Intel SE7525GP2 User manual

Intel®Server Boards
SE7320SP2 and SE7525GP2
Technical Product Specification
Intel reference number D24635-004
Revision 4.0
December, 2005
Enterprise Platforms and Services Division - Marketing

Revision History Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
ii
Revision History
Date Revision
Number Modifications
June 2004 1.0 Initial Release
November 2004 2.0 Updated and clarified memory support, removed LX SKU references, added MTBF
calculations, performed general grammar and spelling updates.
September 2005 3.0
Updated supported processors matrix and BIOS setup options according to new
BIOS release, modified front panel pin-out description, updated the function
introduction of Wake on LAN from S5
December 2005 4.0 Added the introduction of CME counter in the section “3.5.4 – Disabling DIMMs”,
added the tip of fan configuration when integrated in third-party chassis
Disclaimers
Information in this document is provided in connection with Intel®products. No license, express or implied, by
estoppel 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.
The Intel® Server Boards SE7320SP2 and SE7525GP2 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.
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.
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. All rights reserved.

Intel® Server Boards SE7320SP2 and SE7525GP2 Contents
Revision 4.0
iii
Table of Contents
1. Introduction ..........................................................................................................................1
1.1 Chapter Outline........................................................................................................1
1.2 Server Board Use Disclaimer ..................................................................................1
2. Server Board Overview........................................................................................................2
2.1 Intel®Server Board SE7320SP2.............................................................................. 2
2.1.1 Intel®Server Board SE7320SP2 Feature Set..........................................................2
2.2 Intel®Server Board SE7525GP2 .............................................................................4
2.2.1 Intel®Server Board SE7525GP2 Feature Set .........................................................4
3. Functional Architecture.......................................................................................................8
3.1 Processor Sub-system.............................................................................................9
3.1.1 Processor Voltage Regulator Devices (VRDs) ...................................................... 10
3.1.2 Reset Configuration Logic ..................................................................................... 10
3.1.3 Processor Module Presence Detection .................................................................10
3.1.4 GTL2006................................................................................................................10
3.1.5 Common Enabling Kit (CEK) Design Support........................................................ 11
3.1.6 Processor Support .................................................................................................12
3.1.7 Multiple Processor Initialization .............................................................................14
3.1.8 CPU Thermal Sensors...........................................................................................15
3.1.9 Processor Thermal Control Sensor .......................................................................15
3.1.10 Processor Thermal Trip Shutdown ........................................................................ 15
3.1.11 Processor IERR .....................................................................................................15
3.2 Intel®E7320 Chipset (Intel®Server Board SE7320SP2) ....................................... 15
3.2.1 Memory Controller Hub (MCH) .............................................................................. 16
3.3 Intel®E7525 Chipset (Intel®Server Board SE7525GP2)....................................... 17
3.3.1 Memory Controller Hub (MCH) .............................................................................. 18
3.4 Intel®6300ESB ICH ............................................................................................... 19
3.4.1 PCI Interface..........................................................................................................20
3.4.2 IDE Interface (Bus Master Capability and Synchronous DMA Mode).................... 20
3.4.3 SATA Controller.....................................................................................................20
3.4.4 Low Pin Count (LPC) Interface ..............................................................................20
3.4.5 Compatibility Modules (DMA Controller, Timer/Counters, Interrupt Controller) ..... 20
3.4.6 Advanced Programmable Interrupt Controller (APIC)............................................ 21

Contents Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
iv
3.4.7 Universal Serial Bus (USB) Controller ................................................................... 21
3.4.8 RTC .......................................................................................................................21
3.4.9 GPIO......................................................................................................................21
3.4.10 Enhanced Power Management .............................................................................22
3.4.11 System Management Bus (SMBus 2.0).................................................................22
3.5 Memory Sub-System .............................................................................................22
3.5.1 Memory Sizing .......................................................................................................22
3.5.2 Memory Population................................................................................................23
3.5.3 I2C Bus...................................................................................................................25
3.5.4 Disabling DIMMs.................................................................................................... 26
3.5.5 Memory RASUM Features.....................................................................................27
3.6 I/O Sub-System ..................................................................................................... 30
3.6.1 PCI Subsystem ......................................................................................................30
3.6.2 Split Option ROM...................................................................................................32
3.6.3 Interrupt Routing ....................................................................................................32
3.6.4 IDE Support ...........................................................................................................36
3.6.5 SATA Support........................................................................................................36
3.6.6 Video Controller .....................................................................................................37
3.6.7 Network Interface Controller (NIC) ........................................................................39
3.6.8 USB 2.0 Support....................................................................................................40
3.6.9 Super I/O Chip ....................................................................................................... 40
3.6.10 BIOS Flash ............................................................................................................ 43
3.7 Configuration and Initialization............................................................................... 43
3.7.1 Memory Space....................................................................................................... 43
3.7.2 I/O Map ..................................................................................................................50
3.7.3 Accessing Configuration Space............................................................................. 52
3.8 Clock Generation and Distribution ......................................................................... 55
3.8.1 Real Time Clock ....................................................................................................55
4. System BIOS.......................................................................................................................56
4.1 BIOS Identification String.......................................................................................56
4.2 BIOS POST Splash Screen ................................................................................... 57
4.2.1 User Interface ........................................................................................................57
4.3 BIOS Setup Utility .................................................................................................. 60
4.3.1 Localization............................................................................................................ 60
4.3.2 Console Redirection ..............................................................................................60

Intel® Server Boards SE7320SP2 and SE7525GP2 Contents
Revision 4.0
v
4.3.3 Configuration Reset ...............................................................................................60
4.3.4 Keyboard Commands ............................................................................................61
4.4 Entering BIOS Setup .............................................................................................62
4.4.1 Main Menu .............................................................................................................62
4.4.2 Advanced Menu.....................................................................................................63
4.4.3 Boot Menu ............................................................................................................. 73
4.4.4 Security Menu........................................................................................................75
4.4.5 Server Menu ..........................................................................................................76
4.4.6 Exit Menu...............................................................................................................81
4.5 Flash Update Utility................................................................................................81
4.6 Rolling BIOS and On-line Updates ........................................................................ 81
4.7 Flash Update Utility................................................................................................82
4.7.1 Flash BIOS ............................................................................................................82
4.7.2 User Binary Area ...................................................................................................84
4.7.3 Recovery Mode...................................................................................................... 84
4.7.4 Update OEM Logo .................................................................................................86
4.8 OEM Binary ........................................................................................................... 88
4.9 Operating System Boot, Sleep, and Wake ............................................................ 89
4.9.1 Microsoft Windows* Compatibility.......................................................................... 89
4.9.2 Advanced Configuration and Power Interface (ACPI) ...........................................89
4.9.3 Sleep and Wake Functionality ...............................................................................90
4.9.4 Power Switch Off to On .........................................................................................90
4.9.5 On to Off (OS absent)............................................................................................91
4.9.6 On to Off (OS present)........................................................................................... 91
4.9.7 System Sleep States .............................................................................................91
4.10 Security.................................................................................................................. 92
4.10.1 Operating Model ....................................................................................................93
4.10.2 Administrator/User Passwords and F2 Setup Usage Model.................................. 93
4.10.3 Password Clear Jumper ........................................................................................95
4.11 Extensible Firmware Interface (EFI) ...................................................................... 95
4.11.1 EFI Shell ................................................................................................................95
5. Platform Management........................................................................................................95
5.1.1 5V Standby ............................................................................................................97
5.1.2 IPMI Messaging, Commands, and Abstractions.................................................... 97
5.1.3 IPMI Sensor Model ................................................................................................ 98

Contents Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
vi
5.1.4 Private Management Buses................................................................................... 98
5.1.5 Mini-Baseboard Management Controller ............................................................... 99
5.2 Onboard Platform Instrumentation Features and Functionality ........................... 101
5.2.1 mBMC Self-test.................................................................................................... 102
5.2.2 SMBus Interfaces ................................................................................................ 102
5.2.3 External Interface to mBMC................................................................................. 102
5.2.4 Messaging Interfaces...........................................................................................103
5.2.5 Direct Platform Control (IPMI over LAN).............................................................. 105
5.2.6 Wake On LAN / Power On LAN and Magic Packet Support................................ 107
5.2.7 Watchdog Timer ..................................................................................................108
5.2.8 System Event Log (SEL) .....................................................................................108
5.2.9 Sensor Data Record (SDR) Repository ............................................................... 109
5.2.10 Event Message Reception...................................................................................109
5.2.11 Event Filtering and Alerting..................................................................................109
5.2.12 NMI Generation ................................................................................................... 112
5.2.13 SMI Generation....................................................................................................113
5.3 Platform Management Interconnects...................................................................113
5.3.1 Power Supply Interface Signals........................................................................... 113
5.3.2 System Reset Control..........................................................................................115
5.3.3 Temperature-based Fan Speed Control .............................................................. 115
5.3.4 Front Panel Control..............................................................................................116
5.3.5 Secure Mode Operation.......................................................................................119
5.3.6 FRU Information .................................................................................................. 120
5.4 Sensors................................................................................................................121
5.4.1 Sensor Type Codes ............................................................................................. 121
6. Error Reporting and Handling.........................................................................................126
6.1 Error Logging .......................................................................................................126
6.1.1 Error Sources and Types.....................................................................................126
6.1.2 SMI Handler.........................................................................................................126
6.1.3 Single-bit ECC Error Throttling Prevention .......................................................... 128
6.2 Error Messages and Error Codes ........................................................................129
6.2.1 POST Error Codes and Messages ...................................................................... 129
6.2.2 Boot Block Error Beep Codes..............................................................................132
6.2.3 POST Error Beep Codes ..................................................................................... 132
6.2.4 "POST Error Pause" Option.................................................................................133

Intel® Server Boards SE7320SP2 and SE7525GP2 Contents
Revision 4.0
vii
6.3 Checkpoints .........................................................................................................133
6.3.1 System ROM BIOS POST Task Test Point (Port 80h Code)............................... 133
6.3.2 Diagnostic LEDs ..................................................................................................133
6.3.3 POST Code Checkpoints..................................................................................... 135
6.3.4 Bootblock Initialization Code Checkpoints........................................................... 137
6.3.5 Bootblock Recovery Code Checkpoint ................................................................ 138
6.3.6 DIM Code Checkpoints........................................................................................139
6.3.7 ACPI Runtime Checkpoints .................................................................................139
6.3.8 Memory Error Codes ...........................................................................................140
6.4 Intel®Light-Guided Diagnostics ...........................................................................140
7. Connector Definitions and Pin-outs...............................................................................141
7.1 Main Power Connector ........................................................................................141
7.2 Memory Module Connector .................................................................................142
7.3 Processor Socket.................................................................................................143
7.4 I2C Headers .........................................................................................................146
7.5 PCI Slot Connector .............................................................................................. 147
7.6 Front Panel Connector.........................................................................................151
7.7 VGA Connector....................................................................................................152
7.8 NIC Connector .....................................................................................................152
7.9 IDE Connector .....................................................................................................153
7.10 SATA Connectors ................................................................................................153
7.11 USB Connector....................................................................................................154
7.12 Floppy Connector ................................................................................................155
7.13 Serial Port Connector ..........................................................................................156
7.14 Keyboard and Mouse Connector ......................................................................... 157
7.15 Miscellaneous Headers .......................................................................................157
7.15.1 Fan Header..........................................................................................................157
7.15.2 Intrusion Cable Connector ................................................................................... 158
7.15.3 SCSI LED Header................................................................................................ 158
7.16 Configuration Jumpers.........................................................................................159
7.16.1 System Recovery and Update Jumpers .............................................................. 159
7.16.2 Rolling BIOS Bank Selection Jumper .................................................................. 160
8. General Specifications.....................................................................................................161
8.1 Absolute Maximum Ratings ................................................................................. 161
8.2 Mean Time Between Failure (MTBF)................................................................... 161

Contents Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
viii
8.3 Processor Power Support....................................................................................162
8.4 Power Supply Specifications ...............................................................................162
8.4.1 Power Timing.......................................................................................................162
8.4.2 Voltage Recovery Timing Specifications .............................................................166
9. Product Regulatory Compliance.....................................................................................167
9.1 Product Safety Compliance .................................................................................167
9.1.1 Product EMC Compliance ...................................................................................167
9.1.2 Mandatory/Standard: Certifications, Registration, Declarations .......................... 168
9.1.3 Product Regulatory Compliance Markings .......................................................... 168
9.2 Electromagnetic Compatibility Notices ................................................................168
9.2.1 Europe (CE Declaration of Conformity) ............................................................... 168
9.2.2 Australian Communications Authority (ACA) (C-Tick Declaration of Conformity) 168
9.2.3 Ministry of Economic Development (New Zealand) Declaration of Conformity ...169
9.2.4 BSMI (Taiwan) .....................................................................................................169
9.3 Replacing the Back up Battery ............................................................................169
Appendix A: Integration and Usage Tips..............................................................................171
Glossary...................................................................................................................................172
List of Figures
Figure 1. Intel®Server Board SE7320SP2 Layout........................................................................ 3
Figure 2. Intel®Server Board SE7525GP2 Layout .......................................................................6
Figure 3. Intel®Server Board SE7320SP2 Block Diagram ...........................................................8
Figure 4. Intel®Server Board SE7525GP2 Block Diagram........................................................... 9
Figure 5. CEK Processor Mounting ............................................................................................11
Figure 6. DIMM Socket Configuration.........................................................................................24
Figure 7. Interrupt Routing (Intel®6300ESB Internal) ................................................................. 34
Figure 8. Interrupt Routing ..........................................................................................................35
Figure 9. Intel®Xeon®Processor Memory address Space ......................................................... 44
Figure 10. DOS Compatibility Region ......................................................................................... 45
Figure 11 Extended Memory Map.............................................................................................. 47
Figure 12. CONFIG_ADDRES Register......................................................................................53
Figure 13. Block Diagram of Platform Managment Architecture................................................. 96
Figure 14. mBMC in a Server Management System................................................................. 101

Intel® Server Boards SE7320SP2 and SE7525GP2 Contents
Revision 4.0
ix
Figure 15. External Interfaces to mBMC...................................................................................102
Figure 16. IPMI-over-LAN ......................................................................................................... 106
Figure 17. Power Supply Control Signals .................................................................................113
Figure 18. Location of Diagnostic LEDs (Example only)........................................................... 134
Figure 19. System Configuration Jumpers (J17) ......................................................................159
Figure 20. BIOS Bank Jumper (J26).........................................................................................160
Figure 21. Output Voltage Timing ............................................................................................. 163
Figure 22. Turn On / Off Timing ................................................................................................ 165
List of Tables
Table 1. Intel®Server Board SE7320SP2 Layout Reference .......................................................4
Table 2. Intel®Server Board SE7525GP2 Layout Reference ....................................................... 7
Table 3. Processor Support Matrix .............................................................................................12
Table 4. Supported DDR-266 DIMM Populations ....................................................................... 24
Table 5. Supported DDR-333 DIMM Populations ....................................................................... 25
Table 6. DIMM Module Capacities..............................................................................................25
Table 7. Possible Memory Capacities.........................................................................................25
Table 8. Suggested SEC Threashold Prescale Settings ............................................................ 27
Table 9. DIMM Threshold Values by DIMM Size ........................................................................ 27
Table 10. PCI Bus Segment Characteristics............................................................................... 30
Table 11. PCI Interrupt Routing/Sharing.....................................................................................32
Table 12. Interrupt Definitions..................................................................................................... 33
Table 13. Video Modes ...............................................................................................................38
Table 14. Video Memory Interface..............................................................................................39
Table 15. Super I/O GPIO Usage Table .....................................................................................41
Table 16. Serial B Header Pin-out ..............................................................................................42
Table 17. SMM Space Table ......................................................................................................49
Table 18. I/O Map ....................................................................................................................... 50
Table 19. PCI Configuration IDs and Device Numbers............................................................... 53
Table 20. Sample BIOS Popup Menu.........................................................................................59
Table 21. BIOS Setup Keyboard Command Bar Options ........................................................... 61
Table 22. BIOS Setup, Main Menu Options................................................................................62

Contents Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
x
Table 23. BIOS Setup, Advanced Menu Options........................................................................ 63
Table 24. BIOS Setup, Processor Configuration Sub-menu Options .........................................63
Table 25. BIOS Setup IDE Configuration Menu Options ............................................................ 65
Table 26. Mixed PATA-SATA Configuration with only Primary PATA ........................................ 66
Table 27. BIOS Setup, IDE Device Configuration Sub-menu Selections ................................... 67
Table 28. BIOS Setup, Floppy Configuration Sub-menu Selections........................................... 68
Table 29. BIOS Setup, Super I/O Configuration Sub-menu........................................................ 69
Table 30. BIOS Setup, USB Configuration Sub-menu Selections .............................................. 69
Table 31. BIOS Setup, USB Mass Storage Device Configuration Sub-menu Selections........... 70
Table 32. BIOS Setup, PCI Configuration Sub-menu Selections ...............................................71
Table 33. BIOS Setup, Memory Configuration Sub-menu Selections......................................... 72
Table 34. BIOS Setup, Boot Menu Selections ............................................................................ 73
Table 35. BIOS Setup, Boot Settings Configuration Sub-menu Selections ................................ 73
Table 36. BIOS Setup, Boot Device Priority Sub-menu Selections ............................................ 74
Table 37. BIOS Setup, Hard Disk Drive Sub-Menu Selections................................................... 74
Table 38. BIOS Setup, Removable Drives Sub-menu Selections............................................... 74
Table 39. BIOS Setup, CD/DVD Drives Sub-menu Selections................................................... 75
Table 40. BIOS Setup, Security Menu Options........................................................................... 75
Table 41. BIOS Setup, Server Menu Selections.........................................................................76
Table 42. BIOS Setup, System Management Sub-menu Selections.......................................... 78
Table 43. BIOS Setup, Serial Console Features Sub-menu Selections ..................................... 79
Table 44. BIOS Setup, Event Log Configuration Sub-menu Selections ..................................... 80
Table 45. BIOS Setup, Exit Menu Selections .............................................................................81
Table 46. Supported Wake Events .............................................................................................92
Table 47. Security Features Operating Model ............................................................................93
Table 48. Supported Channel Assigments ............................................................................... 103
Table 49. LAN Channel Capacity..............................................................................................105
Table 50. LAN Channel Specifications .....................................................................................106
Table 51. PEF Action Priorities .................................................................................................110
Table 52. mBMC Factory Default Event Filters......................................................................... 110
Table 53. Power Control Initiators.............................................................................................114
Table 54. System Reset Sources and Actions..........................................................................115
Table 55. Chassis ID LEDs.......................................................................................................118
Table 56. Fault/Status LED....................................................................................................... 118
Table 57. mBMC Built-in Sensors.............................................................................................122

Intel® Server Boards SE7320SP2 and SE7525GP2 Contents
Revision 4.0
xi
Table 58. Built-in Platform Sensors ..........................................................................................122
Table 59. External Platform Sensors ........................................................................................123
Table 60. POST Error Messages and Handling........................................................................ 129
Table 61. Boot Block Error Beep Codes ................................................................................... 132
Table 62. POST Error Beep Codes ..........................................................................................132
Table 63. Troubleshooting BIOS Beep Codes..........................................................................132
Table 64. POST Progress Code LED Example ........................................................................ 134
Table 65. POST Code Checkpoints..........................................................................................135
Table 66. Bootblock Initialization Code Checkpoints ................................................................137
Table 67. Bootblock Recovery Code Checkpoint .....................................................................138
Table 68. DIM Code Checkpoints ............................................................................................. 139
Table 69. ACPI Runtime Checkpoints ......................................................................................139
Table 70. Memory Error Codes................................................................................................. 140
Table 71. Power Connector Pin-out (J12).................................................................................141
Table 72. Auxiliary Signal Connector (J5).................................................................................141
Table 73. Auxiliary CPU Power Connector Pin-out (J22) .........................................................142
Table 74. DIMM Connectors (J16,J18,J20,J21) ....................................................................... 142
Table 75. Socket 604 Processor Socket Pin-out (J36, J37) .....................................................143
Table 76. HSBP Header Pin-out (J54)......................................................................................146
Table 77. HSBP Header Pin-out (J30)......................................................................................146
Table 78. Remote Management Card Header Pin-out (J33) .................................................... 147
Table 79. P32-A 5V 32-bit/33-MHz PCI Slot Pin-out (J10, J11) ...............................................147
Table 80. P64-B 3.3V 64-bit/66-MHz PCI-X Slot Pin-out (J8, J9)............................................. 148
Table 81. PCI Express* Slot Pin-out (J13 for x4, J14 for x16) .................................................. 149
Table 82. Front Panel 34-Pin Header Pin-out (J38).................................................................. 151
Table 83. VGA Connector Pin-out (J4) .....................................................................................152
Table 84. NIC1 82541GI(10/100/1000) Connector Pin-out (JA1) ............................................. 152
Table 85. ATA 40-pin Connector Pin-out (J41, J43) ................................................................. 153
Table 86. SATA Connector Pin-out (J28, J32).......................................................................... 153
Table 87. USB Connectors Pin-out (J3)....................................................................................154
Table 88. Optional USB Connection Header Pin-out (J31)....................................................... 154
Table 89. Legacy 34-pin Floppy Connector Pin-out (J47) ........................................................ 155
Table 90. External DB9 Serial A Port Pin-out (J8A1)................................................................ 156
Table 91. 9-pin Header Serial B Port Pin-out (J15) .................................................................. 156
Table 92. Keyboard and Mouse PS/2 Connectors Pin-out (J2) ................................................ 157

Contents Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
xii
Table 93. Three-pin Fan Headers Pin-out (J51, J52, J7, J1, J45, J48) ....................................157
Table 94. Six-pin Fan headers Pin-out (J44, J46) ....................................................................158
Table 95. Intrusion Cable Connector (J19) Pin-out...................................................................158
Table 96. SCSI LED Header Pin-out (J26) ...............................................................................158
Table 97. Configuration Jumper Options ..................................................................................159
Table 98. BIOS Bank Jumper Option........................................................................................160
Table 99. Absolute Maximum Ratings ...................................................................................... 161
Table 100. MTBF Calculation ...................................................................................................161
Table 101. Intel®Xeon®Processor DP TDP Guidelines ........................................................... 162
Table 102. Power Supply Voltage Specification .......................................................................162
Table 103. Voltage Timing Parameters ....................................................................................163
Table 104. Turn On / Off Timing ...............................................................................................164
Table 105. Transient Load Requirements.................................................................................166

Intel® Server Boards SE7320SP2 and SE7525GP2 Introduction
Revision 4.0
1
1. Introduction
This Technical Product Specification (TPS) provides detail to the architecture and feature set of
the Intel®Server Board SE7320SP2 and the Intel®Server Board SE7525GP2. Unless otherwise
noted, features discussed in this document apply to both server boards.
The target audience for this document is anyone wishing to obtain more in depth detail of the
server board than what is generally made available in the board’s Users Guide. It is a technical
document meant to assist people with understanding and learning more about the specific
features of the board.
1.1 Chapter Outline
This document is divided into the following chapters
Chapter 1: Introduction
Chapter 2: Server Board Overview
Chapter 3: Functional Architecture
Chapter 4: System BIOS
Chapter 5: Platform Management
Chapter 6: Error Reporting and Handling
Chapter 7: Connector Definitions and Pin-outs
Chapter 8: General Specifications
Chapter 9: Product Regulatory Compliance
1.2 Server Board Use Disclaimer
Intel Corporation server boards contain a number of high-density VLSI and power delivery
components which need adequate airflow to cool. Intel ensures through its own chassis
development and testing that when Intel server building blocks are used together, the fully
integrated system will meet the intended thermal requirements of these components. It is the
responsibility of the system integrator who chooses not to use Intel developed server building
blocks to consult vendor datasheets and operating parameters to determine the amount of air
flow required for their specific application and environmental conditions. Intel Corporation can
not be held responsible, if components fail or the server board does not operate correctly when
used outside any of their published operating or non-operating limits.

Server Board Overview Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
2
2. Server Board Overview
The Intel®Server Boards SE7320SP2 and SE7525GP2 are monolithic printed circuit boards
with features that were designed to support the entry-level server market. The Server Board
SE7525GP2 has features that also make it suitable for the workstation market. The features of
both boards will be discussed in detail in this document. Unless otherwise noted, features
discussed in this document apply to both server boards.
2.1 Intel®Server Board SE7320SP2
One SKU of the Intel®Server Board SE7320SP2 is available. This product is based on the Intel®
E7320 chipset and provides an interface to a single PCI Express* bus, one 32-bit / 33-MHz PCI
bus and one 64-bit / 66-MHz PCI-X* bus. Additionally, integrated on the board is a gigabit NIC
and an ATI* Rage XL video solution. A detailed list of the features is listed below.
2.1.1 Intel®Server Board SE7320SP2 Feature Set
Dual processor slots supporting Intel®Xeon®processors operating at 800MT/s system bus
Intel®E7320 chipset (MCH, 6300ESB)
Four DIMM slots supporting DDR 266/333 MHz memory
Single Intel®82541 10/100/1000 Network Interface controller (NIC)
Onboard ATI* Rage XL video controller with 8 MB SDRAM
Intel®Server Management support
External I/O connectors
Stacked PS2 ports for keyboard and mouse
DB-9 Serial A Port
RJ-45 NIC connector
15-pin video connector
Two USB 2.0 ports
Internal I/O connectors / headers
Onboard USB port headers (capable of supporting two USB ports)
DH10 Serial B header
Two SATA-150 connectors with integrated chipset RAID 0/1 support
Two ATA100 connectors
Floppy connector
SSI compliant front panel headers
SSI compliant 24-pin main power connector (supports ATX 12V standard in first 20 pins)
Internal expansion connectors
One x8 PCI Express* connector (on x4 PCI Express bus)
Two 32-bit / 33-MHz PCI connectors
Two 64-bit / 66-MHz PCI-X* connectors
Intel®Light-Guided Diagnostics on some FRU devices (processors, memory)
Port 80 Diagnostic LEDs displaying POST codes

Intel® Server Boards SE7320SP2 and SE7525GP2 Server Board Overview
Revision 4.0
3
The following figure shows the board layout of the Intel®Server Board SE7320SP2.
Each connector and major component is identified by number and identified in Table 1.
Figure 1. Intel®Server Board SE7320SP2 Layout
1
1
2
3
4
5
6
7
8
8
9
10
11
12
13
14 15
1
17
1
19

Server Board Overview Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
4
Table 1. Intel®Server Board SE7320SP2 Layout Reference
Ref # Description Ref # Description
1 Processor sockets 11 Front panel header
2 DIMM connectors (from left to right 2A, 2B,
1A, 1B)
12 PATA HDD connectors (primary = blue,
secondary = white)
3 Two external USB connectors 13 Floppy connector
4 Keyboard and mouse connector 14 Main jumper block
5 Stacked video and serial 15 Serial B header
6 Main power 16 12V CPU power
7 RJ-45 gigabit NIC connector 17 Post Code LEDs
8 32-bit PCI slots 18 SATA connectors (left to right A2, A1)
9 PCI Express* x8 connector (x4 bus) 19 Front panel USB header
10 PCI-X* 64-bit 66 MHz
2.2 Intel®Server Board SE7525GP2
One SKU of the Server Board SE7525GP2 is available. This section describes its feature set.
While similar to the Server Board SE7320SP2, there are specific features that make this server
board suitable for an entry-level workstation solution as well as an entry-server environment.
2.2.1 Intel®Server Board SE7525GP2 Feature Set
Dual processor slots supporting Intel®Xeon®processors operating on the 800MT/s
system bus
Intel®E7525 chipset (MCH, ICH5R)
Four DIMM slots supporting DDR-266/333 MHz memory
One Intel®82541 10/100/1000 Network Interface controller (NIC)
Onboard ATI* Rage XL video controller with 8-MB SDRAM
Intel®Server Management support
External I/O connectors
Stacked PS2 ports for keyboard and mouse
DB-9 Serial A port
RJ-45 NIC connector
15-pin video connector
Two USB 2.0 ports
Internal I/O connectors / headers
Onboard USB port headers (capable of supporting two USB ports)
DH10 Serial B header
Two SATA-150 connectors with integrated chipset RAID 0/1 support
Two ATA100 connectors
Floppy connector

Intel® Server Boards SE7320SP2 and SE7525GP2 Server Board Overview
Revision 4.0
5
SSI-compliant front panel headers
SSI-compliant 24-pin main power connector (will support ATX-12V standard in first 20
pins)
Internal expansion connectors
One x16 PCI Express* graphics connector
One x 8 PCI Express connector (on x4 PCI Express bus)
Two 32-bit / 33-MHz PCI connectors
Two 64-bit / 66-MHz PCI-X* connectors
Intel®Light-Guided Diagnostics on most FRU devices (processors, memory)
Port-80 diagnostic LEDs displaying POST Codes
The following figure shows the board layout of the Intel®Server Board SE7525GP2. Each
connector and major component is identified by number and identified in Table 2.

Server Board Overview Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
6
Figure 2. Intel®Server Board SE7525GP2 Layout
1
1
2
3
4
5
6
7
8
8
9
10
11
12
13
14 15
1
17
1
19
20

Intel® Server Boards SE7320SP2 and SE7525GP2 Server Board Overview
Revision 4.0
7
Table 2. Intel®Server Board SE7525GP2 Layout Reference
Ref # Description Ref # Description
1 Processor sockets 11 Front panel header
2
DIMM connectors (from left to right
2A, 2B, 1A, 1B) 12
PATA HDD connectors (primary = blue,
secondary = white)
3 Two external USB connectors 13 Floppy connector
4 Keyboard and mouse connector 14 Main jumper block
5 Stacked video and serial 15 Serial B header
6 Main power 16 12V CPU power
7 RJ-45 Gigabit NIC connector 17 Post Code LEDs
8 32-bit PCI slots 18 SATA connectors (left to right A2, A1)
9 PCI Express* x8 connector (x4 bus) 19 Front panel USB header
10 PCI-X* 64-bit / 66-MHz 20 PCI Express x16 connector

Functional Architecture Intel® Server Boards SE7320SP2 and SE7525GP2
Revision 4.0
8
3. Functional Architecture
This chapter provides a high-level description of the functionality associated with the
architectural blocks that make up the server boards.
Note: Due to the similarities between these two products, this chapter discusses all features
that are present on both products. Where appropriate, features that are specific to one product
or the other will noted.
Figure 3. Intel®Server Board SE7320SP2 Block Diagram