IBM Power 730 Express 8231-E2B User manual

Power Systems
System backplane for the
8231-E2B, 8231-E1C, 8231-E1D,
8231-E2C, 8231-E2D, or 8268-E1D
IBM

Power Systems
System backplane for the
8231-E2B, 8231-E1C, 8231-E1D,
8231-E2C, 8231-E2D, or 8268-E1D
IBM

Note
Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on
page 89, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823.
This edition applies to IBM Power Systems servers that contain the POWER7 processor and to all associated
models.
© Copyright IBM Corporation 2010, 2016.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety notices ................................. v
System backplane .............................. 1
Removing and replacing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or
8268-E1D system backplane ........................... 3
Removing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system backplane....... 3
Replacing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system backplane ...... 15
Common procedures for installable features ................... 33
Before you begin ................................. 33
Identifying a part ................................. 35
Control panel LEDs................................ 35
Identifying a failing part in an AIX system or logical partition ................. 37
Locating a failing part in an AIX system or logical partition ................. 37
Activating the indicator light for the failing part ..................... 37
Deactivating the failing-part indicator light ....................... 37
Identifying a failing part in an IBM i system or logical partition ................. 37
Activating the failing-part indicator light ....................... 38
Deactivating the failing-part indicator light ....................... 38
Identifying a failing part in a Linux system or logical partition ................. 39
Locating a failing part in a Linux system or logical partition ................. 39
Finding the location code of a failing part in a Linux system or logical partition .......... 39
Activating the indicator light for the failing part ..................... 40
Deactivating the failing-part indicator light ....................... 40
Locating a failing part in a Virtual I/O Server system or logical partition.............. 40
Identifying a part by using the Virtual I/O Server .................... 40
Starting the system or logical partition .......................... 41
Starting a system that is not managed by an HMC or an SDMC ................. 41
Starting a system or logical partition by using the HMC ................... 42
Starting a system or virtual server by using the SDMC .................... 42
Stopping a system or logical partition .......................... 43
Stopping a system that is not managed by an HMC or an SDMC ................ 43
Stopping a system by using the HMC ......................... 44
Stopping a system by using the SDMC ......................... 45
Enabling enclosure indicators ............................. 45
Removing and replacing covers on the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system 46
Removing the service access cover from the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D 46
Installing the service access cover on the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D .. 47
Placing the rack-mounted 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system into the service
position or operating position ............................. 47
Placing the rack-mounted 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D into the service
position ................................... 47
Placing the rack-mounted 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D into the operating
position ................................... 48
Disconnecting the power cords from the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D ... 50
Connecting the power cords to the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D ..... 50
Installing a part by using the HMC ........................... 51
Removing a part by using the HMC ........................... 52
Replacing a part by using the HMC ........................... 52
Installing a part by using the SDMC ........................... 52
Removing a part by using the SDMC........................... 53
Replacing a part by using the SDMC ........................... 53
Verifying the installed part .............................. 54
© Copyright IBM Corp. 2010, 2016 iii

Verifying an installed feature or replaced part in an AIX system or logical partition .......... 54
Verifying the installed part in an IBM i system or logical partition ................ 56
Deactivating the failing-part indicator light ....................... 57
Verifying the installed part in a Linux system or logical partition ................ 57
Verifying an installed part by using stand-alone diagnostics .................. 57
Verifying the installed part by using the HMC....................... 59
Activating and deactivating LEDs by using the HMC ................... 59
Deactivating a system attention LED or partition LED by using the HMC ........... 59
Activating or deactivating an identify LED by using the HMC ............... 60
Viewing serviceable events by using the HMC...................... 60
Verifying the installed part by using the SDMC ...................... 61
Activating and deactivating LEDs by using the SDMC ................... 61
Deactivating a system attention LED or partition LED by using the SDMC ........... 61
Activating or deactivating an identify LED by using the SDMC ............... 62
Viewing serviceable events by using the SDMC ..................... 62
Verifying an installed part or replaced part on a system or logical partition by using Virtual I/O Server tools 63
Verifying the installed part by using VIOS ....................... 63
Verify the replacement part by using VIOS ....................... 63
Verifying a repair ................................. 65
Verifying the repair in AIX ............................. 66
Verifying a repair by using an IBM i system or logical partition ................. 69
Verifying the repair in Linux ............................ 71
Verifying the repair from the management console ..................... 71
Closing a service call ................................ 73
Closing a service call by using AIX or Linux ....................... 77
Closing a service call by using Integrated Virtualization Manager ................ 81
Activating and deactivating LEDs ............................ 85
Deactivating a system attention LED or partition LED by using the management console ........ 86
Activating or deactivating an identify LED by using the management console ............ 87
Deactivating a system attention LED or logical partition LED by using the Advanced System Management
Interface ................................... 87
Activating or deactivating an identify LED by using the Advanced System Management Interface ..... 88
Notices ................................... 89
Trademarks ................................... 90
Electronic emission notices .............................. 90
Class A Notices ................................. 90
Class B Notices ................................. 94
Terms and conditions ................................ 97
iv Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

Safety notices
Safety notices may be printed throughout this guide:
vDANGER notices call attention to a situation that is potentially lethal or extremely hazardous to
people.
vCAUTION notices call attention to a situation that is potentially hazardous to people because of some
existing condition.
vAttention notices call attention to the possibility of damage to a program, device, system, or data.
World Trade safety information
Several countries require the safety information contained in product publications to be presented in their
national languages. If this requirement applies to your country, safety information documentation is
included in the publications package (such as in printed documentation, on DVD, or as part of the
product) shipped with the product. The documentation contains the safety information in your national
language with references to the U.S. English source. Before using a U.S. English publication to install,
operate, or service this product, you must first become familiar with the related safety information
documentation. You should also refer to the safety information documentation any time you do not
clearly understand any safety information in the U.S. English publications.
Replacement or additional copies of safety information documentation can be obtained by calling the IBM
Hotline at 1-800-300-8751.
German safety information
Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne § 2 der
Bildschirmarbeitsverordnung geeignet.
Laser safety information
IBM®servers can use I/O cards or features that are fiber-optic based and that utilize lasers or LEDs.
Laser compliance
IBM servers may be installed inside or outside of an IT equipment rack.
© Copyright IBM Corp. 2010, 2016 v

DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous. To
avoid a shock hazard:
vConnect power to this unit only with the IBM provided power cord. Do not use the IBM
provided power cord for any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
vConnect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet
supplies proper voltage and phase rotation according to the system rating plate.
vConnect any equipment that will be attached to this product to properly wired outlets.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or structural damage.
vDisconnect the attached power cords, telecommunications systems, networks, and modems before
you open the device covers, unless instructed otherwise in the installation and configuration
procedures.
vConnect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)
DANGER
vi Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

Observe the following precautions when working on or around your IT rack system:
vHeavy equipment–personal injury or equipment damage might result if mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo avoid hazardous conditions due to uneven mechanical loading, always install the heaviest
devices in the bottom of the rack cabinet. Always install servers and optional devices starting
from the bottom of the rack cabinet.
vRack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top
of rack-mounted devices.
vEach rack cabinet might have more than one power cord. Be sure to disconnect all power cords in
the rack cabinet when directed to disconnect power during servicing.
vConnect all devices installed in a rack cabinet to power devices installed in the same rack
cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power
device installed in a different rack cabinet.
vAn electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of
the system or the devices that attach to the system. It is the responsibility of the customer to
ensure that the outlet is correctly wired and grounded to prevent an electrical shock.
CAUTION
vDo not install a unit in a rack where the internal rack ambient temperatures will exceed the
manufacturer's recommended ambient temperature for all your rack-mounted devices.
vDo not install a unit in a rack where the air flow is compromised. Ensure that air flow is not
blocked or reduced on any side, front, or back of a unit used for air flow through the unit.
vConsideration should be given to the connection of the equipment to the supply circuit so that
overloading of the circuits does not compromise the supply wiring or overcurrent protection. To
provide the correct power connection to a rack, refer to the rating labels located on the
equipment in the rack to determine the total power requirement of the supply circuit.
v(For sliding drawers.) Do not pull out or install any drawer or feature if the rack stabilizer brackets
are not attached to the rack. Do not pull out more than one drawer at a time. The rack might
become unstable if you pull out more than one drawer at a time.
v(For fixed drawers.) This drawer is a fixed drawer and must not be moved for servicing unless
specified by the manufacturer. Attempting to move the drawer partially or completely out of the
rack might cause the rack to become unstable or cause the drawer to fall out of the rack.
(R001)
Safety notices vii

CAUTION:
Removing components from the upper positions in the rack cabinet improves rack stability during
relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a
room or building:
vReduce the weight of the rack cabinet by removing equipment starting at the top of the rack
cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you
received it. If this configuration is not known, you must observe the following precautions:
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are no empty U-levels between devices installed in the rack cabinet below the
32U level.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from
the suite.
vInspect the route that you plan to take to eliminate potential hazards.
vVerify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the
documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.
vVerify that all door openings are at least 760 x 230 mm (30 x 80 in.).
vEnsure that all devices, shelves, drawers, doors, and cables are secure.
vEnsure that the four leveling pads are raised to their highest position.
vEnsure that there is no stabilizer bracket installed on the rack cabinet during movement.
vDo not use a ramp inclined at more than 10 degrees.
vWhen the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet.
– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest
position to the highest position.
vIf a long-distance relocation is required, restore the rack cabinet to the configuration of the rack
cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent.
Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the
pallet.
(R002)
(L001)
(L002)
viii Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

(L003)
or
All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class
1 laser products. Outside the U.S., they are certified to be in compliance with IEC 60825 as a class 1 laser
product. Consult the label on each part for laser certification numbers and approval information.
CAUTION:
This product might contain one or more of the following devices: CD-ROM drive, DVD-ROM drive,
DVD-RAM drive, or laser module, which are Class 1 laser products. Note the following information:
vDo not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
vUse of the controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
(C026)
Safety notices ix

CAUTION:
Data processing environments can contain equipment transmitting on system links with laser modules
that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical
fiber cable or open receptacle. (C027)
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments. (C028)
CAUTION:
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following
information: laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam. (C030)
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.
Do Not:
v___ Throw or immerse into water
v___ Heat to more than 100°C (212°F)
v___ Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For information,
call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)
Power and cabling information for NEBS (Network Equipment-Building System)
GR-1089-CORE
The following comments apply to the IBM servers that have been designated as conforming to NEBS
(Network Equipment-Building System) GR-1089-CORE:
The equipment is suitable for installation in the following:
vNetwork telecommunications facilities
vLocations where the NEC (National Electrical Code) applies
The intrabuilding ports of this equipment are suitable for connection to intrabuilding or unexposed
wiring or cabling only. The intrabuilding ports of this equipment must not be metallically connected to the
interfaces that connect to the OSP (outside plant) or its wiring. These interfaces are designed for use as
intrabuilding interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation
from the exposed OSP cabling. The addition of primary protectors is not sufficient protection to connect
these interfaces metallically to OSP wiring.
Note: All Ethernet cables must be shielded and grounded at both ends.
The ac-powered system does not require the use of an external surge protection device (SPD).
The dc-powered system employs an isolated DC return (DC-I) design. The DC battery return terminal
shall not be connected to the chassis or frame ground.
xPower Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

System backplane
Learn how to install, remove, and replace a system backplane.
The following procedures describe the removal and replacement of the system backplane. Replacing this
field-replaceable unit (FRU) must be completed by an authorized service representative.
To complete these procedures, you need to print the following topics. If the IBM Systems Hardware
Information Center is available on a PC or a notebook that is close to the system on which you are
servicing parts, you can use the online version.
vFans
vGX adapters
vHost Ethernet Adapters
vMemory modules
vPCI adapters
vPower interlock switch
vPower supplies
vSystem processor module
vVoltage regulator module
© Copyright IBM Corp. 2010, 2016 1

2Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

Removing and replacing the 8231-E2B, 8231-E1C, 8231-E1D,
8231-E2C, 8231-E2D, or 8268-E1D system backplane
Learn how to remove or replace the IBM Power®710 Express (8231-E2B, 8231-E1C, 8231-E1D, or
8268-E1D) and the IBM Power 730 Express (8231-E2B, 8231-E2C, or 8231-E2D) system backplane.
Removing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or
8268-E1D system backplane
Learn how to remove the system backplane from a server to replace a failing part or as part of another
service procedure.
Notes:
vBefore you begin this procedure, ensure that you have authority to log in as an authorized service
provider. The authority levels are described in ASMI authority levels.
vIdentify the system that you will be working on by using the identify the system process to turn on the
system locate (blue) indicator. For more information, see Control panel LEDs.
If your system is managed by the Hardware Management Console (HMC), use the HMC to remove the
system backplane. For instructions, see Removing a part using the Hardware Management Console.
If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to
remove the system backplane. For instructions, see Removing a part using the Systems Director
Management Console.
If you do not have an HMC or an SDMC, complete the following steps to remove the system backplane:
1. Access the Advanced System Management Interface (ASMI).
The ASMI is the interface to the service processor that is required to perform general and
administrator-level service tasks, such as reading service processor error logs, reading vital product
data, setting up the service processor, and controlling the system power. The ASMI might also be
referred to as the service processor menus. To access the ASMI, see Accessing the Advanced System
Management Interface. After you have accessed the ASMI, continue with the next step.
2. Check and record the System Enclosure Type and Feature Code.
The enclosure serial number is a seven-digit number that is printed on a bar-coded label on the
system unit.
Note: The feature code number for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or
8268-E1D system backplane is 78AB-001.
3. Record the bootlist settings by using the Systems Management Services (SMS).
4. Check and record the server settings.
Before replacing this field-replaceable unit (FRU), check and record all server settings since you
might need to update the system after you replace this FRU. This can be done through the ASMI.
a. Check and record the server firmware level that is indicated on the right edge of the status
frame, the area where the Log out button is located. You might need to update the system to the
latest server firmware code level after you replace this FRU.
b. Check and record the service processor settings that you previously set using the ASMI. You will
need to reset these service processor settings after you update this FRU or the default settings
will be used. It is recommended you record these settings, however you may not need to reenter
all of them after you replace this FRU.
© Copyright IBM Corp. 2010, 2016 3

c. Record System Power Control settings:
1) In the navigation area, select Power Restart/Control >Power On/Off settings.
2) Manually record the values of system diagnostic level for the next boot, firmware boot side
for the next boot, system operating mode, server firmware start policy, system power off
policy, and default partition environment.
d. Record System Service Aids settings:
1) In the navigation area, select System Service Aids > System Dump.
2) Manually record the system dump policy, hardware content, and server firmware content
settings.
3) In the navigation area, select System Service Aids > Service Processor Dump.
4) Manually record the service processor dump setting.
e. Record System Configuration settings:
1) In the navigation area, select System Configuration settings > System Name.
2) Manually record the system name.
Note: For systems ordered with feature code 2319, the Field Core Override (FCO) setting
must be recorded. For more information, see Field core override function overview.
3) In the navigation area, select System Configuration settings > Hardware Deconfiguration >
Field Core Override.
4) Manually record the current FCO setting.
f. Record Network Services settings:
1) In the navigation area, select Network Services >Network Configuration.
2) Manually record the service processor IP addresses for eth0 and eth1, including subnet mask,
default gateway, DNS server addresses, and type of IP address.
3) In the navigation area, select Network Services >Network Access.
4) Manually record the allowed and denied IP addresses.
g. Record Performance Option settings:
1) In the navigation area, select Performance Setup >Logical Memory Block Size.
2) Manually record the logical memory block size.
3) In the navigation area, select Performance Setup > System Memory Page Setup.
4) Manually record the huge page size.
h. Record Login Profile settings:
1) In the navigation area, select Login Profile > Update Installed Languages.
2) Manually record the currently installed languages.
i. Record Vital Product Data information:
1) In the navigation area, select System Configuration >Program Vital Product Data > System
Brand.
2) Manually record the value for the system brand, which appears in the right pane.
3) In the navigation area, select System Configuration >Program Vital Product Data > System
Keywords.
4) Manually record the machine type-model, system serial number, system unique ID values,
reserved, and RB keyword0.
5) In the navigation area, select System Configuration > Program Vital Product Data > System
Enclosures.
j. Record Enclosure information:
1) In the right pane, select the Enclosure location: UXXXX.YYY.ZZZZ and click Continue.
4Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

2) Manually record the values of enclosure location, feature code/sequence number, enclosure
serial number, and reserved.
k. Record any service processor settings that you might have set using the operating system
commands.
5. Shut down the partitions and power off the system.
This FRU cannot be serviced concurrently. Every partition must be shut down, and the system must
be powered off to continue the repair. Authorization must come from the customer to shut down all
running partitions and to power off the system. If the customer does not allow the partitions to be
shut down or the system to be powered off, delay the service procedure. If the customer is using a
secondary management console to manage the system, ensure that the customer is not powering on
the system at this time. For instructions, see Stopping a system or logical partition.
6. Disconnect the power source from the system by unplugging the system.
Note: This system is optionally equipped with a second power supply. Before continuing with this
procedure, ensure that the power source to the system has been completely disconnected.
(L003)
or
7. Disconnect the external cables from the system. Label and disconnect the external cables that are
connected to the system you are servicing.
8. Place the system into the service position. For instructions, see Placing the rack-mounted 8231-E2B,
8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D into the service position.
9. Remove the service access cover. For instructions, see Removing the service access cover from the
8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D .
10. Attach the wrist strap.
Removing and replacing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system backplane 5

Attention:
Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic
discharge from damaging your hardware.
When using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control.
It does not increase or decrease your risk of receiving electric shock when using or working on
electrical equipment.
If you do not have a wrist strap, prior to removing the product from ESD packaging and
installing or replacing hardware, touch an unpainted metal surface of the system for a minimum
of 5 seconds.
11. Remove the memory modules. For instructions, see Removing memory modules from the 8231-E2B,
8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D.
12. Remove the GX adapters.
For instructions, see Removing GX adapters from the 8231-E2B with the power turned off.
For instructions, see Removing GX adapters from the 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D
with the power turned off.
13. Remove the PCI adapters. For instructions, see Removing a PCI adapter from the 8231-E2B,
8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D with the power off.
14. Remove the RAID card P1-C12 (8231-E2B only), if present.
Remove the RAID card P1-C13, if present.
Remove the RAID card P1-C18, if present
15. Remove the Host Ethernet card from the 8231-E2B. For instructions, see Removing the 8231-E2B Host
Ethernet Adapter with the power off.
16. Remove the voltage regulator module. For instructions, see Removing the 8231-E2B, 8231-E1C,
8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D voltage regulator module.
17. Remove the fans. For instructions, see Removing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C,
8231-E2D, or 8268-E1D system unit fans.
18. Remove the power supplies. For instructions, see Removing the 8231-E2B, 8231-E1C, 8231-E1D,
8231-E2C, 8231-E2D, or 8268-E1D power supply with the power turned off.
19. Disconnect all internal cables from the system backplane. Examples of the cables to disconnect
follow:
a. Disconnect the operator panel cable (A). See Figure 1 on page 7.
6Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

b. Disconnect the SAS cable:
1) Press the side tab (B) and pull out the SAS shroud from the external SAS connection port on
the disk drive backplane. See Figure 2 on page 8.
2) Pull out the SAS cable (C) from the system.
3) Press the latch for the SAS connection port (A) and then dislodge the SAS cable (C) out of the
system backplane.
Figure 1. Disconnecting the operator panel cable
Removing and replacing the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D system backplane 7

c. Disconnect the media device cables (A). See Figure 3.
20. Remove the disk drive cage:
Figure 2. Removing the external SAS port
Figure 3. Disconnecting the media device cables
8Power Systems: System backplane for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D