers to a non-operational state. The processor may be installed in a

platform, in a tray, or loose. Processors may be sealed in packaging or exposed to free air.

Under these conditions, processor lands should not be connected to any supply voltages, have

any I/Os biased, or receive any clocks. Upon exposure to “free air” (i.e., unsealed packaging or

a device removed from packaging material) the processor must be handled in accordance with

moisture sensitivity labeling (MSL) as indicated on the packaging material.

• Functional operation—Refers to normal operating conditions in which all processor

specifications, including DC, AC, system bus, signal quality, mechanical and thermal, are

satisfied.

1.2

References

Material and concepts available in the following documents may be beneficial when reading this

document.

Table 1-1. References

Document

Document Numbers/

Location

Intel® Pentium® 4 Processor on 90 nm Process Specification Update

http://developer.intel.com/

design/Pentium4/

specupdt/302352.htm

Intel® Pentium® 4 Processor on 90 nm Process in the 775-Land Package

Thermal Design Guidelines

http://developer.intel.com/

design/Pentium4/guides/

302553.htm

Voltage Regulator Down (VRD) 10.1 Design Guide For Desktop LGA775 Socket

http://developer.intel.com/

design/Pentium4/guides/

302356.htm

Intel® Architecture Software Developer's Manual

http://developer.intel.com/

design/pentium4/

manuals/index_new.htm

IA-32 Intel® Architecture Software Developer's Manual Volume 1: Basic

Architecture

IA-32 Intel® Architecture Software Developer's Manual Volume 2A: Instruction

Set Reference Manual A–M

IA-32 Intel® Architecture Software Developer's Manual Volume 2B: Instruction

Set Reference Manual, N–Z

IA-32 Intel® Architecture Software Developer's Manual Volume 3: System

Programming Guide

IA-32 Intel® Architecture and Intel® Extended Memory 64 Software

Developer's Manual Documentation Changes

http://developer.intel.com/

design/pentium4/

manuals/index_new.htm

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