IBM Power Systems 8247-42L User manual

Power Systems
System backplane for the 8247-42L,
8286-41A, or 8286-42A
IBM

Power Systems
System backplane for the 8247-42L,
8286-41A, or 8286-42A
IBM

Note
Before using this information and the product it supports, read the information in “Safety notices” on page vii, “Notices”
on page 197, 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 POWER8 processor and to all associated
models.
© Copyright IBM Corporation 2014, 2017.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety notices ................................ vii
System backplane for the 8247-42L, 8286-41A, or 8286-42A ............. 1
Removing and replacing the base function system backplane in the 8247-42L, 8286-41A, or 8286-42A ...... 1
Preparing the system to remove and replace the base function system backplane ........... 2
Removing the base function system backplane from the 8247-42L, 8286-41A, or 8286-42A......... 6
Replacing the base function system backplane in the 8247-42L, 8286-41A, or 8286-42A ......... 21
Preparing the system for operation after removing and replacing the base function system backplane .... 51
Removing and replacing the expanded function system backplane for the 8247-42L, 8286-41A, or 8286-42A ... 57
Preparing the system to remove and replace the expanded function system backplane ......... 58
Removing the expanded function system backplane from the 8247-42L, 8286-41A, or 8286-42A ...... 63
Replacing the expanded function system backplane in the 8247-42L, 8286-41A, or 8286-42A ....... 76
Preparing the system for operation after removing and replacing the expanded function system backplane .. 104
Common procedures for removing and replacing the system backplane ....... 111
Before you begin ................................. 111
Identifying a part ................................. 114
Identifying the enclosure or server that contains the part ................... 114
Enabling enclosure or server indicators with the ASMI .................. 114
Control panel LEDs .............................. 114
Activating an identify LED for an enclosure or server by using the HMC ............ 115
Finding the part location code and LED support status ................... 116
Identifying a part by using the operating system or VIOS .................. 117
Identifying a part in an AIX system or logical partition .................. 117
Finding the location code for a part in an AIX system or logical partition ........... 117
Activating the indicator light for a part by using AIX diagnostics .............. 118
Identifying a part in an IBM i system or logical partition .................. 118
Finding the location code and activating the indicator light for a part by using the IBM i operating
system.................................. 118
Identifying a part in a Linux system or logical partition .................. 119
Finding the location code of a part in a Linux system or logical partition ........... 119
Activating the indicator light for a part by using the Linux operating system .......... 119
Identifying a part in a VIOS system or logical partition .................. 119
Finding the location code of a part in a VIOS system or logical partition ........... 119
Activating the indicator light for a part by using the VIOS tools .............. 120
Identifying a part by using the ASMI ......................... 120
Activating the identify LED by using the ASMI when you know the location code ......... 120
Activating the identify LED by using the ASMI when you do not know the location code....... 121
Identifying a part by using the HMC ......................... 121
Starting the system or logical partition .......................... 122
Starting a system that is not managed by an HMC ..................... 122
Starting a system by using the control panel ...................... 122
Starting a system by using the ASMI ........................ 124
Starting a system or logical partition by using the HMC ................... 124
Starting a system or logical partition by using the HMC Classic or HMC Enhanced interface...... 124
Starting a system or logical partition by using the HMC Enhanced + Tech Preview (Pre-GA) or HMC
Enhanced+ interface .............................. 124
Starting an IBM PowerKVM system .......................... 125
Stopping a system or logical partition .......................... 125
Stopping a system that is not managed by an HMC .................... 125
Stopping a system by using the control panel ..................... 126
Stopping a system by using the ASMI ........................ 126
Stopping a system by using the HMC ......................... 126
Stopping a system by using the HMC Classic or HMC Enhanced interface ............ 127
Stopping a system by using the HMC Enhanced + Tech Preview (Pre-GA) or HMC Enhanced+ interface 127
© Copyright IBM Corp. 2014, 2017 iii

Stopping an IBM PowerKVM system ......................... 127
Removing and replacing covers on the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L, 8284-21A, 8284-22A,
8286-41A, or 8286-42A system ............................. 128
Removing the front cover ............................. 128
Removing the front cover from a rack-mounted 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or
8284-22A system ............................... 128
Removing the front cover from a rack-mounted 8247-42L, 8286-41A, or 8286-42A system ....... 129
Removing the front cover from a stand-alone 8286-41A system ................ 130
Removing the side cover from a stand-alone 8286-41A system with an internal RDX docking station ... 131
Installing the front cover ............................. 134
Installing the front cover on a rack-mounted 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A
system .................................. 134
Installing the front cover on a rack-mounted 8247-42L, 8286-41A, or 8286-42A system ........ 135
Installing the front cover and front door on a stand-alone 8286-41A system............ 136
Installing the side cover on a stand-alone 8286-41A system with an internal RDX docking station .... 137
Removing the service access cover from a 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L, 8284-21A,
8284-22A, 8286-41A, or 8286-42A system ........................ 140
Removing the service access cover from a rack-mounted 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L,
8284-21A, 8284-22A, 8286-41A, or 8286-42A system .................... 140
Removing the service access cover from a stand-alone 8286-41A system ............. 141
Installing the service access cover on a 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L, 8284-21A, 8284-22A,
8286-41A, or 8286-42A system ............................ 142
Installing the service access cover on a rack-mounted 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L,
8284-21A, 8284-22A, 8286-41A, or 8286-42A system .................... 142
Installing the service access cover on a stand-alone 8286-41A system .............. 143
Air baffle................................... 144
Opening the air baffle on an 8247-42L, 8286-41A, or 8286-42A system ............. 144
Closing the air baffle on an 8247-42L, 8286-41A, or 8286-42A system .............. 145
Removing the air baffle from an 8247-42L, 8286-41A, or 8286-42A system ............ 146
Replacing the air baffle on an 8247-42L, 8286-41A, or 8286-42A system ............. 147
Service and operating positions for the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L, 8284-21A, 8284-22A,
8286-41A, or 8286-42A system ............................. 148
Placing the rack-mounted system into the service position .................. 148
Placing the rack-mounted system into the operating position ................. 150
Air baffle.................................... 150
Opening the air baffle on an 8247-42L, 8286-41A, or 8286-42A system .............. 150
Closing the air baffle on an 8247-42L, 8286-41A, or 8286-42A system ............... 151
Removing the air baffle from an 8247-42L, 8286-41A, or 8286-42A system ............. 152
Replacing the air baffle on an 8247-42L, 8286-41A, or 8286-42A system .............. 153
Power cords ................................... 154
Disconnecting the power cords from the system ...................... 154
Connecting the power cords to the system........................ 157
Installing or replacing a part with an HMC ........................ 160
Installing a part by using the HMC .......................... 160
Removing a part by using the HMC.......................... 160
Repairing a part by using the HMC .......................... 161
Verifying the installed part .............................. 162
Verifying a part by using the operating system or VIOS ................... 162
Verifying an installed feature or replaced part by using an AIX system or logical partition ...... 162
Verifying an installed feature by using the AIX operating system .............. 162
Verifying a replaced part by using the AIX operating system ............... 163
Verifying the installed part by using an IBM i system or logical partition ............ 165
Verifying an installed part by using a Linux system or logical partition ............. 165
Verifying an installed part by using stand-alone diagnostics ................. 165
Verifying an installed part or replaced part on a system or logical partition by using Virtual I/O Server
tools ................................... 167
Verifying an installed part by using VIOS ...................... 167
Verify the replacement part by using VIOS ..................... 167
Verifying the installed part by using the HMC ...................... 169
Viewing serviceable events by using the HMC ..................... 170
Verifying a repair ................................. 170
iv System backplane

Verifying the repair in AIX ............................. 171
Verifying a repair by using an IBM i system or logical partition ................ 174
Verifying the repair in Linux ............................ 176
Verifying the repair on an IBM PowerKVM system ..................... 176
Verifying the repair from the management console ..................... 177
Closing a service call ................................ 178
Closing a service call by using AIX or Linux ....................... 181
Closing a service call by using IBM PowerKVM ...................... 184
Closing a service call by using Integrated Virtualization Manager ................ 185
Activating and deactivating LEDs ........................... 188
Deactivating a system attention LED or partition LED by using the management console ........ 188
Activating or deactivating an identify LED by using the management console............ 189
Deactivating a system attention LED or logical partition LED by using the Advanced System Management
Interface ................................... 190
Activating or deactivating an identify LED by using the Advanced System Management Interface ..... 190
Deactivating an identify LED ............................. 191
Deactivating a system attention LED by using the operating system or VIOS tools .......... 191
Deactivating the indicator light for a part by using AIX diagnostics .............. 191
Deactivating the indicator light by using the IBM i operating system .............. 191
Deactivating the indicator light by using the Linux operating system.............. 192
Deactivating the indicator light for a part by using the VIOS tools .............. 192
Deactivating a system attention LED by using the ASMI ................... 192
Deactivating the identify LED by using the ASMI when you know the location code ........ 193
Deactivating the identify LED by using the ASMI when you do not know the location code ...... 193
Deactivating a check log indicator (system information indicator) by using the ASMI ........ 193
Deactivating LEDs by using the HMC ......................... 194
Deactivating a system attention LED or partition LED by using the HMC ............ 194
Deactivating an identify LED for a FRU by using the HMC ................. 195
Deactivating an identify LED for an enclosure by using the HMC ............... 195
Notices ................................... 197
Accessibility features for IBM Power Systems servers ..................... 198
Privacy policy considerations ............................. 199
Trademarks ................................... 200
Electronic emission notices .............................. 200
Class A Notices................................. 200
Class B Notices................................. 204
Terms and conditions................................ 207
Contents v

vi System backplane

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.
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:
vIf IBM supplied the power cord(s), connect 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.
– For AC power, disconnect all power cords from their AC power source.
– For racks with a DC power distribution panel (PDP), disconnect the customer’s DC power source to
the PDP.
vWhen connecting power to the product ensure all power cables are properly connected.
© Copyright IBM Corp. 2014, 2017 vii

– For racks with AC power, connect 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.
– For racks with a DC power distribution panel (PDP), connect the customer’s DC power source to
the PDP. Ensure that the proper polarity is used when attaching the DC power and DC power
return wiring.
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.
vDo not attempt to switch on power to the machine until all possible unsafe conditions are corrected.
vAssume that an electrical safety hazard is present. Perform all continuity, grounding, and power checks
specified during the subsystem installation procedures to ensure that the machine meets safety
requirements.
vDo not continue with the inspection if any unsafe conditions are present.
vBefore you open the device covers, unless instructed otherwise in the installation and configuration
procedures: Disconnect the attached AC power cords, turn off the applicable circuit breakers located in
the rack power distribution panel (PDP), and disconnect any telecommunications systems, networks,
and modems.
DANGER:
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. For AC power, remove the power cords from the outlets.
3. For racks with a DC power distribution panel (PDP), turn off the circuit breakers located in the
PDP and remove the power from the Customer's DC power source.
4. Remove the signal cables from the connectors.
5. 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. For AC power, attach the power cords to the outlets.
5. For racks with a DC power distribution panel (PDP), restore the power from the Customer's DC
power source and turn on the circuit breakers located in the PDP.
6. Turn on the devices.
Sharp edges, corners and joints may be present in and around the system. Use care when handling
equipment to avoid cuts, scrapes and pinching. (D005)
(R001 part 1 of 2):
DANGER: 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. In addition, do not lean on rack mounted devices and do not use them to
stabilize your body position (for example, when working from a ladder).
viii System backplane

vEach rack cabinet might have more than one power cord.
– For AC powered racks, be sure to disconnect all power cords in the rack cabinet when directed to
disconnect power during servicing.
– For racks with a DC power distribution panel (PDP), turn off the circuit breaker that controls the
power to the system unit(s), or disconnect the customer’s DC power source, 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.
(R001 part 2 of 2):
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.
Safety notices ix

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 (compliance ID RACK-001 or 22U (compliance ID RR001)
and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are little-to-no empty U-levels between devices installed in the rack cabinet
below the 32U (compliance ID RACK-001 or 22U (compliance ID RR001) level, unless the
received configuration specifically allowed it.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from
the suite.
vIf the rack cabinet you are relocating was supplied with removable outriggers they must be
reinstalled before the cabinet is relocated.
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)
DANGER: Hazardous voltage, current, or energy levels are present inside any component that has this
label attached. Do not open any cover or barrier that contains this label. (L001)
(L002)
xSystem backplane

DANGER: Rack-mounted devices are not to be used as shelves or work spaces. (L002)
(L003)
12
or
!
1
2
or
1 2
34
or
Safety notices xi

1234
or
DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or
multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power
cables. (L003)
(L007)
CAUTION: A hot surface nearby. (L007)
(L008)
xii System backplane

CAUTION: Hazardous moving parts nearby. (L008)
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)
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. Although shining light into one end and looking into the other end of
a disconnected optical fiber to verify the continuity of optic fibers many not injure the eye, this
procedure is potentially dangerous. Therefore, verifying the continuity of optical fibers by shining
light into one end and looking at the other end is not recommended. To verify continuity of a fiber
optic cable, use an optical light source and power meter. (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)
Safety notices xiii

CAUTION:
Regarding IBM provided VENDOR LIFT TOOL:
vOperation of LIFT TOOL by authorized personnel only.
vLIFT TOOL intended for use to assist, lift, install, remove units (load) up into rack elevations. It is
not to be used loaded transporting over major ramps nor as a replacement for such designated tools
like pallet jacks, walkies, fork trucks and such related relocation practices. When this is not
practicable, specially trained persons or services must be used (for instance, riggers or movers).
vRead and completely understand the contents of LIFT TOOL operator's manual before using.
Failure to read, understand, obey safety rules, and follow instructions may result in property
damage and/or personal injury. If there are questions, contact the vendor's service and support.
Local paper manual must remain with machine in provided storage sleeve area. Latest revision
manual available on vendor's web site.
vTest verify stabilizer brake function before each use. Do not over-force moving or rolling the LIFT
TOOL with stabilizer brake engaged.
vDo not move LIFT TOOL while platform is raised, except for minor positioning.
vDo not exceed rated load capacity. See LOAD CAPACITY CHART regarding maximum loads at
center versus edge of extended platform.
vOnly raise load if properly centered on platform. Do not place more than 200 lb (91 kg) on edge of
sliding platform shelf also considering the load's center of mass/gravity (CoG).
vDo not corner load the platform tilt riser accessory option. Secure platform riser tilt option to main
shelf in all four (4x) locations with provided hardware only, prior to use. Load objects are designed
to slide on/off smooth platforms without appreciable force, so take care not to push or lean. Keep
riser tilt option flat at all times except for final minor adjustment when needed.
vDo not stand under overhanging load.
vDo not use on uneven surface, incline or decline (major ramps).
vDo not stack loads.
vDo not operate while under the influence of drugs or alcohol.
vDo not support ladder against LIFT TOOL.
vTipping hazard. Do not push or lean against load with raised platform.
vDo not use as a personnel lifting platform or step. No riders.
vDo not stand on any part of lift. Not a step.
vDo not climb on mast.
vDo not operate a damaged or malfunctioning LIFT TOOL machine.
vCrush and pinch point hazard below platform. Only lower load in areas clear of personnel and
obstructions. Keep hands and feet clear during operation.
vNo Forks. Never lift or move bare LIFT TOOL MACHINE with pallet truck, jack or fork lift.
vMast extends higher than platform. Be aware of ceiling height, cable trays, sprinklers, lights, and
other overhead objects.
vDo not leave LIFT TOOL machine unattended with an elevated load.
vWatch and keep hands, fingers, and clothing clear when equipment is in motion.
vTurn Winch with hand power only. If winch handle cannot be cranked easily with one hand, it is
probably over-loaded. Do not continue to turn winch past top or bottom of platform travel.
Excessive unwinding will detach handle and damage cable. Always hold handle when lowering,
unwinding. Always assure self that winch is holding load before releasing winch handle.
vA winch accident could cause serious injury. Not for moving humans. Make certain clicking sound
is heard as the equipment is being raised. Be sure winch is locked in position before releasing
handle. Read instruction page before operating this winch. Never allow winch to unwind freely.
Freewheeling will cause uneven cable wrapping around winch drum, damage cable, and may cause
serious injury. (C048)
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:
xiv System backplane

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.
The dc-powered system is intended to be installed in a common bonding network (CBN) as described in
GR-1089-CORE.
Safety notices xv

xvi System backplane

System backplane for the 8247-42L, 8286-41A, or 8286-42A
Learn how to 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.
Removing and replacing the base function system backplane in the
8247-42L, 8286-41A, or 8286-42A
Learn how to remove and replace a base function system backplane.
If your system is managed by the Hardware Management Console (HMC), use the HMC to repair a part
in the system. For instructions, see “Repairing a part by using the HMC” on page 161.
If your system is not managed by an HMC, complete the following steps to remove and replace a base
function system backplane:
Note: Replacing this field-replaceable unit (FRU) must be completed by an authorized service
representative.
1. “Preparing the system to remove and replace the base function system backplane” on page 2
2. “Removing the base function system backplane from the 8247-42L, 8286-41A, or 8286-42A” on page 6
3. “Replacing the base function system backplane in the 8247-42L, 8286-41A, or 8286-42A” on page 21
4. “Preparing the system for operation after removing and replacing the base function system
backplane” on page 51
To complete these procedures, you need to print the following topics. If the IBM Power Systems™
Hardware Knowledge 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.
vControl Panel (http://www.ibm.com/support/knowledgecenter/POWER8/p8hbc/
p8hbc_82x_84x_kickoff.htm)
vDisk drives or solid-state drives (http://www.ibm.com/support/knowledgecenter/POWER8/p8hal/
p8hal_82x_84x_rnr_poweroff_kickoff.htm)
vMedia devices (http://www.ibm.com/support/knowledgecenter/POWER8/p8hap/
p8hap_8xx_removingslmedia.htm)
vFans and fan cage (http://www.ibm.com/support/knowledgecenter/POWER8/p8haq/
p8haq_82x_84x_kickoff.htm)
vDisk drive backplane (http://www.ibm.com/support/knowledgecenter/POWER8/p8eg5/
p8eg5_82x_84x_lf_kickoff.htm)
vFront SAS cable (http://www.ibm.com/support/knowledgecenter/POWER8/p8eg7/
p8eg7_82x_84x_kickoff.htm)
vFront USB cable (http://www.ibm.com/support/knowledgecenter/POWER8/p8ege/
p8ege_82x_84x_kickoff.htm)
vPCIe3 x8 SAS RAID internal adapter 6 Gb (http://www.ibm.com/support/knowledgecenter/
POWER8/p8egm/p8egm_82x_84x_rr_kickoff.htm)
vMemory modules (http://www.ibm.com/support/knowledgecenter/POWER8/p8han/
p8han_82x_84x_rr_kickoff.htm)
vSystem processor modules (http://www.ibm.com/support/knowledgecenter/POWER8/p8ede/
p8ede_82x_84x_kickoff.htm)
© Copyright IBM Corp. 2014, 2017 1

vTime-of-day battery (http://www.ibm.com/support/knowledgecenter/POWER8/p8eg4/
p8eg4_82x_84x_rnr_kickoff.htm)
vVital Product Data card (http://www.ibm.com/support/knowledgecenter/POWER8/p8edf/
p8edf_82x_84x_kickoff.htm)
vPower supplies (http://www.ibm.com/support/knowledgecenter/POWER8/p8hbd/
p8hbd_82x_84x_powersupplyoff.htm)
vRear USB cable (http://www.ibm.com/support/knowledgecenter/POWER8/p8egf/
p8egf_82x_84x_rr_kickoff.htm)
vPCI adapters (http://www.ibm.com/support/knowledgecenter/POWER8/p8hak/
p8hak_82x_84x_rnr_poweroff_kickoff.htm)
vService processor serial port and USB ports card (http://www.ibm.com/support/knowledgecenter/
POWER8/p8egl/p8egl_82x_84x_rnr_kickoff.htm)
Preparing the system to remove and replace the base function system
backplane
Use this procedure to prepare the system to remove and replace the base function system backplane.
Note: It is recommended that a spare TIM and heat sink, (part number 00E8868), be on hand when
replacing the system processor module into the replacement system backplane.
Before 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.
To remove the base function system backplane, complete the following steps:
1. Identify the part and the system that you will be working on. For instructions, see “Identifying a
part” on page 114.
2. Record the bootlist settings by using the Systems Management Services (SMS).
3. Stop the system or logical partition. For instructions, see “Stopping a system or logical partition” on
page 125.
4. For a rack-mounted system, place the system into the service position. For instructions, see “Placing
the rack-mounted system into the service position” on page 148.
5. Attach the electrostatic discharge (ESD) wrist strap. The ESD wrist strap must be connected to an
unpainted metal surface until the service procedure is completed, and if applicable, until the service
access cover is replaced.
Attention:
vAttach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to
an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging
your hardware.
vWhen you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock when
using or working on electrical equipment.
vIf you do not have an ESD wrist strap, just 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. If at any point in this service process you move away from the system, it
is important to once again discharge yourself by touching an unpainted metal surface for at least 5
seconds before you continue with the service process.
6. Remove the service access cover. For instructions, see “Removing the service access cover from a
5148-21L, 5148-22L, 8247-21L, 8247-22L, 8247-42L, 8284-21A, 8284-22A, 8286-41A, or 8286-42A
system” on page 140.
7. Look for the amber LED (D) of the system backplane. See Figure 1 on page 3.
2System backplane