Intel SE7520BD2 User manual

Intel® Server Board SE7520BD2
User Guide
A Guide for Technically Qualified Assemblers of Intel®Identified
Subassemblies/Products
Order Number: C51518-004

ii
Disclaimer
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 designed, intended or
authorized for use in any medical, life saving, or life sustaining applications or for any other application in which the failure of
the Intel product could create a situation where personal injury or death may occur. Intel may make changes to
specifications and product descriptions at any time, without notice.
Intel server boards contain a number of high-density VLSI and power delivery components that need adequate airflow for
cooling. 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 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.
Intel, Intel Pentium, and Intel Xeon are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the
United States and other countries.
*Other names and brands may be claimed as the property of others.
Copyright © 2005, Intel Corporation. All Rights Reserved

Preface
Intel® Server Board SE7520BD2 iii
Preface
About this Manual
Thank you for purchasing and using the Intel® Server Board SE7520BD2.
This manual is written for system technicians who are responsible for troubleshooting, upgrading,
and repairing this server board. This document provides a brief overview of the features of the
board/chassis, a list of accessories or other components you may need, troubleshooting information,
and instructions on how to add and replace components on the Intel® Server Board SE7520BD2.
For the latest version of this manual, refer to
http://support.intel.com/support/motherboards/server/SE7520BD2/.
Manual Organization
Chapter 1 provides a brief overview of the Intel® Server Board SE7520BD2. In this chapter, you
will find a list of the server board features, photos of the product, and product diagrams to help you
identify components and their locations.
Chapter 2 provides instructions on adding and replacing components. Use this chapter for step-by-
step instructions and diagrams for installing or replacing components such as the memory,
processor, and the battery, among other components.
Chapter 3 provides instructions on using the utilities that are shipped with the board or that may be
required to update the system. This includes how to navigate through the BIOS Setup screens, how
to perform a BIOS update, and how to reset the password or CMOS. Information about the specific
BIOS settings and screens is available in the Intel® Server Board SE7520BD2 Technical Product
Specification.
Chapter 4 provides troubleshooting information. In this chapter, you will find BIOS error messages
and POST code messages. You will also find suggestions for performing troubleshooting activities
to identify the source of a problem.
Product Accessories
This server board is compatible with the following Intel® Server Chassis:
Intel® Server Chassis SC5300
Intel® Server Chassis SC5300BRP
Intel® Server Chassis SC5300LX
Intel® Server Chassis SC5275-E
You may need or want to purchase one or more of the following accessory items for your server:
Processor
Memory DIMMs
Hard drive
Floppy drive/CD-ROM drive/DVD-ROM drive
RAID controller
Operating system

Preface
iv
For information about which accessories, memory, processors, and third-party hardware have been
tested and can be used with your board, look for the Tested Hardware and Operating System List.
For ordering information for the server board, check the Spares and Configuration Guide
Document.
Additional Information and Software
If you need more information about this product or information about the accessories that can be
used with this server board, use the following resources:
For this information or software Obtain this document / software
For in-depth technical information about this
product, including BIOS settings and chipset
information
Intel® Server Board SE7520BD2 Technical Product Specification
If you just received this product and need to
install it Intel® Server Board SE7520BD2 Quick Start User’s Guide located in the product box or to obtain a newer version, follow this
url. Quick Start User’s Guide.
Accessories or other Intel server products Spares and Configuration Guide Document
Hardware (peripheral boards, adapter cards)
and operating systems that have been
tested with this product
Tested Hardware and Operating System List
Chassis that have been tested with this
product Reference Chassis List
Processors that have been tested with this
product Supported Processor List
DIMMs that have been tested with this
product Tested Memory List
To make sure your system falls within the
allowed power budget Power Budget Tool
For software to manage your Intel®Server Intel® Server Management Software
For firmware, BIOS updates, and drivers Download Finder
To obtain the documents or software mentioned in the above table and for the latest product
technical information, please go to:
http://support.intel.com/support/motherboards/server/SE7520BD2

Preface
Intel® Server Board SE7520BD2 v
Safety Information
WARNING
Before working with your server product, whether you are using this guide or any other
resource as a reference, pay close attention to the safety instructions. You must adhere to the
assembly instructions in this guide to ensure and maintain compliance with existing product
certifications and approvals. Use only the described, regulated components specified in this
guide. Use of other products / components will void the UL listing and other regulatory
approvals of the product and will most likely result in noncompliance with product
regulations in the region(s) in which the product is sold.
Emissions Disclaimer
To ensure EMC compliance with your local regional rules and regulations, the final configuration
of your end system product may require additional EMC compliance testing. For more information
please contact your local Intel Representative.
See Regulatory and Integration Information for product safety compliance and EMC regulatory
compliance information. This is an FCC Class A device. Integration of it into a Class B chassis
does not result in a Class B device.
Intended Uses
This product was evaluated as Information Technology Equipment (ITE), which may be installed in
offices, schools, computer rooms, and similar commercial type locations. The suitability of this
product for other product categories and environments (such as: medical, industrial,
telecommunications, NEBS, residential, alarm systems, test equipment, etc.), other than an ITE
application, may require further evaluation
EMC Testing
Before computer integration, make sure that the chassis, power supply, and other modules have
passed EMC testing using a server board with a microprocessor from the same family (or higher)
and operating at the same (or higher) speed as the microprocessor used on this server board.
Warnings
System power on/off: The power button DOES NOT turn off the system
AC power. To remove power from system, you must unplug the AC power
cord from the wall outlet. Make sure the AC power cord is unplugged before
you open the chassis, add, or remove any components.
Hazardous conditions, devices and cables:Hazardous electrical
conditions may be present on power, telephone, and communication cables.
Turn off the server and disconnect the power cord, telecommunications
systems, networks, and modems attached to the server before opening it.
Otherwise, personal injury or equipment damage can result.
Electrostatic discharge (ESD) and ESD protection: ESD can
damage disk drives, boards, and other parts. We recommend that you
perform all procedures in this chapter only at an ESD workstation. If one is
not available, provide some ESD protection by wearing an antistatic wrist

Preface
vi
strap attached to chassis groundany unpainted metal surfaceon your
server when handling parts.
ESD and handling boards: Always handle boards carefully. They can
be extremely sensitive to ESD. Hold boards only by their edges. After
removing a board from its protective wrapper or from the server, place the
board component side up on a grounded, static free surface. Use a
conductive foam pad if available but not the board wrapper. Do not slide
board over any surface.
Installing or removing jumpers: A jumper is a small plastic encased
conductor that slips over two jumper pins. Some jumpers have a small tab on
top that you can grip with your fingertips or with a pair of fine needle nosed
pliers. If your jumpers do not have such a tab, take care when using needle
nosed pliers to remove or install a jumper; grip the narrow sides of the
jumper with the pliers, never the wide sides. Gripping the wide sides can
damage the contacts inside the jumper, causing intermittent problems with
the function controlled by that jumper. Take care to grip with, but not
squeeze, the pliers or other tool you use to remove a jumper, or you may
bend or break the stake pins on the board.

Preface
Intel® Server Board SE7520BD2 vii
Safety Cautions
Read all caution and safety statements in this document before performing any of the instructions.
See also Intel Server Boards and Server Chassis Safety Information on the Deployment CD and/or
at http://support.intel.com/support/motherboards/server/sb/CS-010770.htm
SAFETY STEPS: Whenever you remove the chassis covers to access the inside of the
system, follow these steps:
1. Turn off all peripheral devices connected to the system.
2. Turn off the system by pressing the power button.
3. Unplug all AC power cords from the system or from wall outlets.
4. Label and disconnect all cables connected to I/O connectors or ports on the back of
the system.
5. Provide some electrostatic discharge (ESD) protection by wearing an antistatic wrist
strap attached to chassis ground of the system—any unpainted metal surface—
when handling components.
6. Do not operate the system with the chassis covers removed.
A microprocessor and heat sink may be hot if the system has been running. Also, there may
be sharp pins and edges on some board and chassis parts. Contact should be made with
care. Consider wearing protective gloves.
Wichtige Sicherheitshinweise
Lesen Sie zunächst sämtliche Warn- und Sicherheitshinweise in diesem Dokument, bevor Sie eine
der Anweisungen ausführen. Beachten Sie hierzu auch die Sicherheitshinweise zu Intel-
Serverplatinen und -Servergehäusen auf der Ressourcen-CD oder unter
http://support.intel.com/support/motherboards/server/sb/CS-010770.htm
SICHERHEISMASSNAHMEN: Immer wenn Sie die Gehäuseabdeckung abnehmen um an
das Systeminnere zu gelangen, sollten Sie folgende Schritte beachten:
1. Schalten Sie alle an Ihr System angeschlossenen Peripheriegeräte aus.
2. Schalten Sie das System mit dem Hauptschalter aus.
3. Ziehen Sie den Stromanschlußstecker Ihres Systems aus der Steckdose.
4. Auf der Rückseite des Systems beschriften und ziehen Sie alle Anschlußkabel von
den I/O Anschlüssen oder Ports ab.
5. Tragen Sie ein geerdetes Antistatik Gelenkband, um elektrostatische Ladungen
(ESD) über blanke Metallstellen bei der Handhabung der Komponenten zu
vermeiden.
6. Schalten Sie das System niemals ohne ordnungsgemäß montiertes Gehäuse ein.
Der Mikroprozessor und der Kühler sind möglicherweise erhitzt, wenn das System in Betrieb
ist. Außerdem können einige Platinen und Gehäuseteile scharfe Spitzen und Kanten
aufweisen. Arbeiten an Platinen und Gehäuse sollten vorsichtig ausgeführt werden. Sie
sollten Schutzhandschuhe tragen.

Preface
viii
要安全指导
在执行任何指令之前，请阅读本文档中的所有注意事项及安全声明。参见 Resource
CD（资源光盘） 和/或 http://support.intel.com/support/motherboards/server/sb/CS-010770.htm
上的
Intel Server Boards and Server Chassis Safety Information （《Intel
服务器主板与服务器机箱安全信息》）。
Consignes de sécurité
Lisez attention toutes les consignes de sécurité et les mises en garde indiquées dans ce document
avant de suivre toute instruction. Consultez Intel Server Boards and Server Chassis Safety
Information sur le CD Resource CD ou bien rendez-vous sur le site
http://support.intel.com/support/motherboards/server/sb/CS-010770.htm
CONSIGNES DE SÉCURITÉ -Lorsque vous ouvrez le boîtier pour accéder à l’intérieur du
système, suivez les consignes suivantes:
1. Mettez hors tension tous les périphériques connectés au système.
2. Mettez le système hors tension en mettant l’interrupteur général en position OFF
(bouton-poussoir).
3. Débranchez tous les cordons d’alimentation c.a. du système et des prises murales.
4. Identifiez et débranchez tous les câbles reliés aux connecteurs d’E-S ou aux accès
derrière le système.
5. Pour prévenir les décharges électrostatiques lorsque vous touchez aux
composants, portez une bande antistatique pour poignet et reliez-la à la masse du
système (toute surface métallique non peinte du boîtier).
6. Ne faites pas fonctionner le système tandis que le boîtier est ouvert.
Le microprocesseur et le dissipateur de chaleur peuvent être chauds si le système a été
sous tension. Faites également attention aux broches aiguës des cartes et aux bords
tranchants du capot. Nous vous recommandons l'usage de gants de protection.

Preface
Intel® Server Board SE7520BD2 ix
Instrucciones de seguridad importantes
Lea todas las declaraciones de seguridad y precaución de este documento antes de realizar
cualquiera de las instrucciones. Vea Intel Server Boards and Server Chassis Safety Information en
el CD Resource y/o en http://support.intel.com/support/motherboards/server/sb/CS-010770.htm
INSTRUCCIONES DE SEGURIDAD: Cuando extraiga la tapa del chasis para acceder al
interior del sistema, siga las siguientes instrucciones:
1. Apague todos los dispositivos periféricos conectados al sistema.
2. Apague el sistema presionando el interruptor encendido/apagado.
3. Desconecte todos los cables de alimentación CA del sistema o de las tomas de
corriente alterna.
4. Identifique y desconecte todos los cables enchufados a los conectores E/S o a los
puertos situados en la parte posterior del sistema.
5. Cuando manipule los componentes, es importante protegerse contra la descarga
electrostática (ESD). Puede hacerlo si utiliza una muñequera antiestática sujetada
a la toma de tierra del chasis — o a cualquier tipo de superficie de metal sin pintar.
6. No ponga en marcha el sistema si se han extraído las tapas del chasis.
Si el sistema ha estado en funcionamiento, el microprocesador y el disipador de calor
pueden estar aún calientes. También conviene tener en cuenta que en el chasis o en el
tablero puede haber piezas cortantes o punzantes. Por ello, se recomienda precaución y el
uso de guantes protectores.
AVVERTENZA: Italiano
PASSI DI SICUREZZA: Qualora si rimuovano le coperture del telaio per accedere
all’interno del sistema, seguire i seguenti passi:
1. Spegnere tutti i dispositivi periferici collegati al sistema.
2. Spegnere il sistema, usando il pulsante spento/acceso dell’interruttore del sistema.
3. Togliere tutte le spine dei cavi del sistema dalle prese elettriche.
4. Identificare e sconnettere tutti i cavi attaccati ai collegamenti I/O od alle prese
installate sul retro del sistema.
5. Qualora si tocchino i componenti, proteggersi dallo scarico elettrostatico (SES),
portando un cinghia anti-statica da polso che è attaccata alla presa a terra del telaio
del sistema – qualsiasi superficie non dipinta – .
6. Non far operare il sistema quando il telaio è senza le coperture.
Se il sistema è stato a lungo in funzione, il microprocessore e il dissipatore di calore
potrebbero essere surriscaldati. Fare attenzione alla presenza di piedini appuntiti e parti
taglienti sulle schede e sul telaio. È consigliabile l'uso di guanti di protezione.

Contents
Intel® Server Board SE7520BD2 xi
Contents
1Server Board Features................................................................................... 1
Connector and Header Locations........................................................................................4
Configuration Jumpers.........................................................................................................5
Back Panel Connectors........................................................................................................6
Hardware Requirements.......................................................................................................7
2Hardware Installations and Upgrades.......................................................... 9
Before You Begin..................................................................................................................9
Tools and Supplies Needed.................................................................................................9
Installing and Removing Memory........................................................................................9
Installing DIMMs...........................................................................................................9
Removing DIMMs .......................................................................................................11
Installing or Replacing the Processor...............................................................................11
Installing the Processor.............................................................................................11
Removing a Processor ..............................................................................................14
Installing or Removing a PCI Card....................................................................................14
Replacing the Backup Battery...........................................................................................15
3Server Utilities .............................................................................................. 17
Using the BIOS Setup Utility..............................................................................................17
Starting Setup.............................................................................................................17
If You Cannot Access Setup .....................................................................................17
Setup Menus...............................................................................................................17
Upgrading the BIOS............................................................................................................18
Preparing for the Upgrade.........................................................................................19
Preparing Media and Performing the BIOS Upgrade..............................................19
Crisis Recovery Diskette...........................................................................................21
Recovering the BIOS ..........................................................................................................21
Recovering the BIOS with the Crisis Recovery Diskette........................................22
Clearing the Password .......................................................................................................24
Clearing the CMOS..............................................................................................................25
4Troubleshooting........................................................................................... 26
Resetting the System..........................................................................................................26
Problems following Initial System Installation.................................................................26
First Steps Checklist..................................................................................................26
Hardware Diagnostic Testing.............................................................................................27
Confirming Loading of the Operating System.........................................................28
Specific Problems and Corrective Actions.......................................................................28
Power Light Does Not Light......................................................................................28
No Characters Appear on Screen.............................................................................29
Characters Are Distorted or Incorrect......................................................................30
System Cooling Fans Do Not Rotate Properly........................................................30
Diskette Drive Activity Light Does Not Light...........................................................30

Contents
xii
CD-ROM Drive or DVD-ROM Drive Activity Light Does Not Light .........................31
Cannot Connect to a Server......................................................................................31
Problems with Network..............................................................................................31
System Boots when Installing PCI Card..................................................................32
Problems with Newly Installed Application Software.............................................32
Problems with Application Software that Ran Correctly Earlier............................32
Devices are not Recognized under Device Manager (Windows* Operating
System).........................................................................................................33
Hard Drive(s) Are Not Recognized............................................................................33
Bootable CD-ROM Is Not Detected...........................................................................33
LED Information .........................................................................................................33
BIOS POST Beep Codes............................................................................................34
Boot Block Error Beep Codes...................................................................................34
POST Error Beep Codes............................................................................................35
Regulatory and Compliance Information........................................................ 37
Product Regulatory Compliance .......................................................................................37
Product Safety Compliance.......................................................................................37
Product EMC Compliance – Class A Compliance...................................................37
Certifications/Registrations/Declarations................................................................38
Product Regulatory Compliance Markings..............................................................38
Electromagnetic Compatibility Notices ............................................................................39
FCC (USA)...................................................................................................................39
Industry Canada (ICES-003)......................................................................................39
Europe (CE Declaration of Conformity) ...................................................................40
Taiwan Declaration of Conformity (BSMI)................................................................40
Korean Compliance (RRL).........................................................................................40
Getting Help....................................................................................................... 41
Intel® Server Issue Report Form ..................................................................... 43

Contents
Intel® Server Board SE7520BD2 xiii
Figures
Figure 1. Intel®Server Board SE7520BD2 .................................................................................2
Figure 2. Intel® Server Board SE7520BD2 Connector and Header Locations............................4
Figure 3. Configuration Jumper Location.....................................................................................5
Figure 4. Back Panel Connectors................................................................................................6
Figure 5. Installing Memory........................................................................................................10
Figure 6. Opening Socket Lever................................................................................................11
Figure 7. Inserting Processor.....................................................................................................12
Figure 8. Closing Socket Lever..................................................................................................12
Figure 9. Installing the Heat Sink...............................................................................................13
Figure 10. Replacing the Backup Battery ..................................................................................16
Figure 11. Recovery Boot Jumper.............................................................................................23
Figure 12. Password Clear Jumper ...........................................................................................24
Figure 13. Clear CMOS Jumper ................................................................................................25
Tables
Table 1. Server Board Features...................................................................................................2
Table 2. Configuration Jumpers...................................................................................................5
Table 3. NIC LEDs.......................................................................................................................6
Table 4. Keyboard Commands..................................................................................................18
Table 5. Boot Block error Beep Codes ......................................................................................34
Table 6. POST Error Beep Codes .............................................................................................35
Table 7. Troubleshooting BIOS Beep Codes.............................................................................35
Table 8. Product Certification Markings.....................................................................................38

Server Board Features
Intel® Server Board SE7520BD2 1
1Server Board Features
This chapter briefly describes the main features of the Intel®Server Board SE7520BD2, as well as
provides a photograph of the product, a list of the server board features, and diagrams showing the
location of important components and connections on the server board.
There are three SKUs available for the Intel® Server Board SE7520BD2.
Product Code PCI SCSI SATA Ethernet Intel® Light-
Guided
Diagnostics
USB
Connections
Intel® Server
Board
SE7520BD2
SCSI
1 - PCI Express* x8
1 - PCI Express* x4
1 - PCI-X* 133MHz
2 - PCI-X* 100MHz
1 - PCI 32-bit /
33MHz 5V
Two Ultra-
320/LVD
channels via
the LSI*
53C1030
SCSI
controller
Dual serial ATA
channels with
support for RAID 0
and 1.
One IDE connector
supporting two
ATA/100 IDE
channels.
Dual Gig Yes 5 (3 at rear of
board, 2 in
front)
Intel® Server
Board
SE7520BD2-V
1 - PCI Express* x4
1 - PCI-X* 133MHz
2 - PCI-X* 100MHz
1 - PCI 32-bit /
33MHz 5V
One Ultra-
320/LVD
channel via
either the
LSI*
53C1020 or
LSI*
53C1020A
SCSI
controller
Dual serial ATA
channels with
support for RAID 0
and 1.
One IDE connector
supporting two
ATA/100 IDE
channels.
Dual Gig No 4 (2 at rear of
board, 2 in
front)
Intel® Server
Board
SE7520BD2
1 - PCI Express* x8
1 - PCI Express* x4
1 - PCI-X* 133MHz
2 - PCI-X* 100MHz
1 - PCI 32-bit /
33MHz 5V
NA Dual serial ATA
channels with
support for RAID 0
and 1.
One IDE connector
supporting two
ATA/100 IDE
channels.
Dual Gig Yes 5 (3 at rear of
board, 2 in
front)

Server Board Features
2
Figure 1. Intel®Server Board SE7520BD2
Table 1 summarizes the major features of the server board.
Table 1. Server Board Features
Feature Description
Processors Up to two Intel® Xeon™processors with an FC-mPGA4 using Socket 604, and
an 800-MHz Front Side Bus (FSB)
Memory DDR-266/333 MHz compliant registered ECC DIMMs
DIMM sockets: six 72-bit, 184-pin, gold contact
Supported DIMM sizes: 256 MB, 512 MB, 1 GB, 2 GB, 4 GB
Up tp 24 GB memory capcity using DDR-266 (when 4 GB DIMMs are
available)
Dual channel architecture
Memory Mirroring
Memory Sparing
Chipset Intel® E7520 chipset:
Supports 800 MHz Front Side Bus (FSB)
Intel® E7520 Memory Controller Hub (MCH)
Intel® 6700PXH 64-bit PCI Hub
Intel® 82801ER I/O Controller Hub5 (ICH-5R)
I/O Control Super I/O controller chip that provides:
Two stacked and interchangeable PS/2 compatible keyboard/mouse ports
Three rear external USB 2.0 ports (two rear USB Ports on SE7520BD2-V
SKU)
USB header providing option for additional two USB ports for front panel
support
One external serial port on the rear I/O port area (Serial A)
One serial port header to provide a second, optional serial port (Serial B)
One IDE connector supporting up to two ATA-100 compatible devices
One standard floppy drive interface
Video Integrated on-board ATI Rage* XL SVGA video controller.

Server Board Features
Intel® Server Board SE7520BD2 3
Feature Description
8 MB SDRAM video memory
SVGA video port
Hard Disk Drive Two serial ATA 150 ports
Support for entry-level RAID functionality (LSI* Logic integrated mirroring and
integrated striping)
LAN Dual integrated 10/100/1000 MB on-board Ethernet connectors
-One Marvell* 88E8050 10/100/1000 LAN
-One Intel® 82541PI 10/100/1000 LAN
Expansion Slots Six full-length, full-height PCI expansion slots.
Slot 1 and Slot 2: PCI-X* 64-bit/100 MHz
Slot 3: PCI 32-bit/33MHz
Slot 4: PCI Express* x8 with x4 speeds
Slot 5: PCI Express* x8 (not on SE7520BD2-V SKU)
Slot 6: PCI-X* 64-bit/133-MHz
Fans Six multi-speed system fan headers.
Two single-speed CPU fan headers.
Server Management National Semiconductor* PC87431M controller to provide monitoring, alerting
and logging of critical sensor information.
Intel® Light-Guided Diagnostics on critical FRU devices, such as processors,
memory, and power (not on SE7520BD2-V SKU)
Custom front panel LCD connectors for use with the Intel® Front Panel LCP.
Flexible management controller to support Intel® Professional or Advanced
Management Modules
Form Factor SSI-EEB3.5 compliant form factor
Board size 12 inches by 13 inches

Server Board Features
4
Connector and Header Locations
A Chassis Intrusion P CPU Power Connector GG SATA A1
B1 Leftside – PCI-X* 100 Slot Q DIMM Sockets HH HSBP B
B2 Rightside – PCI-X* 100 Slot (MROMB) R CPU 1 Fan Header II Front Panel Connector
C Super I/O S CPU 1 JJ SCSI Channel A
D PCI Slot 32/33 T CPU 2 KK System Fan 1 (3 pin)
E ATI* Rage XL Graphics Controller U Intel® Management
Module Connector LL System Fan 3 (6 pin)
F1 Leftside – x8 (x4speed) PCI-Express*
Slot V IDE Connector MM System Fan 4 (6 pin)
F2 Rightside – x8 PCI-Express* Slot W Floppy Connector NN OEM RMC
G Intel 82541P1 (10/100/1000) X System Fan 2 (3 pin) OO ICH5R
H PCI-X* 133 Slot Y System Fan 2 (2 pin) PP SCSI Channel B
I Battery Z System Fan 1 (2 pin) QQ LSI* 53C1030 SCSI
Controller
J ICMB Connector AA HSBP A RR CPU 2 Fan Header
K System Fan 5 BB Front Panel USB SS MCH
L System Fan 6 CC Front Panel LCP TT PHX
M System I/O Connectors DD IPMB UU Serial B Header
N Auxiliary Power Connector EE SATA A2
O Main Power Connector FF Speaker
Note: F2, NN and PP are not populated on the Intel® Server Board SE7520BD2-V.
QQ is not populated on the Intel® Server Board SE7520BD2.
Figure 2. Intel® Server Board SE7520BD2 Connector and Header Locations

Server Board Features
Intel® Server Board SE7520BD2 5
Configuration Jumpers
TP00723
3
FRB
HALT
J4H2
RECOVERY
BOOT
J4H3
J4H1
3
CMOS
CLR
J2H1
3
BIOS
SEL
J1B1
Normal
Bank 0
PASSWORD
CLEAR
Figure 3. Configuration Jumper Location
Table 2. Configuration Jumpers
Jumper Name Pins What happens at system reset…
1-2 BMC Control: These pins should be jumpered for normal operation.CMOS Clear
(J2H1) 2-3 Force Erase: If these pins are jumpered, the CMOS settings will be cleared on the next
reset. These pins should not be jumpered for normal operation.
OFF Protect: These pins should not be jumpered for normal operation.Password Clear
(J4H3) ON Erase: If these pins are jumpered, administrator and user passwords will be cleared on
the next reset. These pins should not be jumpered for normal operation.
OFF Normal Boot: These pins should not be jumpered for normal operationBIOS Recovery
(J4H1) ON Recovery Boot: If these pins are jumpered, the system will attempt to recover the
BIOS by loading the BIOS code into the flash device from a floppy disk. This jumper is
typically used when the BIOS has become corrupted. These pins should not be
jumpered for normal operation.

Server Board Features
6
Back Panel Connectors
TP00719
H
F
AD
G IB C E
A USB1 D Mouse G Video
B USB2 E Keyboard H NIC1 (MGMT)
C USB3* F Serial A I NIC2
* USB3 not available on Intel® Server Board SE7520BDV
Figure 4. Back Panel Connectors
The NIC LEDs at the right and left of the NICs provide the following information. (Refer to the
Intel® Server Board SE7520BD2 Technical Product Specification for POST code errors.)
Table 3. NIC LEDs
LED Color LED State Description
Off No network connection is in place
Solid Green Network connection is in place
Left LED Blinking Green Transmit/receive activity
Off 10 Mbps connection (if left LED is on or blinking)
Solid Green 100 Mbps connection
Right LED Solid Amber 1000 Mbps connection