Intel SE7221BK1LX User manual

Intel®Server Board
SE7221BK1-E
Technical Product Specification
Intel order number C91860-001
Revision 1.5
September 2005
Enterprise Platforms and Services Marketing

SE7221BK1-E Technical Product Specification
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Revision History
Date Revision
Number Modifications
July 2004 0.5 Preliminary Release; subject to change.
September 2004 0.8 Revised technical details of PCI subsystem, memory support and GMCH.
September 2004 0.9 Revised connectors section
October 2004 1.0 Released revision
November 2004 1.1 Corrected supported CPU matrix
January 2005 1.2 Added Diagnostic LED codes to error handling and reporting section
February 2005 1.3 Modified Diagnostic LED section. Correct supported CPU matrix.
May 2005 1.4 Added Adaptive Slot pinouts
September 2005 1.5 Added supported video
This product specification applies to the Intel® Server Board SE7221BK1-E with BIOS identifier
SE7221BK10.86B.
Changes to this specification will be published in the Intel® Server Board SE7221BK1-E
Specification Update before being incorporated into a revision of this document.

SE7221BK1-E Technical Product Specification
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Disclaimers
Information in this document is provided in connection with Intel®products. No license, express or
implied, by estoppels or otherwise, to any intellectual property rights is granted by this document. Except
as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability
whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel
products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for
use in medical, life saving, or life sustaining 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.
This document contains information on products in the design phase of development. Do not finalize a
design with this information. Revised information will be published when the product is available. Verify
with your local sales office that you have the latest datasheet before finalizing a design.
Intel Corporation server baseboards contain a number of high-density VLSI and power delivery
components which need adequate airflow to cool. Intel’s own chassis are designed and tested to meet
the intended thermal requirements of these components when the fully integrated system is used
together. It is the responsibility of the system integrator that chooses not to use Intel developed server
building blocks to consult vendor datasheets and operating parameters to determine the amount of
airflow required for their specific application and environmental conditions. Intel Corporation cannot be
held responsible if components fail or the server board does not operate correctly when used outside any
of its published operating or non-operating limits.
The Intel® Server Board SE7221BK1-E 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.
This document and the software described in it is furnished under license and may only be used or
copied in accordance with the terms of the license. The information in this manual is furnished for
informational use only, is subject to change without notice, and should not be construed as a commitment
by Intel Corporation. Intel Corporation assumes no responsibility or liability for any errors or inaccuracies
that may appear in this document or any software that may be provided in association with this document.
Except as permitted by such license, no part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means without the express written consent of Intel
Corporation.
Intel® , Pentium® , Itanium, and Xeon are trademarks or registered trademarks of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Copyright © Intel Corporation 2005.

SE7221BK1-E Technical Product Specification
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Table of contents
1. Introduction ..........................................................................................................................1
2. Server Board Overview........................................................................................................2
2.1 SE7221BK1-E Feature Set......................................................................................2
3. Functional Architecture.......................................................................................................5
3.1 Processor Subsystem..............................................................................................5
3.1.1 Processor VRD........................................................................................................5
3.1.2 Reset Configuration Logic .......................................................................................5
3.1.3 Processor Module Presence Detection ...................................................................5
3.1.4 Processor Support...................................................................................................5
3.1.5 Interrupts and APIC.................................................................................................6
3.2 Memory Subsystem.................................................................................................6
4. The Intel®E7221 Chipset .....................................................................................................9
4.1.1 GMCH Memory Architecture Overview..................................................................10
4.1.2 Graphics Memory Controller Hub (GMCH)............................................................10
4.1.3 ICH6R....................................................................................................................11
4.2 Super I/O ...............................................................................................................13
4.2.1 Serial Ports............................................................................................................13
4.2.2 BIOS Flash ............................................................................................................14
4.2.3 System Health Support..........................................................................................14
5. I/O Subsystem ....................................................................................................................14
5.1 PCI Subsystem......................................................................................................14
5.1.1 P32-A: 32-bit/33-MHz PCI Subsystem...................................................................14
5.1.2 P32-B 66-MHz PCI-X Subsystem (SE7221BK1LX sku only) .............................15
5.1.3 P64-C 66/100-MHz PCI-X Subsystem...................................................................16
5.1.4 PCI-E x8 ................................................................................................................17
5.2 Video Controller.....................................................................................................17
5.3 Network Interface Controller (NIC) ........................................................................17
5.3.1 NIC Connector and Status LEDs...........................................................................18
5.4 Interrupt Routing....................................................................................................18
5.4.1 Legacy Interrupt Routing .......................................................................................18
5.4.2 APIC Interrupt Routing...........................................................................................19
5.4.3 Serialized IRQ Support..........................................................................................20

SE7221BK1-E Technical Product Specification
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5.5 PCI Error Handling.................................................................................................20
6. ACPI Implementation .........................................................................................................24
6.1 ACPI ......................................................................................................................24
6.1.1 Front Panel Switches.............................................................................................24
6.1.2 Wake up Sources (ACPI and Legacy)...................................................................25
7. Connectors .........................................................................................................................26
7.1 Main Power Connector..........................................................................................26
7.2 Intel Adaptive Slot..................................................................................................27
7.3 I2C Header.............................................................................................................30
7.4 Front Panel Connector...........................................................................................31
7.5 VGA Connector......................................................................................................33
7.6 NIC Connector.......................................................................................................33
7.7 IDE Connector.......................................................................................................34
7.8 SATA Connector....................................................................................................34
7.9 USB Connector......................................................................................................35
7.10 Floppy Connector ..................................................................................................35
7.11 Serial Port Connector ............................................................................................36
7.12 Keyboard and Mouse Connector...........................................................................37
7.13 Miscellaneous Headers .........................................................................................37
7.13.1 Fan Header............................................................................................................37
7.13.2 Intrusion Cable Connector.....................................................................................38
7.13.3 HDD LED Header ..................................................................................................38
7.13.4 Rolling BIOS selection header...............................................................................38
8. Configuration Jumpers......................................................................................................39
8.1 System Recovery and Update Jumpers ................................................................39
9. BIOS Setup Utility...............................................................................................................40
9.1 Localization............................................................................................................40
9.2 Console Redirection ..............................................................................................40
9.3 Configuration Reset...............................................................................................40
9.4 Keyboard Commands............................................................................................40
9.5 Entering BIOS Setup .............................................................................................42
9.5.1 Main Menu.............................................................................................................42
9.5.2 Advanced menu.....................................................................................................42
9.5.3 Boot menu .............................................................................................................49
9.5.4 Chipset Menu.........................................................................................................51

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9.5.5 Security menu........................................................................................................53
9.5.6 Server menu..........................................................................................................54
9.5.7 Exit menu...............................................................................................................57
9.6 Upgrading the BIOS...............................................................................................57
9.6.1 Preparing for the Upgrade.....................................................................................57
9.6.2 Flash Architecture and Flash Update Utility...........................................................59
9.6.3 Rolling BIOS and On-line updates.........................................................................59
9.7 Error Handling and Reporting................................................................................62
9.7.1 POST Error Beep Codes .......................................................................................62
9.7.2 BIOS Event Log.....................................................................................................63
9.7.3 POST Progress Codes and Messages..................................................................64
Table 72. POST Code Checkpoints .........................................................................................64
Table 73. Bootblock Initialization Code Checkpoints............................................................66
Table 74. Bootblock Recovery Code Checkpoints ................................................................67
Table 75. DIM Code Checkpoints ............................................................................................68
Table 76. ACPI Runtime Checkpoints.....................................................................................68
9.8 Diagnostic LEDs ....................................................................................................69
9.8.1 Diagnostic LED POST Progress Codes ................................................................69
Table 78. Boot Block POST Progress Codes .........................................................................69
Table 79. POST Progress Codes .............................................................................................70
10. Power Information..............................................................................................................73
10.1 Intel® Server Board SE7221BK1-E Power Budget ...............................................73
10.2 Power Supply Specifications .................................................................................74
10.2.1 Power Timing Requirements .................................................................................74
10.2.2 Dynamic Loading...................................................................................................76
10.2.3 AC Line Transient Specification.............................................................................77
10.2.4 AC Line Fast Transient (EFT) Specification ..........................................................77
11. Absolute Maximum Ratings ..............................................................................................79
11.1 Mean Time Between Failures (MTBF) Test Results..............................................79
12. Hardware Monitoring .........................................................................................................80
12.1 Monitored Components .........................................................................................80
12.2 Fan Speed Control.................................................................................................81
12.3 Chassis Intrusion...................................................................................................82
13. Product Regulatory Compliance.......................................................................................82

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13.1.1 Product Safety Compliance...................................................................................82
13.1.2 Product EMC Compliance .....................................................................................82
13.1.3 Product Regulatory Compliance Markings ............................................................82
13.2 Electromagnetic Compatibility Notices ..................................................................83
13.2.1 FCC (USA).............................................................................................................83
13.2.2 INDUSTRY CANADA (ICES-003)..........................................................................84
13.2.3 Europe (CE Declaration of Conformity) .................................................................84
13.2.4 Taiwan Declaration of Conformity..........................................................................84
13.2.5 Korean RRL Compliance.......................................................................................84
13.2.6 Australia / New Zealand.........................................................................................85
13.3 Replacing the Back-Up Battery..............................................................................85
13.4 Calculated Mean Time Between Failures (MTBF).................................................86
13.5 Mechanical Specifications .....................................................................................86
Glossary........................................................................................................................................I

SE7221BK1-E Technical Product Specification
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List of Tables
Table 1. Processor Support Matrix ..............................................................................................6
Table 2. Memory Bank Labels and DIMM Population Order........................................................8
Table 3. Characteristics of Dual/Single Channel Configuration with/without Dynamic Mode ......9
Table 4. Supported DDR2 modules...........................................................................................10
Table 5. PCI Bus Segment Characteristics................................................................................14
Table 6. P32-A Configuration IDs..............................................................................................15
Table 7. P32-A Arbitration Connections.....................................................................................15
Table 8. P32-B Configuration IDs..............................................................................................15
Table 9. P32-B Arbitration Connections.....................................................................................16
Table 10. P64-C Configuration IDs............................................................................................16
Table 11. P64-C Arbitration Connections ..................................................................................16
Table 12. PCI-E x 8 Connections..............................................................................................17
Table 13. Supported On-board Video Modes.............................................................................17
Table 14. PCI AND PCI-X Interrupt Routing/Sharing.................................................................18
Table 15. Interrupt Definitions....................................................................................................19
Table 16. Supported Wake Events............................................................................................25
Table 17. Power Connector Pin-out (CN4H1)............................................................................26
Table 18. Auxiliary CPU Power Connector Pin-out (CN4B1).....................................................26
Table 19. Intel Adaptive Slot pinout............................................................................................27
Table 20. HSBP Header Pin-out (J1D1)....................................................................................30
Table 21. LCD Header Pin-out (J1C1).......................................................................................31
Table 22. LEGEND SE_LINK Header Pin-out (J2B1)................................................................31
Table 23. Front Panel 34-Pin Header Pin-out (J1J1).................................................................31
Table 24. VGA Connector Pin-out (J8A1)..................................................................................33
Table 25. NIC1-82541PI(10/100/1000) Connector Pin-out (J5A1)............................................33
Table 26. NIC2-82541PI (10/100/1000) Connector Pin-out (J6A1)...........................................33
Table 27. ATA 40-pin Connector Pin-out (J3J1)........................................................................34
Table 28. SATA Connector Pin-out (J1G1, J1G2, J1J2, J2J1)..................................................34
Table 29. USB Connectors Pin-out (J5A1)................................................................................35
Table 30. Optional USB Connection Header Pin-out (J4F1) .....................................................35
Table 31. Legacy 34-pin Floppy Connector Pin-out (JP3J1).....................................................35
Table 32. External DB9 Serial A Port Pin-out (J8A1).................................................................36

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Table 33. 9-pin Header Serial B Port Pin-out (J1B1).................................................................36
Table 34. Keyboard and Mouse PS/2 Connectors Pin-out (KM9A1).........................................37
Table 35. Three-pin Fan Headers Pin-out (JP5J1, JP5J2, JP7A1, JP6A1)...............................37
Table 36. Eight-pin Fan Header Pin-out (J6J1, J6J2, J6J3, and J6J4)......................................37
Table 37. Intrusion Cable Connector (J1A1)Pin-Out .................................................................38
Table 38. HDD LED Header (J1E1) Pin-Out..............................................................................38
Table 39. HDD LED Header (J1E1) Pin-Out..............................................................................38
Table 40. System Recovery and Update Jumper Options.........................................................39
Table 41. BIOS Setup Keyboard Command Bar Options..........................................................40
Table 42. BIOS Setup, Main Menu Options...............................................................................42
Table 43. BIOS Setup, Advanced Menu Options.......................................................................42
Table 44. BIOS Setup, Processor configuration sub-menu options...........................................43
Table 45. BIOS Setup IDE Configuration Menu Options ............................................................43
Table 46. BIOS Setup, IDE Device Configuration Sub-menu Selections ..................................45
Table 47. BIOS Setup, Floppy Configuration Sub-menu Selections..........................................46
Table 48. BIOS Setup, Super I/O Configuration Sub-menu.......................................................46
Table 49. BIOS Setup, USB Configuration Sub-menu Selections..............................................46
Table 50. BIOS Setup, USB Mass Storage Device Configuration Sub-menu Selections..........47
Table 51. BIOS Setup, PCI Configuration Sub-menu Selections ..............................................47
Table 52. BIOS Setup, Memory Configuration Sub-menu Selections........................................48
Table 53. BIOS Setup, Boot Menu Selections...........................................................................49
Table 54. BIOS Setup, Boot Settings Configuration Sub-menu Selections...............................49
Table 55. BIOS Setup, Boot Device Priority Sub-menu Selections ...........................................50
Table 56. BIOS Setup, Hard Disk Drive Sub-Menu Selections..................................................50
Table 57. BIOS Setup, Removable Drives Sub-menu Selections..............................................50
Table 58. BIOS Setup, ATAPI CDROM Drives Sub-menu Selections.......................................50
Table 59. BIOS Setup, ATAPI CDROM Drives Sub-menu Selections.......................................51
Table 60. BIOS Setup, ATAPI CDROM Drives Sub-menu Selections.......................................51
Table 61. BIOS Setup, ATAPI CDROM Drives Sub-menu Selections.......................................52
Table 62. BIOS Setup, ATAPI CDROM Drives Sub-menu Selections.......................................52
Table 63. BIOS Setup, Security Menu Options..........................................................................53
Table 64. BIOS Setup, Server Menu Selections........................................................................54
Table 65. BIOS Setup, System Management Sub-menu Selections..........................................55
Table 66. BIOS Setup Serial Console Features Sub-menu Selections.....................................56
Table 67. BIOS Setup, Event Log Configuration Sub-menu Selections ....................................56

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Table 68. BIOS Setup, Exit Menu Selections ............................................................................57
Table 69. POST Error Beep Codes ...........................................................................................62
Table 70. BIOS Recovery Beep Codes .....................................................................................62
Table 71. POST Error Messages and Handling.........................................................................63
Table 72. POST Code Checkpoints............................................................................................64
Table 73. Bootblock Initialization Code Checkpoints..................................................................66
Table 74. Bootblock Recovery Code Checkpoints......................................................................67
Table 75. DIM Code Checkpoints...............................................................................................68
Table 76. ACPI Runtime Checkpoints ........................................................................................68
Table 77. POST Progress Code LED Example ..........................................................................69
Table 78. Boot Block POST Progress Codes.............................................................................69
Table 79. POST Progress Codes ...............................................................................................70
Table 80. The Board Power Budget...........................................................................................73
Table 81. The Board Power Supply Voltage Specification ........................................................74
Table 82. Output Voltage Timing...............................................................................................74
Table 83. Turn On/Off Timing....................................................................................................75
Table 84. Transient Load Requirements....................................................................................76
Table 85. AC Line Sag Transient Performance.........................................................................77
Table 86. AC Line Surge Transient Performance......................................................................77
Table 87. Absolute Maximum Ratings.......................................................................................79
Table 88. Monitored Components..............................................................................................80
Table 89. Product Certification Markings....................................................................................83
Table 90. MTBF Data.................................................................................................................86

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List of Figures
Figure 1. Intel® Server Board SE7221BK1-E Diagram ..............................................................4
Figure 2. Memory Bank Label Definition......................................................................................8
Figure 3. Interrupt Routing Diagram ..........................................................................................21
Figure 4. ICH6R Interrupt Routing Diagram...............................................................................22
Figure 5. PXH Interrupt Routing Diagram..................................................................................23
Figure 6. System Recovery and Update Jumpers (J1F2)..........................................................39
Figure 7. BIOS Recovery Jumper..............................................................................................62
Figure 8. Output Voltage Timing................................................................................................75
Figure 9. Turn On/Off Timing (Power Supply Signals)...............................................................76
Figure 10. Fan Speed Control Block Diagram...........................................................................81
Figure 11. SE7221BK1-E Server Board Mechanical Drawing....................................................87
Figure 12. SKU 1 Pedestal mount I/O shield mechanical drawing ...........................................88
Figure 13. SKU 2 Pedestal mount I/O shield mechanical drawing ...........................................89

SE7221BK1-E Technical Product Specification
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1. Introduction
This Intel® Server Board SE7221BK1-E Technical Product Specification (TPS) provides a high-
level technical description for the Intel®Server Board SE7221BK1-E. It details the architecture
and feature set for all functional sub-systems that make up the server board.
This document is divided into the following main categories:
Chapter 2. Server Board Overview
Chapter 3. Functional Architecture
Chapter 4. The Intel® E7221 Chipset
Chapter 5. I/O Subsystem
Chapter 6. ACPI Implementation
Chapter 7. Connectors
Chapter 8. Configuration Jumpers
Chapter 9. BIOS Setup Utility
Chapter 10. Absolute Maximum Ratings
Chapter 11. Power Information
Chapter 12. Hardware Monitoring
Chapter 13. Product Regulatory Compliance
Chapter 14. Glossary

SE7221BK1-E Technical Product Specification
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2. Server Board Overview
2.1 SE7221BK1-E Feature Set
The Intel® Server Board SE7221BK1-E supports the following feature set:
Processor and Front Side Bus (FSB) support
- Supports single Intel® Pentium® 4 and Celeron® processors in an LGA775 package
- Capable of 800 MT/s on system bus
- Supports Hyper-Threading Technology
- Supports Intel® Extended Memory System 64 Technology (EM64T)
Intel® E7221 chipset components
- GMCH integrated graphics controller in GMCH component (Intel® GMA 900)
- ICH6R I/O controller
- PXH PCI-X Hub
- 12-deep In-Order Queue
Memory System
- 4 DIMM sockets supporting 400/533MHz DDR2 DIMMs
- Data bandwidth per channel of 4.2GB/s or 8.5GB/s in dual channel when using DDR2
533MHz
-Support for up to two DDR2 channels for a total of 4 DIMMs (2 DIMMs /Channel) providing
up to 4GB max memory capacity.
-Support for 256MB, 512MB, 1GB and 2GB DRAM sizes
-Supports Performance Acceleration Technology (PAT)
I/O Subsystem
Four independent PCI Buses:
Segment A: One PCI 32-bit/33-MHz, 5 V connector supporting full length PCI add-in
cards and one embedded device(Supports PCI Specification, Rev 2.3)
One Intel® 10/100/1000 82541PI gigabit Ethernet Controller
Segment B: One PCI 32-bit/66-MHz embedded device (SE7221BK1LX sku only)
One Intel® 10/100/1000 82541PI gigabit Ethernet Controller
Segment C: Two PCI-X 64-bit/66-MHz, 3.3 V slots supporting full length / full height PCI
/ PCI-X add-in cards or one 3.3V PCI-X 64-bit/100-MHz slot with riser card (SE7221BK1LX
sku only)
Segment D: One x8 PCI Express* slot supporting x1/x2/x4/x8 PCI Express* add-in card
or one x8 PCI Express* slot with riser card (SE7221BK1LX sku only)
Serial ATA host controller
- Four independent SATA ports supports data transfer rates up to 1.5 Gb/s (150MB/s) per
port
IDE controller
- One IDE connector, supporting up to two ATA-100 compatible devices

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USB 2.0
Two external Universal Serial Bus (USB) ports with an additional internal header providing
two optional USB ports for front panel support.
-Supports wake-up from sleeping states S1-S4
-Supports legacy Keyboard/Mouse connections when using PS2-USB dongle
LPC (Low Pin Count) bus segment with one embedded devices:
Super I/O (Super IO) controller chip, NS PC87427, providing all PC-compatible I/O (floppy,
serial, keyboard, mouse, two serial com port ) and integrated hardware monitoring
SSI-compliant connectors for SSI interface support: front panel and power
connectors.
Support for up to four system fans and one processor fan

SE7221BK1-E Technical Product Specification
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TP01326
HA B C D E F G
EE
CC
AA
Z
Y
X
W
BB
DD
J
I
V U T S NR Q P OM L
DIMM 1A Socket
DIMM 2B Socket
DIMM 1B Socket
DIMM 2A Socket
CPU
Socket
K
Figure 1. Intel® Server Board SE7221BK1-E Diagram
A Chassis Intrusion Header
L DIMM Sockets (two – from left to right: DIMM 1B, DIMM 2B) W 34-pin Front Panel Connector
B PCI Slot M DIMM Sockets (two – from left to
right: DIMM 1A, DIMM 2A) X Serial ATA (SATA) 2 Connector
C PCI-X 100 SLOT N Front USB Header (optional) Y SATA 1 Connector
D PCI-X 100 SLOT O System Fan Headers (for Intel®
Server Board SR1425BK1-E) Z BIOS Control Jumper
E PCI-Express* or Riser Connector
Slot P System Fan #4 AA BIOS Select Jumper
F +12v CPU Power Q System Fan #3 (optional) BB HDD LED Header
G System Fan #1 (optional) R Main Power Connector CC HSBP Header
H Back Panel I/O Connectors S Floppy Connector DD Battery
I System Fan #2 (optional) T IDE Connector EE Serial B Header
J CPU Fan (optional) U SATA 4 Connector
K CPU Socket V SATA 3 Connector

SE7221BK1-E Technical Product Specification
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3. Functional Architecture
This chapter provides a high-level description of the functionality distributed between the
architectural blocks of the Intel® Server Board SE7221BK1-E.
3.1 Processor Subsystem
The Intel® Server Board SE7221BK1-E supports Intel® Pentium® 4 and Celeron® D
processors in the 775-land package, which is a follow on to Pentium® 4 and Celeron® D
processors in the 478-pin package, with enhancements to the Intel® NetBurst® micro-
architecture. Intel® Pentium® 4 and Celeron® D processors built on 90nm process technology
in the 775-land package utilize Flip-Chip Land Grid Array (FC-LGA4) package technology, and
plug into a 775-land LGA socket, referred to as the LGA775 socket. Pentium® 4 and Celeron®
D processors in the 775-land package, like their predecessors in the 478-pin package, are
based on the same Intel® 32-bit micro-architecture and maintain the tradition of compatibility
with IA-32 software. Specific models of the Pentium® 4 Processor in the LGA775 package
support Intel® EM64T (Extended Memory 64 Technology) for 64bit native mode operation with
64bit operating systems. The Intel® Celeron® Processor currently does not support EM64T.
3.1.1 Processor VRD
The Intel® Server Board SE7221BK1-E has a VRD (Voltage Regulator Down) to support one
processor. It is compliant with the VRM 10.1 DC-DC Converter Design Guide Line and provides
a maximum of 120A, which is capable of supporting the requirements for Intel® Pentium® 4 and
Intel® Celeron® D processors.
The board hardware must monitor the processor VTTEN (Output enable for VTT) pin before
turning on the VRD. If the VTTEN pin of the processors is not identical the Power ON Logic will
not turn on the VRD.
3.1.2 Reset Configuration Logic
The BIOS determines the processor stepping, cache size, etc through the CPUID instruction.
The requirements are as follows:
Processors run at a fixed speed, but can be programmed by BIOS to operate at a lower
or higher speed.
The processor information is read at every system power-on.
Note: The processor speed is the processor power on reset default value. No manual processor
speed setting options exist either in the form of a BIOS setup option or jumpers.
3.1.3 Processor Module Presence Detection
SE7221BK1-E does not support this function.
3.1.4 Processor Support
The Intel® Server Board SE7221BK1-E supports one processor in the LGA775 package. The
support circuitry on the server board consists of the following:

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LGA775 processor socket supporting 800MHz FSB Intel® Pentium® 4 processor.
Processor host bus AGTL+ support circuitry.
Table 1. Processor Support Matrix
Processor Family Package Type Frequency Cache Size Front Side Bus
Pentium® 4 LGA775 3.0 - 3.8 GHz 2MB L2 800MHz
Pentium® 4 LGA775 2.8 - 3.8 GHz 1MB L2 800MHz
Celeron® D LGA775 2.26 - 2.93 GHz 256K L2 533MHz
Note: The Pentium® 4 Processor Extreme Edition IS NOT supported for use with the
Intel® Server Board SE7221BK1-E.The board is designed to provide up to 120A of
processor current. Processors with higher current requirements are not supported. For a
complete list of all supported processors, please visit the Intel® Server Board
SE7221BK1-E support site located at the following URL:
http://support.intel.com/support/motherboards/server/sb/CS-012690.htm
In addition to the circuitry described above, the processor subsystem contains the following:
Reset configuration logic
Server management registers and sensors
3.1.5 Interrupts and APIC
Interrupt generation and notification to the processor is done by the APICs in the ICH6R using
messages on the front side bus.
3.2 Memory Subsystem
The baseboard supports up to four DIMM slots for a maximum memory capacity of 4 GB. The
DIMM organization is x72, which includes eight ECC check bits. The memory interface runs at
400/533MT/s. The memory controller supports memory scrubbing, single-bit error correction and
multiple-bit error detection and Intel® x4 SDDC support with x4 DIMMs. Memory can be
implemented with either single sided (one row) or double-sided (two row) DIMMs.
3.2.1.1 Memory DIMM Support
The board supports un-buffered (not registered) DDR2 400/533-compliant ECC or Non-ECC
DIMMs operating at 400/533MT/s. Only DIMMs tested and qualified by Intel or a designated
memory test vendor are supported on this board. A list of qualified DIMMs is available at
http://support.intel.com/support/motherboards/server/SE7221BK1E. Note that all DIMMs are
supported by design, but only fully qualified DIMMs will be supported on the board.
The minimum supported DIMM size is 256 MB. Therefore, the minimum main memory
configuration is 1 x 256 MB or 256 MB. The largest size DIMM supported is 2 GB however, the
maximum main memory configuration is 4 GB implemented by 4 x 1 GB or 2 x 2 GB DIMMs.
Only un-buffered DDR2 400/533 compliant, ECC x8 and Non-ECC x8 or x16 memory
DIMMs are supported
ECC single-bit errors (SBE) will be corrected and multiple-bit error (MBE) will be
detected.
Intel® Server Board SE7221BK1-E also supports Intel® x4 SDDC with x4 DIMMs.

SE7221BK1-E Technical Product Specification
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The maximum memory capacity is 4 GB
Note* Although the Intel® Server Board SE7221BK1-E supports a maximum memory
capacity of 4 GB, system resources consume roughly 750 MB of physical memory in the
maximum memory configuration. As a result, when 4 GB of memory is used, the amount of
memory made available to the operating system is significantly lower than 4 GB; roughly
3200 MB. THIS IS ONLY AN ISSUE WHEN 4 GB OF MEMORY IS USED. A memory
configuration of less than 4 GB will not be susceptible to this issue. Please refer to Intel®
Technical Advisory TA 719-01 on the support web site located at
http://support.intel.com/support/motherboards/server/SE7221BK1E.
The minimum memory capacity is 256 MB via 1 x 256 MB DIMM module
3.2.1.2 Memory Configuration
The memory interface between the GMCH and the DIMMs is 64-bit (non-ECC) or 72-bit (ECC)
wide interface.
There are two banks of DIMMs, labeled 1 and 2. Bank 1 contains DIMM socket locations
DIMM_1A and DIMM_2A. Bank 2 contains DIMM socket locations DIMM_1B and DIMM_2B.
The sockets associated with each bank or “channel”, are located next to each other and the
DIMM socket identifiers are marked on the baseboard silkscreen, near the DIMM socket. Bank 1
is associated with Memory Channel A while Bank 2 is associated with Memory Channel B.
When only two DIMM modules are being used, the population order must be DIMM_1A,
DIMM_1B to ensure dual channel operating mode.
To reiterate: In order to operate in Dual Channel Dynamic Paging Mode, the following conditions
must be met:
•2 identical DIMMs are installed, one each in DIMM_1A and DIMM_1B
•4 identical DIMMs are installed (one in each socket location)
Installing only 3 DIMMs is not supported. Do not use DIMMs that are not “matched”
(same type and speed). Use of identical memory parts is always the preferred method.
See Table 2 and Figure 2 on the following page for reference.
The system design is free to populate or not to populate any rank on either channel, including
either degenerate single channel case.
DIMM and memory configurations must adhere to the following:
DDR2 400/533 , un-buffered, DDR2 DIMM modules
DIMM organization: x72 ECC or x 64 Non-ECC
Pin count: 240
DIMM capacity: 256 MB, 512 MB, 1 GB DIMMs
Serial PD: JEDEC Rev 2.0
Voltage options: 1.8 V
Interface: SSTL2

SE7221BK1-E Technical Product Specification
8
Table 2. Memory Bank Labels and DIMM Population Order
Location DIMM Label Channel Population Order
J8J1 (DIMM_1A) A 1
J8J2 (DIMM_2A) A 3
J9J2 (DIMM_1B) B 2
J9J1 (DIMM_2B) B 4
1
3
2
4
Channel A
(Bank 1)
Channel B
(Bank 2)
DIMM_1A
DIMM_2A
DIMM_1B
DIMM_2B
J8J1 J8J2 J9J2 J9J1
Figure 2. Memory Bank Label Definition
Table 3 summarizes the characteristics of dual and single channel configurations with and
without the use of Dynamic Mode.