Intel E5420 - CPU XEON QUAD CORE 2.50GHZ FSB1333MHZ 12M LGA771 HALOGEN FREE... User manual

Document Number: 318585-019
Intel® Xeon® Processor 5400 Series
Specification Update
December 2010

2Intel® Xeon® Processor 5400 Series
SpecificationUpdate
Legal Lines and Disclaimers
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in nuclear facility applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
Hyper-Threading Technology requires a computer system with a processor supporting HT Technology and an HT Technology-enabled chipset, BIOS
and operating system. Performance will vary depending on the specific hardware and software you use. For more information including details on
which processors support HT Technology, see here
Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across
different processor families. See http://www.intel.com/products/processor_number for details.
The Intel® Xeon® Processor 5400 Series may contain design defects or errors known as errata which may cause the product to deviate from
published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
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*Other names and brands may be claimed as the property of others.
Copyright © 2007-2010, Intel Corporation. All Rights Reserved.

3Intel® Xeon® Processor 5400 Series
SpecificationUpdate
Content
Revision History...............................................................................................................5
Preface..............................................................................................................................6
Summary Tables of Changes..........................................................................................8
Identification Information..............................................................................................15
Errata...............................................................................................................................18
Specification Changes...................................................................................................41
Specification Clarifications...........................................................................................42
Documentation Changes...............................................................................................43
§

Intel® Xeon® Processor 5400 Series 4
Specification Update

5Intel® Xeon® Processor 5400 Series
SpecificationUpdate
Revision History
Revision Description Date
-001 Initial Release - HTN_Public November 2007
-002 Added Errata AX43 through AX50
Updated Erratum AX26 December 2007
-003 Updated Erratum AX18
Added Erratum AX51 January 2008
-004 Added Erratum AX52 January 2008
-005 Added Erratum AX53 and AX54 February 2008
-006 Updated Table 1 to support L5408 March 2008
-007 Added L5410 and L5420 to Table 1
Added Specification Clairification on TLB April 2008
-008 Added Erratum AX55-AX57 May 2008
-009 Added Erratum AX58 June 2008
-010
Added Erratum AX59-AX64
Updated Table 1 for E-step Processor samples
Updated C & E step microcode
Updated notes in Table 1. Added Tcontrol Enabling Range and
removed actual Tcontrol values
July 2008
-011 Added Erratum AX65 and AX66 August 2008
-012 Added Erratum AX67-AX70
Added Production E-step S-spec numbers to Table 1 October 2008
-013 Added Erratum AX71
Added Production E-step S-spec numbers to Table 1 November 2008
-014 Updated Erratum AX68
Added Erratum AX72 December 2008
-015 Updated Erratum AX1 February 2009
-016 No changes....released to keep in sync with other related
documents. May 2009
-017 Added Erratum AX73 June 2009
-018 No changes....released to keep in sync with other related
documents. December 2010
-019 Added Erratum AX74-AX76 December 2010

Intel® Xeon® Processor 5400 Series 6
Specification Update
Preface
This document is an update to the specifications contained in the Affected Documents
table below. This document is a compilation of device and documentation errata,
specification clarifications and changes. It is intended for hardware system
manufacturers and software developers of applications, operating systems, or tools.
Information types defined in Nomenclature are consolidated into the specification
update and are no longer published in other documents.
This document may also contain information that was not previously published.
Affected Documents
Related Documents
Document Title Document Number/
Location
Intel® Xeon® Processor 5400 Series Datasheet 318589
Document Title Document Number/
Location
AP-485, Intel® Processor Identification and the CPUID Instruction http://www.intel.com/
design/processor/
applnots/241618.htm
Intel® 64 and IA-32 Architectures Software Developer’s Manual,
Volume 1: Basic Architecture
Intel® 64 and IA-32 Architectures Software Developer’s Manual,
Volume 2A: Instruction Set Reference Manual A-M
Intel® 64 and IA-32 Architectures Software Developer’s Manual,
Volume 2B: Instruction Set Reference Manual N-Z
Intel® 64 and IA-32 Architectures Software Developer’s Manual,
Volume 3A: System Programming Guide
Intel® 64 and IA-32 Architectures Software Developer’s Manual,
Volume 3B: System Programming Guide
Intel® 64 and IA-32 Intel Architecture Optimization Reference
Manual
http://www.intel.com/
products/processor/
manuals/index.htm
Intel® 64 and IA-32 Architectures Software Developer’s Manual
Documentation Changes http://www.intel.com/
design/processor/
specupdt/252046.htm

7Intel® Xeon® Processor 5400 Series
SpecificationUpdate
Nomenclature
Errata are design defects or errors. These may cause the Intel® Xeon® Processor
5400 Series behavior to deviate from published specifications. Hardware and software
designed to be used with any given stepping must assume that all errata documented
for that stepping are present on all devices.
S-Spec Number is a five-digit code used to identify products. Products are
differentiated by their unique characteristics,e.g., core speed, L2 cache size, package
type, etc. as described in the processor identification information table. Read all notes
associated with each S-Spec number.
Specification Changes are modifications to the current published specifications.
These changes will be incorporated in any new release of the specification.
Specification Clarifications describe a specification in greater detail or further
highlight a specification’s impact to a complex design situation. These clarifications will
be incorporated in any new release of the specification.
Documentation Changes include typos, errors, or omissions from the current
published specifications. These will be incorporated in any new release of the
specification.
Note: Errata remain in the specification update throughout the product’s lifecycle, or until a
particular stepping is no longer commercially available. Under these circumstances,
errata removed from the specification update are archived and available upon request.
Specification changes, specification clarifications and documentation changes are
removed from the specification update when the appropriate changes are made to the
appropriate product specification or user documentation (datasheets, manuals, and so
forth).

Intel® Xeon® Processor 5400 Series 8
Specification Update
Summary Tables of Changes
The following tables indicate the errata, specification changes, specification
clarifications, or documentation changes which apply to the Intel® Xeon® Processor
5400 Series product. Intel may fix some of the errata in a future stepping of the
component, and account for the other outstanding issues through documentation or
specification changes as noted. These tables uses the following notations:
Codes Used in Summary Tables
Stepping
X: Errata exists in the stepping indicated. Specification Change or
Clarification that applies to this stepping.
(No mark)
or (Blank box): This erratum is fixed in listed stepping or specification change
does not apply to listed stepping.
Page
(Page): Page location of item in this document.
Status
Doc: Document change or update will be implemented.
Plan Fix: This erratum may be fixed in a future stepping of the product.
Fixed: This erratum has been previously fixed.
No Fix: There are no plans to fix this erratum.
Row
Change bar to left of table row indicates this erratum is either new or modified from the
previous version of the document.
Each Specification Update item is prefixed with a capital letter to distinguish the
product. The key below details the letters that are used in Intel’s microprocessor
Specification Updates:
A = Intel® Xeon® processor 7000 sequence
C = Intel® Celeron® processor
D = Intel® Xeon® processor 2.80 GHz
E = Intel® Pentium® III processor
F = Intel® Pentium® processor Extreme Edition and Intel® Pentium® D processor
I = Intel® Xeon® processor 5000 series
J = 64-bit Intel® Xeon® processor MP with 1MB L2 cache
K = Mobile Intel® Pentium® III processor

9Intel® Xeon® Processor 5400 Series
SpecificationUpdate
L = Intel® Celeron® D processor
M = Mobile Intel® Celeron® processor
N = Intel® Pentium® 4 processor
O = Intel® Xeon® processor MP
P = Intel ® Xeon® processor
Q = Mobile Intel® Pentium® 4 processor supporting Intel® Hyper-Threading Technology
(Intel® HT Technology) on 90-nm process technology
R = Intel® Pentium® 4 processor on 90 nm process
S = 64-bit Intel® Xeon® processor with 800 MHz system bus (1 MB and 2 MB L2 cache
versions)
T = Mobile Intel® Pentium® 4 processor-M
U = 64-bit Intel® Xeon® processor MP with up to 8 MB L3 cache
V = Mobile Intel® Celeron® processor on.13 micron process in Micro-FCPGA package
W= Intel® Celeron® M processor
X = Intel® Pentium® M processor on 90 nm process with 2-MB L2 cache and Intel®
processor A100 and A110 with 512-KB L2 cache
Y = Intel® Pentium® M processor
Z = Mobile Intel® Pentium® 4 processor with 533 MHz system bus
AA = Intel® Pentium® D processor 900 sequence and Intel® Pentium® processor Extreme
Edition 955, 965
AB = Intel® Pentium® 4 processor 6x1 sequence
AC = Intel® Celeron® processor in 478 pin package
AD = Intel® Celeron® D processor on 65nm_process
AE = Intel® Core™ Duo processor and Intel® Core™ Solo processor on 65 nm process
AF = Intel® Xeon® processor LV
AG = Intel® Xeon® processor 5100 series
AH = Intel® Core™2 Duo/Solo Processor for Intel® Centrino® Duo Processor Technology
AI = Intel® Core™2 Extreme processor X6800 and Intel® Core™2 Duo desktop processor
E6000 and E4000 sequence
AJ = Intel® Xeon® processor 5300 series
AK = Intel® Core™2 Extreme processor QX6000 sequence and Intel® Core™2 processor
Q6000 sequence
AL = Intel® Xeon® processor 7100 series
AM = Intel® Celeron® processor 400 sequence
AN = Intel® Pentium® processor
AO = Intel® Xeon® processor 3200 series
AP = Intel® Xeon® processor 3000 series
AQ = Intel® Pentium® desktop processor E2000 sequence
AR = Intel® Celeron processor 500 series
AS = Intel® Xeon® processor 7200, 7300 series

Intel® Xeon® Processor 5400 Series 10
Specification Update
AT = Intel® Celeron® processor 200 series
AV = Intel® Core™2 Extreme Processor QX9650 Sequence and Intel® Core™2 Processor
Q9000 Sequence processor
AW = Intel® Core™ 2 Duo processor E8000 series
AX = Intel® Xeon® Processor 5400 Series
AY = Intel® Xeon® Processor 5200 Series
AZ= Intel® Core™2 Duo Processor and Intel® Core™2 Extreme Processor on 45-nm
Process
AAA= Intel® Xeon® processor 3300 series
AAB= Intel® Xeon® E3110 Processor
AAC= Intel® Celeron® processor E1000 series
AAD= Intel® Core™ 2 extreme Processor OX9775
AAE= Intel® Atom™ Processor Z5xx series
AAF= Intel® Atom™ Processor 200 series
AAG= Intel® Atom™ Processor N series
AAH= Intel® Atom™ Processor 300 series
AAI= Intel® Xeon® Processor 7400 Series