Order Number: 320335, Revision: -003Intel® Xeon® Processor 7400 Series DatasheetOctober 2008
Introduction10 Intel® Xeon® Processor 7400 Series DatasheetIntel® Xeon® Processor 7400 Series are intended for high performance multi-processor server
Thermal Specifications100 Intel® Xeon® Processor 7400 Series DatasheetIA32_CLOCK_MODULATION MSR. In On-Demand mode, the duty cycle can be programmed f
Intel® Xeon® Processor 7400 Series Datasheet 101Thermal Specificationsof processor activity and does not generate any bus cycles. If THERMTRIP# is ass
Thermal Specifications102 Intel® Xeon® Processor 7400 Series Datasheet6.3.1.1 TCONTROL and Tcc Activation on PECI-Based SystemsFan speed control solut
Intel® Xeon® Processor 7400 Series Datasheet 103Thermal Specifications6.3.2 PECI Specifications6.3.2.1 PECI Device AddressThe Intel® Xeon® Processor 7
Thermal Specifications104 Intel® Xeon® Processor 7400 Series Datasheetactions to protect the corresponding device and/or other system components from
Intel® Xeon® Processor 7400 Series Datasheet 105Features7 Features7.1 Power-On Configuration OptionsSeveral configuration options can be configured by
Features106 Intel® Xeon® Processor 7400 Series Datasheet7.2.1 Normal StateThis is the normal operating state for the processor.7.2.2 HALT or Extended
Intel® Xeon® Processor 7400 Series Datasheet 107FeaturesENotes:1. The specification is at TCASE = 50°C and nominal VCC. The VID setting represents the
Features108 Intel® Xeon® Processor 7400 Series Datasheet7.2.3 Stop-Grant StateWhen the STPCLK# pin is asserted, the Stop-Grant state of the processor
Intel® Xeon® Processor 7400 Series Datasheet 109FeaturesWhile in the Stop-Grant state, SMI#, INIT#, BINIT# and LINT[1:0] will be latched by the proces
Intel® Xeon® Processor 7400 Series Datasheet 11Introduction1.1 TerminologyA ‘#’ symbol after a signal name refers to an active low signal, indicating
Features110 Intel® Xeon® Processor 7400 Series DatasheetEnhanced Intel SpeedStep Technology creates processor performance states (P-states) or voltage
Intel® Xeon® Processor 7400 Series Datasheet 111FeaturesNote: Actual implementation may vary. This figure is provided to offer a general understanding
Features112 Intel® Xeon® Processor 7400 Series DatasheetNote:1. This addressing scheme will support up to 8 processors on a single SMBus.7.4.2 PIROM a
Intel® Xeon® Processor 7400 Series Datasheet 113Features7.4.3 Processor Information ROM (PIROM)The lower half (128 bytes) of the SMBus memory componen
Features114 Intel® Xeon® Processor 7400 Series Datasheet2 Reserved Reserved for future use2 Processor Core Type From CPUID4 Processor Core Family From
Intel® Xeon® Processor 7400 Series Datasheet 115FeaturesDetails on each of these sections are described below. Note: Reserved fields or bits SHOULD be
Features116 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.1.1 DFR: Data Format RevisionThis location identifies the data format revision of the PI
Intel® Xeon® Processor 7400 Series Datasheet 117Features7.4.3.1.4 PCDA: Processor Core Data AddressThis location provides the offset to the Processor
Features118 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.1.7 PNDA: Part Number Data AddressThis location provides the offset to the Part Number D
Intel® Xeon® Processor 7400 Series Datasheet 119Features7.4.3.1.10 ODA: Other Data AddressThis location provides the offset to the Other Data Section.
Introduction12 Intel® Xeon® Processor 7400 Series Datasheet• Symmetric Agent – A symmetric agent is a processor which shares the same I/O subsystem an
Features120 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.2.2 SAMPROD: Sample/ProductionThis location contains the sample/production field, which
Intel® Xeon® Processor 7400 Series Datasheet 121Features7.4.3.2.3 PDCKS: Processor Data ChecksumThis location provides the checksum of the Processor D
Features122 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.3.2 FSB: Front Side Bus SpeedThis location contains the front side bus transaction rate
Intel® Xeon® Processor 7400 Series Datasheet 123Features7.4.3.3.5 MAXVID: Maximum Core VIDThis location contains the maximum Core VID (Voltage Identif
Features124 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.3.8 PCDCKS: Processor Core Data ChecksumThis location provides the checksum of the Proce
Intel® Xeon® Processor 7400 Series Datasheet 125Features7.4.3.4.3 L3SIZE: L3 Cache SizeThis location contains the size of the level three cache in kil
Features126 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.4.6 RES4: Reserved 4These locations are reserved. Writes to this register have no effect
Intel® Xeon® Processor 7400 Series Datasheet 127Features7.4.3.5.2 RES5: Reserved 5This location is reserved. Writes to this register have no effect.7.
Features128 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.6.2 RES6: Reserved 6This location is reserved. Writes to this register have no effect.7.
Intel® Xeon® Processor 7400 Series Datasheet 129Features7.4.3.6.5 PNDCKS: Part Number Data ChecksumThis location provides the checksum of the Part Num
Intel® Xeon® Processor 7400 Series Datasheet 13IntroductionNote: I2C is a two-wire communications bus/protocol developed by Phillips. SMBus is a subse
Features130 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.8 Feature Data This section provides information on key features that the platform may n
Intel® Xeon® Processor 7400 Series Datasheet 131Features7.4.3.8.4 AFF: Additional Processor Feature FlagsThis location contains additional feature inf
Features132 Intel® Xeon® Processor 7400 Series Datasheet7.4.3.9.1 FDCKS: Feature Data ChecksumThis location provides the checksum of the Feature Data
Intel® Xeon® Processor 7400 Series Datasheet 133Debug Tools Specifications8 Debug Tools SpecificationsPlease refer to the appropriate platform design
Debug Tools Specifications134 Intel® Xeon® Processor 7400 Series Datasheetdifferent requirements from the space normally occupied by the heatsink. If
Intel® Xeon® Processor 7400 Series Datasheet 135Boxed Processor Specifications9 Boxed Processor Specifications9.1 IntroductionThe Intel® Xeon® Process
Boxed Processor Specifications136 Intel® Xeon® Processor 7400 Series Datasheet
Introduction14 Intel® Xeon® Processor 7400 Series Datasheet
Intel® Xeon® Processor 7400 Series Datasheet 15Electrical Specifications2 Electrical Specifications2.1 Front Side Bus and GTLREFMost Intel® Xeon® Proc
Electrical Specifications16 Intel® Xeon® Processor 7400 Series Datasheet2.2 Decoupling GuidelinesDue to its large number of transistors and high inter
Intel® Xeon® Processor 7400 Series Datasheet 17Electrical SpecificationsThe processor core frequency is configured during reset by using values stored
Electrical Specifications18 Intel® Xeon® Processor 7400 Series Datasheet2.3.2 PLL Power SupplyAn on-die PLL filter solution is implemented on the proc
Intel® Xeon® Processor 7400 Series Datasheet 19Electrical SpecificationsNotes:1. When this VID pattern is observed, the voltage regulator output shoul
2 Intel® Xeon® Processor 7400 Series DatasheetINFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPL
Electrical Specifications20 Intel® Xeon® Processor 7400 Series Datasheet2.5 Reserved, Unused, or Test SignalsAll Reserved signals must remain unconnec
Intel® Xeon® Processor 7400 Series Datasheet 21Electrical SpecificationsNotes:1. Refer to Section 4 for signal descriptions.2. These signals may be dr
Electrical Specifications22 Intel® Xeon® Processor 7400 Series DatasheetTable 2-6 outlines AGTL+ signals which include on-die termination (RTT) and th
Intel® Xeon® Processor 7400 Series Datasheet 23Electrical Specifications2.9 Mixing ProcessorsIntel supports and validates multi-processor configuratio
Electrical Specifications24 Intel® Xeon® Processor 7400 Series Datasheet2.11 Processor DC SpecificationsThe following notes apply:• The processor DC s
Intel® Xeon® Processor 7400 Series Datasheet 25Electrical SpecificationsICCICC for an 6-Core Intel® Xeon® Processor L7400 SeriesLaunch - FMB85 A 3, 4,
Electrical Specifications26 Intel® Xeon® Processor 7400 Series DatasheetICCICC for an 6-Core Intel® Xeon® Processor L7400 SeriesLaunch - FMB85 A 3, 4,
Intel® Xeon® Processor 7400 Series Datasheet 27Electrical SpecificationsNotes:1. Unless otherwise noted, all specifications in this table apply to all
Electrical Specifications28 Intel® Xeon® Processor 7400 Series DatasheetNotes:1. Processor or Voltage Regulator thermal protection circuitry should no
Intel® Xeon® Processor 7400 Series Datasheet 29Electrical SpecificationsNotes:1. Processor or Voltage Regulator thermal protection circuitry should no
Intel® Xeon® Processor 7400 Series Datasheet 3Contents1Introduction...
Electrical Specifications30 Intel® Xeon® Processor 7400 Series DatasheetTable 2-10. VCC Static and Transient ToleranceICC (A) VCC_Max (V) VCC_Typ (V)
Intel® Xeon® Processor 7400 Series Datasheet 31Electrical SpecificationsNotes:1. The VCC_MIN and VCC_MAX loadlines represent static and transient limi
Electrical Specifications32 Intel® Xeon® Processor 7400 Series DatasheetNotes:1. Unless otherwise noted, all specifications in this table apply to all
Intel® Xeon® Processor 7400 Series Datasheet 33Electrical Specifications2.11.2 VCC Overshoot SpecificationProcessors can tolerate short transient over
Electrical Specifications34 Intel® Xeon® Processor 7400 Series Datasheet2.11.4 Platform Environmental Control Interface (PECI) DC SpecificationsPECI i
Intel® Xeon® Processor 7400 Series Datasheet 35Electrical Specifications2.11.4.2 Input Device HysteresisThe input buffers in both client and host mode
Electrical Specifications36 Intel® Xeon® Processor 7400 Series DatasheetNotes:1. Unless otherwise noted, all specifications in this table apply to all
Intel® Xeon® Processor 7400 Series Datasheet 37Electrical Specifications2.13 Front Side Bus AC SpecificationsThe processor FSB timings specified in th
Electrical Specifications38 Intel® Xeon® Processor 7400 Series Datasheet4. Valid delay timings for these signals are specified into the test circuit d
Intel® Xeon® Processor 7400 Series Datasheet 39Electrical Specifications13. This specification applies only to DSTBN[3:0]# and is measured to the seco
4 Intel® Xeon® Processor 7400 Series Datasheet6.2 Processor Thermal Features ...
Electrical Specifications40 Intel® Xeon® Processor 7400 Series DatasheetNotes: 1. Unless otherwise noted, all specifications in this table apply to a
Intel® Xeon® Processor 7400 Series Datasheet 41Electrical Specifications2.14 Processor AC Timing WaveformsThe following figures are used in conjunctio
Electrical Specifications42 Intel® Xeon® Processor 7400 Series DatasheetFigure 2-8. TCK Clock WaveformFigure 2-9. Differential Clock WaveformFigure 2-
Intel® Xeon® Processor 7400 Series Datasheet 43Electrical SpecificationsNotes:1. Waveform at pin is non-monotonic. Waveform at pad is monotonic.2. Dif
Electrical Specifications44 Intel® Xeon® Processor 7400 Series DatasheetFigure 2-13. FSB Source Synchronous 2X (Address) Timing WaveformTp/4 Tp/2 3Tp/
Intel® Xeon® Processor 7400 Series Datasheet 45Electrical SpecificationsFigure 2-14. FSB Source Synchronous 4X (Data) Timing WaveformBCLK0BCLK1Tp/4Tp/
Electrical Specifications46 Intel® Xeon® Processor 7400 Series DatasheetNote: Please refer to Table 2-12 for TAP Signal Group DC specifications and Ta
Intel® Xeon® Processor 7400 Series Datasheet 47Electrical SpecificationsFigure 2-18. SMBus Timing WaveformFigure 2-19. SMBus Valid Delay Timing Wavefo
Electrical Specifications48 Intel® Xeon® Processor 7400 Series DatasheetFigure 2-20. Voltage Sequence Timing RequirementsFigure 2-21. FERR#/PBE# Valid
Intel® Xeon® Processor 7400 Series Datasheet 49Electrical SpecificationsNotes:1. Ta = T40 (FERR# Valid Delay from STPCLK# Deassertion).2. FERR# / PBE#
Intel® Xeon® Processor 7400 Series Datasheet 5Figures2-1 Intel® Xeon® X7460 Processor Load Current versus Time... 2
Electrical Specifications50 Intel® Xeon® Processor 7400 Series Datasheet
Intel® Xeon® Processor 7400 Series Datasheet 51Mechanical Specifications3 Mechanical SpecificationsThe Intel® Xeon® Processor 7400 Series is packaged
Mechanical Specifications52 Intel® Xeon® Processor 7400 Series DatasheetFigure 3-2. Intel® Xeon® Processor 7400 Series Package Drawing (Sheet 1 of 2)
Intel® Xeon® Processor 7400 Series Datasheet 53Mechanical SpecificationsFigure 3-3. Intel® Xeon® Processor 7400 Series Package Drawing (Sheet 2 of 2)
Mechanical Specifications54 Intel® Xeon® Processor 7400 Series Datasheet3.2 Processor Component Keepout ZonesThe processor may contain components on t
Intel® Xeon® Processor 7400 Series Datasheet 55Mechanical SpecificationsFigure 3-4. Top Side Board Keepout Zones (Part 1)
Mechanical Specifications56 Intel® Xeon® Processor 7400 Series DatasheetFigure 3-5. Top Side Board Keepout Zones (Part 2)
Intel® Xeon® Processor 7400 Series Datasheet 57Mechanical SpecificationsFigure 3-6. Bottom Side Board Keepout Zones
Mechanical Specifications58 Intel® Xeon® Processor 7400 Series DatasheetFigure 3-7. Board Mounting-Hole Keepout Zones
Intel® Xeon® Processor 7400 Series Datasheet 59Mechanical SpecificationsFigure 3-8. Volumetric Height Keep-Ins
6 Intel® Xeon® Processor 7400 Series DatasheetTables1-1 Processor Features...
Mechanical Specifications60 Intel® Xeon® Processor 7400 Series Datasheet3.3 Package Loading SpecificationsTable 3-1 provides dynamic and static load s
Intel® Xeon® Processor 7400 Series Datasheet 61Mechanical Specifications3.4 Package Handling GuidelinesTable 3-2 includes a list of guidelines on pack
Mechanical Specifications62 Intel® Xeon® Processor 7400 Series Datasheet3.8 Processor MarkingsFigure 3-9 shows the topside markings and Figure 3-10 sh
Intel® Xeon® Processor 7400 Series Datasheet 63Mechanical Specifications3.9 Processor Pin-Out CoordinatesFigure 3-11 shows the top view of the process
Mechanical Specifications64 Intel® Xeon® Processor 7400 Series Datasheet
Intel® Xeon® Processor 7400 Series Datasheet 65Pin Listing4 Pin Listing4.1 Processor Pin AssignmentsSection 2.6 contains the front side bus signal gro
Pin Listing66 Intel® Xeon® Processor 7400 Series DatasheetBR0# D20 Common Clk Input/OutputBR1# F12 Common Clk Input/OutputBSEL0 AA3 Power/Other Output
Intel® Xeon® Processor 7400 Series Datasheet 67Pin ListingDP1# AE19 Common Clk Input/OutputDP2# AC15 Common Clk Input/OutputDP3# AE17 Common Clk Input
Pin Listing68 Intel® Xeon® Processor 7400 Series DatasheetTDI C24 TAP InputTDO E25 TAP OutputTESTHI0 A16 Power/Other InputTESTHI1 W3 Power/Other Input
Intel® Xeon® Processor 7400 Series Datasheet 69Pin ListingVCCM9 Power/OtherVCCM23 Power/OtherVCCM25 Power/OtherVCCM27 Power/OtherVCCM29 Power/OtherVCC
Intel® Xeon® Processor 7400 Series Datasheet 7Revision History§Document NumberRevision Description Date320335 001 Initial Release September 2008320335
Pin Listing70 Intel® Xeon® Processor 7400 Series DatasheetVCCAC3 Power/OtherVCCAC16 Power/OtherVCCAC22 Power/OtherVCCAC31 Power/OtherVCCAD2 Power/Othe
Intel® Xeon® Processor 7400 Series Datasheet 71Pin ListingVSSJ29 Power/OtherVSSJ31 Power/OtherVSSK2 Power/OtherVSSK4 Power/OtherVSSK6 Power/OtherVSSK8
Pin Listing72 Intel® Xeon® Processor 7400 Series DatasheetVSSV29 Power/OtherVSSV31 Power/OtherVSSW2 Power/OtherVSSW4 Power/OtherVSSW24 Power/OtherVSSW
Intel® Xeon® Processor 7400 Series Datasheet 73Pin Listing4.1.2 Pin Listing by Pin NumberTable 4-2. Pin Listing by Pin Number (Sheet 1 of 14)Pin No. P
Pin Listing74 Intel® Xeon® Processor 7400 Series DatasheetC23 DEFER# Common Clk InputC24 TDI TAP InputC25 VSSPower/Other InputC26 IGNNE# Async GTL+ In
Intel® Xeon® Processor 7400 Series Datasheet 75Pin ListingF18 DBSY# Common Clk Input/OutputF19 VSSPower/OtherF20 BNR# Common Clk Input/OutputF21 RS2#
Pin Listing76 Intel® Xeon® Processor 7400 Series DatasheetL3 VSSPower/OtherL4 VCCPower/OtherL5 VSSPower/OtherL6 VCCPower/OtherL7 VSSPower/OtherL8 VCCP
Intel® Xeon® Processor 7400 Series Datasheet 77Pin ListingT1 VSSPower/OtherT2 VCCPower/OtherT3 VSSPower/OtherT4 VCCPower/OtherT5 VSSPower/OtherT6 VCCP
Pin Listing78 Intel® Xeon® Processor 7400 Series DatasheetY17 DSTBP1# Source Sync Input/OutputY18 DSTBN1# Source Sync Input/OutputY19 VSSPower/OtherY2
Intel® Xeon® Processor 7400 Series Datasheet 79Pin Listing§AC12 D41# Source Sync Input/OutputAC13 VSSPower/OtherAC14 D50# Source Sync Input/OutputAC15
8 Intel® Xeon® Processor 7400 Series Datasheet
Pin Listing80 Intel® Xeon® Processor 7400 Series Datasheet
Intel® Xeon® Processor 7400 Series Datasheet 81Signal Definitions5 Signal Definitions5.1 Signal DefinitionsTable 5-1. Signal Definitions (Sheet 1 of 8
Signal Definitions82 Intel® Xeon® Processor 7400 Series DatasheetBINIT# I/O BINIT# (Bus Initialization) may be observed and driven by all processor FS
Intel® Xeon® Processor 7400 Series Datasheet 83Signal DefinitionsD[63:0]# I/O D[63:0]# (Data) are the data signals. These signals provide a 64-bit dat
Signal Definitions84 Intel® Xeon® Processor 7400 Series DatasheetDSTBN[3:0]# I/O Data strobe used to latch in D[63:0]#.DSTBP[3:0]# I/O Data strobe use
Intel® Xeon® Processor 7400 Series Datasheet 85Signal DefinitionsIGNNE# I IGNNE# (Ignore Numeric Error) is asserted to force the processor to ignore a
Signal Definitions86 Intel® Xeon® Processor 7400 Series DatasheetPROCHOT# O PROCHOT# (Processor Hot) will go active when the processor’s temperature m
Intel® Xeon® Processor 7400 Series Datasheet 87Signal DefinitionsSM_WP I WP (Write Protect) can be used to write protect the Scratch EEPROM. The Scrat
Signal Definitions88 Intel® Xeon® Processor 7400 Series Datasheet§VID[6:1] O VID[6:1] (Voltage ID) pins are used to support automatic selection of pow
Intel® Xeon® Processor 7400 Series Datasheet 89Thermal Specifications6 Thermal Specifications6.1 Package Thermal SpecificationsThe Intel® Xeon® Proces
Intel® Xeon® Processor 7400 Series Datasheet 9Introduction1 IntroductionALL INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE.The Intel® Xeon® Process
Thermal Specifications90 Intel® Xeon® Processor 7400 Series Datasheetenabled 2U heatsink). In this scenario, it is expected that the Thermal Control C
Intel® Xeon® Processor 7400 Series Datasheet 91Thermal SpecificationsNotes:1. These values are specified at VCC_MAX for all processor frequencies. Sys
Thermal Specifications92 Intel® Xeon® Processor 7400 Series Datasheet2. Implementation of Thermal Profile should result in virtually no TCC activation
Intel® Xeon® Processor 7400 Series Datasheet 93Thermal SpecificationsNotes:1. Thermal Profile is representative of a volumetrically constrained platfo
Thermal Specifications94 Intel® Xeon® Processor 7400 Series DatasheetNotes:1. Thermal Profile is representative of a volumetrically constrained platfo
Intel® Xeon® Processor 7400 Series Datasheet 95Thermal SpecificationsNotes:1. Thermal Profile is representative of a volumetrically constrained platfo
Thermal Specifications96 Intel® Xeon® Processor 7400 Series DatasheetNotes:1. Thermal Profile is representative of a volumetrically constrained platfo
Intel® Xeon® Processor 7400 Series Datasheet 97Thermal Specifications6.1.2 Thermal MetrologyThe minimum and maximum case temperatures (TCASE) are spec
Thermal Specifications98 Intel® Xeon® Processor 7400 Series Datasheetis not software visible. Bus traffic is snooped in the normal manner, and interru
Intel® Xeon® Processor 7400 Series Datasheet 99Thermal Specificationsorder of 5 µs. During the frequency transition, the processor is unable to servic
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