HP Integrity rx3600 Installation Manual
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HP Integrity rx3600 Installation Manual

HP Integrity rx3600 Installation Manual

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HP Integrity rx3600 Server Installation Guide
HP Part Number: AB463-9001E
Published: November 201 1
Edition: 5

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Summary of Contents for HP Integrity rx3600

  • Page 1 HP Integrity rx3600 Server Installation Guide HP Part Number: AB463-9001E Published: November 201 1 Edition: 5...
  • Page 2 Legal Notices The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

  • Page 3: Table Of Contents

    Intended Audience........................6 New and Changed Information in This Edition................6 Publishing History........................6 Document Organization......................6 Typographic Conventions......................6 Related Documents........................7 Contacting HP..........................8 Before You Contact HP......................8 HP Contact Information......................8 Subscription Service......................8 Documentation Feedback......................8 1 Installing the System..................9 Safety Information........................9 Installation Sequence and Checklist...................10 Unpacking and Inspecting the Server..................10...
  • Page 4 Core I/O Card Configuration....................49 Integrated RAID.........................50 Integrated Mirror......................50 Global Hot Spare......................50 HP 8 Internal Port SAS HBA (SAS Controller)................50 MPTUTIL Utility......................50 Flashing Firmware on First Controller................51 Flashing BIOS and EFI Driver on the First Controller............51 Common Questions About Flashing Firmware...............51...
  • Page 5 Viewing the VPD Information for EFI Driver and RISC Firmware........52 EFI Commands......................52 DRVCFG Utility......................52 Starting the DRVCFG Utility..................52 Using the DRVCFG Utility..................52 Configuration Utility Screens..................53 DRVCFG Screens......................53 CFGGEN Utility......................60 Starting CFGGEN....................60 CFGGEN Operation....................60 Rules for creating IM volumes and hot spare disks............61 CFGGEN Commands....................61 Smart Array P400, P600 and P800 Controllers..............62 Quick Installation Procedure...................62...

  • Page 6: About This Document

    April 2009 AB463-9001E November 201 1 Document Organization The HP Integrity rx3600 Server Installation Guide is divided into several sections, each containing information about installing the HP Integrity rx3600. Typographic Conventions This document uses the following conventions. %, $, or # A percent sign represents the C shell system prompt.

  • Page 7: Related Documents

    A note contains additional information to emphasize or supplement important points of the main text. Related Documents You can find other information on HP server hardware management and diagnostic support tools in the following publications. HP Technical Documentation Website http://www.hp.com/go/Integrity_Servers-docs...

  • Page 8: Contacting Hp

    In other locations, see the Contact HP worldwide (in English) webpage: http://welcome.hp.com/country/us/en/wwcontact.html. For HP technical support: In the United States, for contact options see the Contact HP United States webpage: (http:// welcome.hp.com/country/us/en/contact_us.html) To contact HP by phone: Call 1-800-HP-INVENT (1-800-474-6836). This service is available 24 hours a day, 7 ◦...

  • Page 9: Installing The System

    1 Installing the System This chapter covers the procedures for installing the HP Integrity rx3600 server. This chapter addresses the following topics “Safety Information” (page 9) “Installation Sequence and Checklist” (page 10) “Unpacking and Inspecting the Server” (page 10) “Installing Additional Components” (page 12) “Installing the Server into a Rack or Pedestal Mount”...

  • Page 10: Installation Sequence And Checklist

    If installing an internal assembly, wear an antistatic wrist strap and use a grounding mat, such as those included in the Electrically Conductive Field Service Grounding Kit (HP 9300- 1 155). Handle accessory boards and components by the edges only. Do not touch any metal-edge connectors or any electrical components on accessory boards.

  • Page 11: Inspecting The Shipping Containers For Damage

    IMPORTANT: Inspect each carton for shipping damage as you unpack the server. Checking the Inventory The sales order packing slip lists all the equipment shipped from HP. Use this packing slip to verify that all the equipment has arrived. NOTE: To identify each item by part number, see the sales order packing slip.

  • Page 12: Installing Additional Components

    This section describes how to install components into the server that are not factory integrated. Most servers are pre-configured with all components installed prior to shipping from the HP factory. If you do not have additional components to install, go on to “Installing the Server into a Rack or...

  • Page 13: Removing And Replacing The Memory Carrier Assembly Cover

    Removing and Replacing the Memory Carrier Assembly Cover This section describes how to remove and replace the memory carrier cover. Removing the Memory Carrier Assembly Cover To remove the memory carrier assembly cover, follow these steps: Unlock the cover release lever. Turn the cam 90 degrees counterclockwise. Pull up on the cover release lever to disengage the top cover and memory carrier assembly cover from the chassis (Figure...

  • Page 14: Power Supply Loading Guidelines

    Power Supply Loading Guidelines The supported configuration of the server requires a minimum of one power supply installed in either slot P0 or slot P1. You can install a second, optional hot-swappable power supply to provide 1+1 capability. The left side (viewed from the rear of the chassis) hot-swappable power supply is identified as P0, and the second hot-swappable power supply is identified as P1 (Figure CAUTION:...

  • Page 15: Removing And Replacing Hot-Swappable Disk Drive Fillers

    Figure 3 Installing a Hot-Swappable Power Supply Removing and Replacing Hot-Swappable Disk Drive Fillers There are disk drive fillers installed on the front of the server for all slots that do not contain a disk drive. IMPORTANT: For cooling purposes, always leave disk drive fillers in slots that do not contain a disk drive.

  • Page 16: Installing A Hot-Pluggable Disk Drive

    Failure to observe this caution can result in system failure. TIP: When you receive an HP Integrity rx3600 or HP Integrity rx6600 server from HP, if you ever plan to add other SAS devices into the system, you should consider moving the SAS devices so they start in bay 1 going upwards instead of Bay 8 going downwards.

  • Page 17: Installing A Pci/Pci-X/Pcie Card

    Figure 4 Installing a Hot-Pluggable Disk Drive Figure 5 Disk Drive Slot IDs Installing a PCI/PCI-X/PCIe Card Figure 6 shows the PCI/PCI-X/PCIe slot identification and card divider locations. NOTE: Slots one through eight are full-length; slots nine and ten are short-length. Installing Additional Components...

  • Page 18: Pci/Pci-X/Pcie Configurations

    Figure 6 PCI/PCI-X Slot Identification and Card Divider Locations Slot 1 Slot 5 Slot 9 Slot 2 Slot 6 Slot 10 Slot 3 Slot 7 Core I/O Board Slot Slot 4 Slot 8 PCI/PCI-X/PXIe Card Dividers PCI/PCI-X/PCIe Configurations PCI/PCI-X/PCIe slots are numbered one through ten in the server (Figure The following describes configuration requirements for slots one through ten on the PCI/PCI-X I/O backplane:...
  • Page 19 NOTE: Shared slots have card compatibility restrictions. If one of the shared slots is occupied, the card added to the second slot is limited by the configuration of the occupied slot. If the new card has a slower capability than the current bus configuration, it fails. If the new card has a faster capability than the current bus configuration, it only runs at the slower bus mode and frequency of the current bus configuration.

  • Page 20: Offline Installation Of A Pci Card

    Table 3 PCI/PCI-X Card Slot Frequency and Bus Mode Compatibility for Shared Slots Current PCI Bus Cards to be Installed Mode and PCI 33 PCI 66 PCI-X 66 PCI-X 133 PCI-X 266 Frequency for the Card in a Shared Slot PCI 33 MHz Compatible Compatible...

  • Page 21: Removing And Replacing The Memory Carrier Assembly

    (Figure NOTE: To avoid damage to the handles, HP recommends rotating the handles inward and snapping them into place when servicing the system DIMMs, or any time the carrier is out of the chassis. Before replacing the memory carrier, press the button to release the extraction handles.

  • Page 22: Replacing The Memory Carrier Assembly

    Figure 7 Removing and Replacing the Memory Carrier Assembly Replacing the Memory Carrier Assembly CAUTION: Ensure that the processor board assembly is fully seated before you replace the memory carrier assembly. The processor board assembly access door must be flush with the front bezel.

  • Page 23: Installing System Memory Dimms

    Installing System Memory DIMMs System memory or DIMMs are located on a pair of memory boards inside the memory carrier assembly. WARNING! Ensure that the system is powered off and all power sources have been disconnected from the server prior to performing this procedure. Voltages are present at various locations within the server whenever an AC power source is connected.

  • Page 24: Memory Load Order

    4 GB 8 GB Table 5 lists the supported memory configurations for the server. Table 5 Supported Memory Configurations Memory Carrier Type Memory Boards Installed Minimum Memory Maximum Memory Configuration Configuration 8-DIMM memory carrier Two 4-DIMM memory 2 GB (one pair: two 1-GB 64 GB (eight 8-GB DIMMs) (standard) boards...
  • Page 25 Figure 9 8-DIMM Memory Carrier Board Slot IDs 24-DIMM Memory Carrier Load Order The 24-DIMM memory carrier has two sides, labeled side 0 and side 1, each of which contains a memory carrier board. The 24-DIMM memory carrier can contain up to six quads of memory. DIMM quads are loaded in order of size from largest to smallest capacity.

  • Page 26: Memory Loading Rules And Guidelines

    Memory Loading Rules and Guidelines Use the following rules and guidelines when installing memory: Install DIMMs in pairs for the 8-DIMM memory carrier and quads in the 24 DIMM memory carrier. Ensure that all DIMMs within a pair or quad are identical. Install pairs or quads in order of capacity from largest to smallest.

  • Page 27: Installing Memory

    21). NOTE: To avoid damage to the handles, HP recommends rotating the handles inward and snapping them into place when servicing the system DIMMs or any time the carrier is out of the chassis. Before replacing the memory carrier, press the button to release the extraction handles.

  • Page 28: Removing And Replacing The Processor Board Assembly

    Install the DIMMs (Figure 1 Align the DIMM with the slot located on the memory board, and align the key in the connector with the notch in the DIMM. Push on each end of the DIMM firmly and evenly until it seats into the slot. Ensure that the extraction levers are in the fully closed position.

  • Page 29: Replacing The Processor Board Assembly

    Unlatch the cover release lever on the top cover and remove the memory carrier assembly cover. See “Removing the Memory Carrier Assembly Cover” (page 13). NOTE: You do not need to fully remove the top cover to service this component; however, the top cover release lever must be open.

  • Page 30: Processor Load Order

    The server can contain one or two dual-core processors that provide the following configuration options: 1P/2C (One processor/two cores) 2P/4C (Two processors/four cores) WARNING! Ensure that the system is powered off and all power sources have been disconnected from the server prior to performing this procedure. Voltages are present at various locations within the server whenever an AC power source is connected.
  • Page 31 Open the processor cage (Figure 13). Grasp the processor cage handle and rotate the handle upward. Use the handle to rotate the cage closure 90 degrees toward the front of the assembly until it stops. IMPORTANT: Ensure the processor slot is entirely exposed. The processor must clear the cage closure for proper installation.

  • Page 32: Installing The Server Into A Rack Or Pedestal Mount

    This section provides instructions on how to install the server into a rack or a pedestal mount. Installing the Server into a Rack The following information describes how to install the server into an HP rack or an approved non-HP rack.

  • Page 33: Hp Rack

    HP servers that are installed into racks are shipped with equipment mounting slides. An installation guide comes with each set of slides: HP 3-7U Quick Deploy Rail System Installation Instructions for HP Products. Follow the steps in this installation guide to determine where and how to install the server into the rack.

  • Page 34: Power States

    Power States The server has three power states: standby power full power To get to standby power state plug the power cord into the appropriate receptacle on the rear of the chassis. The front panel Power button is not turned on. Full power occurs when the power cord is plugged into the appropriate receptacle and either the power is activated through the iLO 2 MP PC command, or the Power button is activated.

  • Page 35: Applying Standby Power To The Server

    Attach the other end of the strap to the power cord (Figure 16). Figure 16 Fastening the Power Supply Applying Standby Power to the Server To apply standby power to the server, follow these steps: IMPORTANT: If the server has one BPS, plug the power cable into the receptacle labeled PWR Locate the appropriate receptacle on the rear of the chassis.

  • Page 36: Console Setup

    2 is available whenever the system is connected to a power source, even if the server main power switch is turned off. NOTE: For more information on iLO 2, see the HP Integrity Integrated Lights-Out 2 Operations Guide. Extensible Firmware Interface (EFI). Provides an interface between the operating system and the firmware.

  • Page 37: Setup Checklist

    Activate Advanced Pack Features Activate advanced features by entering a license key. For details on Advanced Pack Features see the HP Integrity iLO 2 Operations Guide. Console Setup Flowchart Use this flowchart as a guide to assist in the console setup process.

  • Page 38: Preparation

    Figure 18 Console Setup Flowchart Preparation There are several tasks to perform before you can configure the iLO 2 MP LAN. Determine the physical access method to select and connect cables. Determine the iLO 2 MP LAN configuration method and assign an IP address if necessary. Determining the Physical iLO 2 MP Access Method Before you can access the iLO 2 MP, you must first determine the correct physical connection method.

  • Page 39: Determining The Ilo 2 Mp Lan Configuration Method

    Figure 19 Server Rear Ports iLO 2 MP RS-232 Serial VGA Port Link and Activity LED Port (DB-9F to DB-9F Standby Power (No iLO 2 MP access; EFI cable) MP Self Test only) Connected to emulation General Use Serial Port terminal device (PC, (Printers, etc.) laptop, or ASCII terminal)

  • Page 40: Configuring The Ilo 2 Mp Lan Using Dhcp And Dns

    Configuring the iLO 2 MP LAN Using DHCP and DNS DHCP automatically configures all DHCP-enabled servers with IP addresses, subnet masks, and gateway addresses. All HP Integrity entry class servers with iLO 2 are shipped from the factory with DHCP enabled.

  • Page 41: Configuring The Ilo 2 Mp Lan Using Arp Ping

    When DHCP is enabled, the system is vulnerable to security risks because anyone can access the iLO 2 MP until you change the default user name and password. HP strongly recommends you assign user groups and rights before proceeding. Configuring the iLO 2 MP LAN Using ARP Ping...

  • Page 42: Configuring The Ilo 2 Mp Lan Using The Rs-232 Serial Port

    Table 14 ARP Ping Commands ARP Command Description This command assigns the IP address to the iLO 2 MP MAC address. This ARP table entry maps arp -s the MAC address of the iLO 2 MP LAN interface to the static IP address designated for that interface.

  • Page 43: Logging In To Ilo 2

    IMPORTANT: Ensure you have a console connection through the RS-232 serial port or a network connection through the LAN to access the iLO 2 MP and use the LC command. To assign a static IP address using the LC command, follow these steps: Ensure the emulation software device is properly configured.

  • Page 44: Additional Setup

    Main Menu Help Exit Connection See the HP Integrity Integrated Lights-Out 2 Operations Guide for information on the iLO 2 MP menus and commands. When logging in using the local or remote RS-232 serial ports, the login prompt may not display if another user is logged in through these ports.

  • Page 45: Setting Up Security

    HP recommends leaving at least one local account enabled as an alternate method of access. Accessing the Host Console This section provides information on the different methods of accessing the host console of an HP Integrity server. Accessing iLO 2 With the Web Browser Web browser access is an embedded feature of the iLO 2 MP.
  • Page 46 To interact with iLO 2 through the web GUI, follow these steps: Open a web browser and enter the host name or the IP address for the iLO 2 MP. Log in using your user account name and password at the login page. (Figure 20).

  • Page 47: Help

    Remote Console (IRC), see the HP Integrity Integrated Lights-Out 2 Operations Guide. Accessing the Host Console with the SMASH SM CLP For information on how to access the host console using the SMASH SM CLP, see the HP Integrity Integrated Lights-Out 2 Operations Guide.

  • Page 48: Powering On And Powering Off The Server

    Powering On and Powering Off the Server This section provides information and procedures for powering off and powering on the server. Power States The server has three power states: Standby power Plug the power cord into the appropriate receptacle on the rear of the chassis; the front panel Power button is not turned on.

  • Page 49: Powering Off The Server

    Figure 22 rx3600 Power Button Start the operating system. For more information see the operating system documentation. Powering Off the Server Power off the server using the following methods: iLO 2 MP PC command Power button Powering Off the Server Using the iLO 2 MP To power off the server using the iLO 2 MP, follow these steps: Gracefully shut down the operating system.

  • Page 50: Integrated Raid

    SAS device and the update fails, these files will not be accessible. To update firmware, follow these steps: Insert the HP IPF Offline Diagnostics and Utilities CD in the drive and boot to the EFI Shell. NOTE: You can also download the firmware image file and update utility from the HP website http://www.hp.com...

  • Page 51: Flashing Firmware On First Controller

    To determine the current version of the firmware, follow these steps. At the EFI Shell, enter mptutil from the directory that contains mptutil.efi. The following example indicates that the EFI Serial Attached SCSI card utility version is 1.01.12.00: fs0:\EFI\HP\TOOLS\NETWORK> mptutil MPTUTIL-1.01.12.00 Vendor Device...

  • Page 52: Viewing The Vpd Information For Efi Driver And Risc Firmware

    Answer The firmware you just flashed on the HBA does not run until a diagnostic reset occurs. If you exit the utility and reenter it, the version string is updated. Question This image does not contain a valid nvdata when I try to flash the firmware, why? Answer You are expected to concatenate a proper nvdata image on to the firmware.

  • Page 53: Configuration Utility Screens

    Change Item - Items with values in [ ] brackets are modifiable. Numeric keypad + and numeric keypad - (minus) update a modifiable field to its next relative value. Abort/Exit - Escape aborts the current context operation and/or exits the current screen.
  • Page 54 PCI Dev Indicates the PCI Device assigned by the system BIOS to an adapter (range 0x00 - 0x1F, 0 - 31 decimal) PCI Fnc Indicates the PCI Function assigned by the system BIOS to an adapter (range 0x00 - 0x7, 0 - 7 decimal) FW Revision Displays the Fusion MPT firmware version and type (IR or IT) Status...
  • Page 55 FW Revision Displays the MPT firmware version and type in the format (x.xx.xx.xx- yy), where x.xx.xx.xx refers to the FW version and yy refers to the type. The currently supported type is IR.l). SAS Address Displays the SAS Address assigned to this adapter. FW Revision Displays the Fusion MPT firmware version and type (IR or IT) Status...
  • Page 56 Select New Array Type Screen The Select New Array Type screen enables you to view an existing array or create an Integrated Mirror array of two disks, plus an optional hot spare. To go to the Create New Array screen, select Create IM Volume. To go to the View Array screen, select View an Existing Array.
  • Page 57 Missing Disk is not responding. Failed Disk has failed. Initalizing Disk is initializing. CfgOffln Disk is offline at host's request. User Fail Disk is marked failed at host's request. Offline Disk is offline for some other reason. Inactive Disk has been set inactive. Not Syncd Data on disk is not synchronized with the rest of the array.
  • Page 58 RAID Disk Specifies the devices (disks) that make up an IM array. If RAID Disk is Yes, the device is part of an IM array, if No, the device is not part of an IM array. This field is grayed out under the following conditions: The device does not meet the minimum requirements for use in an IM array.
  • Page 59 Pred Fail Indicates whether device SMART is predicting device failure (Yes, No). Size(MB) Indicates the size of the device in megabytes (megabyte = 1024 x 1024 = 1,048,576). If the device is part of a two-disk array, this field reflects the size of the array, not the size of the individual disk. If the device is part of a three or more disk array, this field is the size that the disk makes up within the array.

  • Page 60: Cfggen Utility

    SAS controllers. Some cfggen commands work only with SAS adaptors in the EFI environment. Starting CFGGEN Thecfggenutility is located on the HP IPF Offline Diagnostic and Utilities CD. To use cfggen, follow these steps: Insert the CD into the drive.

  • Page 61: Rules For Creating Im Volumes And Hot Spare Disks

    The cfggen command uses a command line interface. Syntax: cfggen <controller #> <command> <parameters> NOTE: The program name, controller number, command, and parameters fields must be separated by the ASCII space character. The format of the parameters is command specific. The program return value is returned to the user when the program exits.

  • Page 62: Smart Array P400, P600 And P800 Controllers

    SCSI ID values for disks to use in the volume. The cfggen utility automatically uses the first disks it finds that are usable in the IM volume. Firmware and hardware limitations for the family of controllers limit the number of configurations that are possible. Syntax cfggen <controller #>...

  • Page 63: Connecting External Storage

    User guide for the specific HP Smart Array Controller at: http://www.hp.com/go/integrity-iocards-docs under the specific HP Smart Array Controller product for installation procedures. The latest firmware, drivers, utilities, software, and documentation for HP Integrity servers are available on the support page of the HP website at: http://www.hp.com/support/itaniumservers Connecting External Storage IMPORTANT: Not all OSs support external drives.

  • Page 64: Saupdate Utility

    SAUPDATE Utility Use saupdate from the EFI Shell to update the firmware image on the HP Smart Array Controller. Command line options are described below. Follow one of these two procedures to run saupdate:. If you are using saupdate from the Offline Diagnostic CD: Download the firmware and copy it to the EFI partition.

  • Page 65: Update

    Func Description Version HP Smart Array P600 1.92 HP Smart Array 5300 3.54 The identification information from this list is used to designate which controller is to be updated. UPDATE NOTE: The saupdate utility program file (saupdate.efi) must be located in the same file system as the firmware files.

  • Page 66: Help Or

    Power on the server. The server boots to EFI. The EFI Boot Manager may be used from the enhanced interface (grey background) or the legacy interface (black background). Load the HP Smart Setup media into the server DVD drive. From the EFI Boot Menu, select Internal Bootable DVD and press Enter. EBSU starts and displays the Welcome screen.
  • Page 67 Figure 26 EBSU Welcome Screen Select OK and press Enter to continue. From the main menu, select Maintain Firmware and press Enter. Figure 27 EBSU Main Menu In the Maintain Firmware screen, use the tab key to scroll down to the Device section. Use the down arrow key to scroll down to the Smart Array Controller item in the list.

  • Page 68: Configuring The Array

    The firmware update begins and proceeds automatically to completion. Configuring the Array HP provides two utilities for manually configuring an array on a Smart Array controller: ORCA, a simple ROM-based configuration utility. Array Configuration Utility (ACU), a versatile, browser-based utility that provides maximum...

  • Page 69: Comparing The Utilities

    14 physical drives in the array. For conceptual information about arrays, logical drives, and fault-tolerance methods, and for information about default array configuration settings, see the HP Array Configuration Utility User Guide at I/O Cards and Networking Software at: http://www.hp.com/go/integrity-iocards-docs...

  • Page 70: Creating A Logical Drive Using Orca

    ACU Utility For detailed information about using ACU, see the HP Array Configuration Utility User Guide at I/O Cards and Networking Software at: http://www.hp.com/go/integrity-iocards-docs...

  • Page 71: Installation Troubleshooting

    2 MP, and is accessed through the console. Additional information about troubleshooting is available in the HP Integrity rx3600 User Service Guide. Offline troubleshooting programs are available on the HP website. To troubleshoot the server, you must be familiar with the Offline Diagnostics Environment (ODE) which runs in the Extensible Firmware Interface (EFI).

  • Page 72: Server Does Not Power On

    Table 20 Server Power Button Functions When Server is Off Action Reaction 1-3 seconds System power turns on. Server Does Not Power On The server Power button on the front panel operates differently depending on how long the button is held in, and on what the system is doing when the button is pressed. You must be aware of its uses to properly troubleshoot the system.

  • Page 73: Dvd Problems

    Exercise the appropriate self-test features of the console software. Downloading and Installing the Latest Version of the Firmware HP makes every effort to provide you with the most current version of firmware. However, there can be instances when this is not the case.

  • Page 74: Enabling The Trusted Platform Module

    The TPM is an optional security component which enhances security capabilities for the server if it is running the HP-UX operating system. The TPM is a security chip that is unique to the server. It performs key security processes independent of other hardware components. The TPM creates and stores additional encryption keys from the root key of the system.

  • Page 75: Index

    Index activity LED, location, Symbols load order, 24-DIMM memory carrier assembly see memory slot IDs, 8 Internal Port SAS HBA controller, status LED, location, 8-DIMM memory carrier assembly see memory disk drive filler, removing and replacing, disk drive, hot-pluggable, removing and replacing, drvcfg utility, accessing graphic console using VGA, dual-core processing,...
  • Page 76 installing, required service tools, load order, 24–25 restrictions, load order, 24-DIMM memory carrier assembly, processor board see processor board assembly load order, 8-DIMM memory carrier assembly, processor board assembly, removing and replacing, supported DIMM sizes, supported memory configurations, memory carrier assembly, removing and replacing, rack, installing server, memory extender board see memory carrier assembly remove and replace...

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