Intel P4304XXMFEN2 User manual

Intel® Server Chassis
P4304XXMFEN2/P4304XXMUXX Product Family
System Integration and Service Guide
A Guide for Technically Qualified Assemblers of Intel identified Subassemblies/Products
Revision 1.3
May 2017

Intel®Server Chassis P4304XXMFEN2/P4304XXMUXX Product Family System Integration and Service Guide
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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, lifesaving, or life sustaining
applications. Intel may make changes to specifications and product descriptions at any time, without notice.
A "Mission Critical Application" is any application in which failure of the Intel Product could result, directly or indirectly, in personal
injury or death. SHOULD YOU PURCHASE OR USE INTEL'S PRODUCTS FOR ANY SUCH MISSION CRITICAL APPLICATION, YOU
SHALL INDEMNIFY AND HOLD INTEL AND ITS SUBSIDIARIES, SUBCONTRACTORS AND AFFILIATES, AND THE DIRECTORS,
OFFICERS, AND EMPLOYEES OF EACH, HARMLESS AGAINST ALL CLAIMS COSTS, DAMAGES, AND EXPENSES AND REASONABLE
ATTORNEYS' FEES ARISING OUT OF, DIRECTLY OR INDIRECTLY, ANY CLAIM OF PRODUCT LIABILITY, PERSONAL INJURY, OR DEATH
ARISING IN ANY WAY OUT OF SUCH MISSION CRITICAL APPLICATION, WHETHER OR NOT INTEL OR ITS SUBCONTRACTOR WAS
NEGLIGENT IN THE DESIGN, MANUFACTURE, OR WARNING OF THE INTEL PRODUCT OR ANY OF ITS PARTS.
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 board or system may include issues known as product errata which may cause it to deviate from published specifications. All
known product errata will be published in the given product’s Monthly Specification Update which can be downloaded from the
following Intel website http://www.intel.com/support
This document and the software described in it are 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
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Intel and Xeon are trademarks or registered trademarks of Intel Corporation.
* Other names and brands may be claimed as the property of others.
Copyright © 2016 Intel Corporation. All Rights Reserved.

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Safety Information
Important Safety Instructions
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 at
http://www.intel.com/support/motherboards/server/sb/cs-010770.htm.
Wichtige Sicherheitshinweise
Lesen Sie zunächst sämtliche Warnund Sicherheitshinweise in diesem Dokument, bevor Sie eine der
Anweisungen ausführen. Beachten Sie hierzu auch die Sicherheitshinweise zu Intel-Serverplatinen und
Servergehäusen auf der
http://www.intel.com/support/motherboards/server/sb/cs-010770.htm.
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 site
http://www.intel.com/support/motherboards/server/sb/cs-010770.htm.
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
http://www.intel.com/support/motherboards/server/sb/cs-010770.htm.
Error! Hyperlink reference not valid.
重要安全指导
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。和/或
http://www.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》）。

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Warnings
Heed safety instructions: 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.
System power on/off: The power button DOES NOT turn off the system AC power. To remove power
from the 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 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 pins on the board.

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Preface
About this document
This document is written for system integrators and service technicians who are responsible for system
assembly, server upgrades, server repair, and component replacement.
This document is divided into two major sections. The first half of the document provides detailed
instructions on how to assemble a system from the bare chassis to a functional server. It will guide you
through the installation of system components and available accessories. The second half of the
document is focused on system service. It provides many reference diagrams use to identify all key
physical features of the system. It also provides detailed instructions for the replacement of field
replaceable components.
For the latest revision of this document, go to http://www.intel.com/support.
Document Organization
System Integration
Chapter 1 – Server Building Block System Integration –provides grounds up assembly instructions
for the integration of individual server building blocks, starting with a bare chassis and installing all
the system boards and major server components, including power supply and system fans. This
chapter can be skipped if the server board and other major components are pre-installed in the
system.
Chapter 2 – Essential System Component Integration and Service –provides instructions for adding
essential system components required to complete the integration of the server chassis. This
includes installation of Processors, Memory, Add-in Cards, and hot-swap storage devices.
Chapter 3 – Options and Accessory Kit Integration and Service –provides instructions for adding
and removing various system options and available accessory option kits that may be installed in the
system.
Chapter 4 – System Software Update and Configuration – provides instructions for completing the
integration of the server chassis by updating the system software and navigating through the BIOS
Setup screens.
System Service
Chapter 5 – System Features Overview – provides a high level overview of the Intel® Server Board
S2600CW and Intel® Server Chassis P4304XXMFEN2/P4304XXMUXX product family. In this chapter,
you will find a list of the server chassis features and illustrations identifying the major system
components.
The back of this manual provides "getting help" information, LED Decoder, and POST Code Errors.

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Additional Information and Software
For additional information about this family of products or any of their supported accessories, refer to
the following resources available at http://www.intel.com/support.
Table 1. Server Chassis References
For this information or software Use this Document or Software
For in-depth technical information about this product.
Intel® Server Board S2600CW Technical Product Specification
For a list of available systems within the product family and
supported Intel spares and accessories
Intel® Server Board S2600CW Product Family Spares and
Accessories List and Configuration Guide
For server configuration guidance and compatibility
Intel® Server Configurator tool
http://serverconfigurator.intel.com
For system power budget guidance Intel® Server Board S2600CW Product Family Power Budget
Tool
For system firmware updates and onboard device drivers
and software to manage your Intel®Server Chassis. http://downloadcenter.intel.com
Product Safety and Regulatory Information
Intel Server Products - Product Safety and Regulatory
Compliance Document

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Table of Contents
1. Server Building Block System Integration............................................................................................................. 1
1.1 Intel® Server Chassis Identification............................................................................................................................2
1.2 Server Building Block Installation ..............................................................................................................................3
1.2.1 Removing the Chassis Side Cover..............................................................................................................................3
1.2.2 Installing the IO Shield....................................................................................................................................................3
1.2.3 Installing the Chassis Stand-off ..................................................................................................................................3
1.2.4 Server Board Installation ...............................................................................................................................................5
1.2.5 750W Power Supply Installation (Optional) ..........................................................................................................6
1.2.6 1600W Power Supply Installation (Optional) .......................................................................................................6
1.3 Cable Routing and Connection....................................................................................................................................9
1.3.1 Routing the Cables ...........................................................................................................................................................9
1.3.2 Connecting the Power Cables to the Server Board ......................................................................................... 11
1.3.3 Connecting the System Fan Cables to the Server Board .............................................................................. 12
1.3.4 Connecting the Cables to the Front Panel...........................................................................................................13
2. Essential System Component Installation and Service ....................................................................................14
2.1 Internal Cable Routing ................................................................................................................................................. 15
2.2 Chassis Side Cover Removal / Installation ..........................................................................................................17
2.2.1 Chassis Side Cover Removal ..................................................................................................................................... 17
2.2.2 Chassis Side Cover Installation ................................................................................................................................18
2.3 Air Duct Removal / Installation................................................................................................................................. 19
2.3.1 Air Duct Installation....................................................................................................................................................... 19
2.3.2 Air Duct Removal............................................................................................................................................................ 19
2.4 System Fan Assembly Removal / Installation....................................................................................................20
2.4.1 System Fan Assembly Removal ...............................................................................................................................20
2.4.2 System Fan Assembly Installation ..........................................................................................................................22
2.5 Processor Installation / Removal.............................................................................................................................24
2.5.1 Processor Heatsink(s) Removal................................................................................................................................24
2.5.2 Processor Installation................................................................................................................................................... 25
2.5.3 Processor Heatsink Installation................................................................................................................................28
2.5.4 Removing the Processor ............................................................................................................................................. 28
2.6 Memory Installation and Removal ..........................................................................................................................29
2.6.1 Memory Slot Population Requirements ...............................................................................................................29
2.6.2 Memory Installation ...................................................................................................................................................... 29
2.6.3 Removing Memory......................................................................................................................................................... 30
2.7Storage Device Installation/Upgrade.....................................................................................................................31
2.7.1 Removing the Front Bezel .......................................................................................................................................... 33
2.7.2 Installing the Front Bezel............................................................................................................................................ 34
2.7.3 Converting the Pedestal Chassis to Rack Mount Chassis.............................................................................. 34

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2.7.4 Installing the Fixed Drive Storage ...........................................................................................................................39
2.7.5 Upgrading the Fixed Drive Storage to 4x3.5” or 8x2.5” Hot-swap Drive Bay Storage ...................... 43
2.7.6 Upgrading the Fixed Drive Storage to 8x2.5” PCIe SSD (NVMe) Combo Drive Bay Storage .......... 46
2.7.7 Upgrading the Fixed Drive Storage to 8x3.5” Hot-swap Drive Bay Storage.......................................... 50
2.7.8 Upgrading the Fixed Drive Storage to 16x2.5” Hot-swap Drive Bay Storage ....................................... 52
2.7.9 4 x 3.5” Front Drive Bay Storage..............................................................................................................................54
2.7.10 8 x 2.5” Front Drive Bay Storage..............................................................................................................................57
3. Option and Accessory Kit Integration and Service ............................................................................................59
3.1 Optical Drive – Installation and Removal .............................................................................................................60
3.1.1 Optical Drive Installation............................................................................................................................................. 60
3.1.2 Optical Drive Removal.................................................................................................................................................. 61
3.2 ESRT2 RAID5 Key – Installation / Removal .........................................................................................................62
3.2.1 Installing the ESRT2 RAID 5 Key..............................................................................................................................62
3.2.2 Removing the ESRT2 RAID 5 Key ............................................................................................................................62
3.3 LSI IMR RAID5 Key – Installation / Removal........................................................................................................63
3.3.1 Installing the LSI IMR RAID 5 Key ............................................................................................................................63
3.3.2 Removing the LSI IMR RAID 5 Key ..........................................................................................................................63
3.4 Intel® RAID Smart Battery AXXRSBBU9 – Installation / Removal............................................................... 64
3.4.1 Intel® RAID Smart Battery Pre-Installation Considerations .......................................................................... 64
3.4.2 Installing the Intel® RAID Smart Battery ...............................................................................................................64
3.4.3 Connecting the Plastic Battery Holder to the Chassis.................................................................................... 66
3.4.4 Removing the Intel® RAID Smart Battery..............................................................................................................67
3.5 Intel® Remote Management Module 4 Lite Key – Installation / Removal ...............................................68
3.5.1 Intel® RMM4 Lite Key Installation ............................................................................................................................68
3.5.2 Intel® RMM4 Lite Key Removal ................................................................................................................................. 68
3.6 Trusted Platform Module (TPM) Installation ......................................................................................................69
3.7 M.2 Installation................................................................................................................................................................69
4. System Software Updates and Configuration.....................................................................................................70
4.1 Updating the System Software Stack....................................................................................................................70
4.2 Using the BIOS Setup Utility...................................................................................................................................... 70
4.2.1 Entering BIOS Setup ..................................................................................................................................................... 70
4.2.2 No Access to the BIOS Setup Utility.......................................................................................................................70
4.2.3 Navigating the BIOS Setup Utility............................................................................................................................71
5. System Features Overview......................................................................................................................................73
5.1 System Feature Reference Diagrams.....................................................................................................................73
5.1.1 Front Drive Bay Options .............................................................................................................................................. 74
5.1.2 Control Panel Features................................................................................................................................................ 75
5.1.3 Back Panel Features...................................................................................................................................................... 75
5.1.4 Server Board Features.................................................................................................................................................. 77
5.2 System Configuration and Recovery Jumpers ..................................................................................................80

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Appendix A: Getting Help................................................................................................................................................82
Appendix B: POST Code Diagnostic LED Decoder Table.........................................................................................83
Appendix C: POST Code Errors......................................................................................................................................89

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List of Figures
Figure 1. Intel® Server Chassis P4304XXMFEN2 – Fixed Power Supply ...............................................................................2
Figure 2. Intel® Server Chassis P4304XXMUXX – Optional Redudant Power Supplies..................................................2
Figure 3. Server Board Installation .......................................................................................................................................................5
Figure 4. Installing 750W Power Supply ............................................................................................................................................6
Figure 5. Installing 1600W Power Supply .........................................................................................................................................8
Figure 6. P4304XXMFEN2 Cable Routing..........................................................................................................................................9
Figure 7. P4304XXMUXX Cable Routing......................................................................................................................................... 10
Figure 8. Connecting Power Cables................................................................................................................................................... 11
Figure 9. Connecting System Fan Cables........................................................................................................................................ 12
Figure 10. Internal Cable Routing....................................................................................................................................................... 16
Figure 11. System Fan Assembly Removal..................................................................................................................................... 20
Figure 12. System Fan Assembly Installation ...............................................................................................................................22
Figure 13. Processor Heatsink Removal.......................................................................................................................................... 24
Figure 14. Processor Installation – Open the Socket Lever ....................................................................................................25
Figure 15. Processor Installation– Open the Load Plate ..........................................................................................................25
Figure 16. Processor Installation – Install the Processor .........................................................................................................26
Figure 17. Processor Installation – Remove the Socket Cover .............................................................................................. 26
Figure 18. Processor Installation – Close the Load Plate.........................................................................................................27
Figure 19. Processor Installation – Latch the Locking Lever...................................................................................................27
Figure 20. Processor Heatsink Installation..................................................................................................................................... 28
Figure 21. Installing Memory................................................................................................................................................................29
Figure 22. Removing Memory.............................................................................................................................................................. 30
Figure 23. Installing Hot-swap Storage Devices – 3.5” Carrier Extraction......................................................................... 54
Figure 24. 3.5” Hard Disk Drive Installation – Removing the Drive Blank.......................................................................... 54
Figure 25. 3.5” Hard Disk Drive Installation – Mounting the Drive to the Carrier...........................................................55
Figure 26. Option to Install a 2.5” SSD into a 3.5” Carrier........................................................................................................55
Figure 27. Hard Disk Drive Installation – Inserting the 3.5” HDD Assembly..................................................................... 56
Figure 28. Installing Hot-swap Storage Devices – 2.5” Carrier Extraction......................................................................... 57
Figure 29. 2.5” Storage Device Installation – Removing the Drive Blank........................................................................... 57
Figure 30. 2.5” Storage Device Installation – Mounting the Drive to the Carrier............................................................ 58
Figure 31. 2.5” Storage Device Installation – Inserting the 2.5” Drive Assembly ........................................................... 58
Figure 32. Removing the EMI Shield ................................................................................................................................................. 60
Figure 33. Installing the Optical Drive .............................................................................................................................................. 60
Figure 34. Removing the Optical Drive ............................................................................................................................................ 61
Figure 35. Re-inserting the Empty EMI Shield ..............................................................................................................................61
Figure 36. ESRT2 RAID 5 Key Location ............................................................................................................................................ 62
Figure 37. IMR RAID 5 Key Location .................................................................................................................................................. 63
Figure 38. BBU Unit Connection to the RAID card ......................................................................................................................64

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Figure 39. Installing the RAID Card again........................................................................................................................................ 65
Figure 40. Align the tabs with battery holder................................................................................................................................66
Figure 41. Slide the battery holder.................................................................................................................................................... 67
Figure 42. Installing the Intel®RMM4 Lite ....................................................................................................................................... 68
Figure 43. Intel® Server Chassis P4304XXMFEN2 Features Overview................................................................................ 73
Figure 44. Intel® Server Chassis P4304XXMUXX Features Overview ................................................................................. 74
Figure 45. No Front Drive Bay Configuration – Chassis-only Building Block ................................................................... 74
Figure 46. P4304XXMFEN2/P4304XXMUXX Front Panel .......................................................................................................75
Figure 47. P4304XXMFEN2 Back Panel........................................................................................................................................... 75
Figure 48. P4304XXMUXX Back Panel............................................................................................................................................. 76
Figure 49. Server Board Feature Identification.............................................................................................................................77
Figure 50. Intel® Light-Guided Diagnostic LEDs – Server Board............................................................................................ 78
Figure 51. DIMM Fault LEDs..................................................................................................................................................................79
Figure 52. System Configuration and Recovery Jumpers........................................................................................................80
Figure 53. POST Diagnostic LED Location...................................................................................................................................... 83

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List of Tables
Table 1. Server Chassis References..................................................................................................................................................... vi
Table 2. BIOS Setup: Keyboard Command Bar ............................................................................................................................71
Table 3. POST Progress Code LED Example.................................................................................................................................. 84
Table 4. MRC Progress Codes.............................................................................................................................................................. 84
Table 5. MRC Fatal Error Codes .......................................................................................................................................................... 85
Table 6. POST Progress Codes............................................................................................................................................................ 86
Table 7. POST Error Codes and Messages ..................................................................................................................................... 89
Table 8. POST Error Beep Codes........................................................................................................................................................ 94
Table 9. Integrated BMC Beep Codes............................................................................................................................................... 95

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1. Server Building Block System Integration
Purpose
This chapter provides instructions for the integration of the following Intel server building blocks:
Intel® Server Chassis P4304XXMFEN2 + Intel® Server Board S2600CW family
Intel® Server Chassis P4304XXMUXX + Intel® Server Board S2600CW family + Power Supply
Module
Before You Begin
Before working with your server product, observe the safety and ESD precautions found in the
Warnings section at the beginning of this manual.
Tools and Supplies Needed
•Anti-static wrist strap and conductive foam pad (recommended)
•Phillips* (cross head) screwdriver (#2 bit)
System Reference
All references to left, right, front, top, and bottom assume the reader is facing the front of the chassis.
Instruction Format
Each procedure described in this chapter will follow an illustration first format. This format will give the
reader the option to follow a quicker path to system integration by first seeing an illustration of the
intended procedure. If necessary, the reader can then follow the step-by-step instructions that will
accompany each procedure.

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1.1 Intel® Server Chassis Identification
A
Power Supply
F
Serial-B Port (Optional)
B
IO Connectors
G
Kensington* Cable Lock Mounting Hole
C
RMM4 NIC Port (Optional)
H
Padlock Loop
D
Add in PCI-e cards
I
Power Connector
E
RMM4 NIC Port (Optional)
Figure 1. Intel® Server Chassis P4304XXMFEN2 – Fixed Power Supply
A
Power Connector (filler only)
F
RMM4 NIC Port (Optional)
B
Power Connector (filler only)
G
Serial-B Port (Optional)
C
IO Connectors
H
Kensington* Cable Lock Mounting Hole
D
RMM4 NIC Port (Optional)
I
Padlock Loop
E
Add in PCI-e cards
Figure 2. Intel® Server Chassis P4304XXMUXX – Optional Redudant Power Supplies
Note:There may be only one filler present on the power supply positions (Letter A/B).

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1.2 Server Building Block Installation
1.2.1 Removing the Chassis Side Cover
Loosen the two screws located on the back edge of the chassis side cover (see letter “A”).
Slide the cover and lift it away (see letter “B”).
Take out the material from the chassis inside.
1.2.2 Installing the IO Shield
Note: The IO shield can be found in the retail board package, or can be ordered separately.
From the chassis inner side, align the IO shield to the chassis rear IO opening.
Press the IO shield firmly to the chassis rear IO opening until it clicks into place. To make the process
easier, install one end of the IO shield first and finish by pressing the other end.
1.2.3 Installing the Chassis Stand-off
Install the stand-off to the chassis mounting holes aligning to the positions on the server board.

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1.2.4 Server Board Installation
Figure 3. Server Board Installation
Note: Follow ESD precautions outlined at the beginning of this manual.
Carefully move aside any cables that may be taped to the chassis base to clear the area for server
board placement.
Remove the server board from its anti-static bag.
Attach the bumpers to the back of the server board.
Carefully lower the server board into the chassis so that the rear I/O connectors of the server board
align with and are fully seated into the matching holes on the chassis back panel.
The server board is accurately placed when rear IO connectors (NIC connectors, USB connectors, and
VGA connector) align with the IO shield openings and properly fit into it.
Fasten down the server board with nine screws using 8 in/lbs torque.

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1.2.5 750W Power Supply Installation (Optional)
Note: If the chassis model is P4304XXMFEN2, one 550W fixed power supply is already installed. If the
chassis model is P4304XXMUXX, one or two separate power supplies need to be ordered separately and
installed in the server chassis. The server chassis P4304XXMUXX supports 750W or 1600W redundant
power supplies.
Remove the power supply bay filler if necessary.
Insert the 750W power supply module into the power supply bay until it clicks and locks into place.
Figure 4. Installing 750W Power Supply
1.2.6 1600W Power Supply Installation (Optional)
Note: If the chassis model is P4304XXMFEN2, one 550W fixed power supply is already installed. If the
chassis model is P4304XXMUXX, one or two separate power supplies need to be ordered separately and
installed in the server chassis. The server chassis P4304XXMUXX supports 750W or 1600W redundant
power supplies.
Note: Before inserting the 1600W power supply into the chassis, the power distribution board kit must
be re-installed; otherwise the insertion of 1600W power supply may damange the power supply or the
power distribution board.
1. Release the two screws that secure the power distribution board kit to the chassis (see letter “A”).
2. Move the power distribution board kit from the original location (750W location) to the new
location (1600W location) (see letter “B” and “C”).
3. Secure the power distribution board kit to the chassis with the two screws (see letter “D”).
4. Remove one of the two power supply bay filler.
5. Insert the 1600W power supply module into the power supply bay until it clicks and locks into
place.

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Figure 5. Installing 1600W Power Supply