IBM Power Systems 9009-41A, Power Systems 9009-42A, Power Systems 9223-42H User Manual
Power Systems
System backplane for the 9009-41A,
9009-42A, or 9223-42H
IBM
Note
Before using this information and the product it supports, read the information in “Safety notices” on
page v, “Notices” on page 123, 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 POWER9™ processor and to all associated models.
©
Copyright International Business Machines Corporation 2018, 2019.
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 system backplane......................................................................................... 1
Preparing the system..............................................................................................................................1
Removing the system backplane.........................................................................................................17
Replacing the system backplane......................................................................................................... 68
Preparing the system for operation...................................................................................................110
Notices..............................................................................................................123
Accessibility features for IBM Power Systems servers..........................................................................124
Privacy policy considerations .................................................................................................................125
Trademarks..............................................................................................................................................125
Electronic emission notices.....................................................................................................................125
Class A Notices...................................................................................................................................126
Class B Notices...................................................................................................................................129
Terms and conditions.............................................................................................................................. 131
iii
iv
Safety notices
Safety notices may be printed throughout this guide:
• DANGER notices call attention to a situation that is potentially lethal or extremely hazardous to people.
• CAUTION notices call attention to a situation that is potentially hazardous to people because of some
existing condition.
• Attention 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 rst 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 ber-optic based and that utilize lasers or LEDs.
Laser compliance
IBM servers may be installed inside or outside of an IT equipment rack.
DANGER:
Electrical voltage and current from power, telephone, and communication cables are hazardous.
To avoid a shock hazard:
• If 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.
• Do not open or service any power supply assembly.
• Do not connect or disconnect any cables or perform installation, maintenance, or reconguration
of this product during an electrical storm.
• The 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
• When connecting power to the product ensure all power cables are properly connected.
When working on or around the system, observe the following precautions:
source to the PDP.
– 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.
©
Copyright IBM Corp. 2018, 2019 v
– 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.
• Connect any equipment that will be attached to this product to properly wired outlets.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of re, water, or structural damage.
• Do not attempt to switch on power to the machine until all possible unsafe conditions are
corrected.
• Assume that an electrical safety hazard is present. Perform all continuity, grounding, and power
checks specied during the subsystem installation procedures to ensure that the machine meets
safety requirements.
• Do not continue with the inspection if any unsafe conditions are present.
• Before you open the device covers, unless instructed otherwise in the installation and
conguration 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:
• Connect 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:
• Heavy equipment–personal injury or equipment damage might result if mishandled.
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet unless the earthquake option is to be
installed.
• To 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.
Observe the following precautions when working on or around your IT rack system:
vi Power Systems: System backplane
• Rack-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).
• Each 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.
• Connect 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.
• An 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
1 of 2)
(R001 part 2 of 2):
CAUTION:
• Do 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.
• Do 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.
• Consideration 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.
• (For sliding drawers.) Do not pull out or install any drawer or feature if the rack stabilizer
brackets are not attached to the rack or if the rack is not bolted to the floor. 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.
• (For xed drawers.) This drawer is a xed drawer and must not be moved for servicing unless
specied 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
part 2 of 2)
CAUTION:
stability during relocation. Follow these general guidelines whenever you relocate a populated
rack cabinet within a room or building.
• Reduce 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 conguration of the rack cabinet as you
received it. If this conguration is not known, you must observe the following precautions:
Removing components from the upper positions in the rack cabinet improves rack
Safety notices vii
– 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 conguration specically allowed it.
• If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet
from the suite.
• If the rack cabinet you are relocating was supplied with removable outriggers they must be
reinstalled before the cabinet is relocated.
• Inspect the route that you plan to take to eliminate potential hazards.
• Verify 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.
• Verify that all door openings are at least 760 x 230 mm (30 x 80 in.).
• Ensure that all devices, shelves, drawers, doors, and cables are secure.
• Ensure that the four leveling pads are raised to their highest position.
• Ensure that there is no stabilizer bracket installed on the rack cabinet during movement.
• Do not use a ramp inclined at more than 10 degrees.
• When the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet or in an earthquake environment bolt the rack to
the floor.
– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the
lowest position to the highest position.
• If a long-distance relocation is required, restore the rack cabinet to the conguration 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.
(L001)
(L002)
(R002)
DANGER:
this label attached. Do not open any cover or barrier that contains this label. (L001)
Hazardous voltage, current, or energy levels are present inside any component that has
viii
Power Systems: System backplane
(L003)
or
or
DANGER: Rack-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). (L002)
or
or
Safety notices
ix
(L007)
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)
CAUTION:
(L008)
CAUTION:
All lasers are certied 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 certied to be in compliance with IEC 60825 as a class 1 laser
product. Consult the label on each part for laser certication numbers and approval information.
CAUTION:
ROM drive, DVD-RAM drive, or laser module, which are Class 1 laser products. Note the following
information:
• Do 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.
• Use of the controls or adjustments or performance of procedures other than those specied
herein might result in hazardous radiation exposure.
A hot surface nearby. (L007)
Hazardous moving parts nearby. (L008)
This product might contain one or more of the following devices: CD-ROM drive, DVD-
(C026)
x Power Systems: System backplane
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 ber cable or open receptacle. Although shining light into one end and
looking into the other end of a disconnected optical ber to verify the continuity of optic bers may
not injure the eye, this procedure is potentially dangerous. Therefore, verifying the continuity of
optical bers by shining light into one end and looking at the other end is not recommended. To
verify continuity of a ber 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)
(C030)
CAUTION: The battery contains lithium. To avoid possible explosion, do not burn or charge the
battery.
Do Not:
• Throw or immerse into water
• Heat to more than 100 degrees C (212 degrees F)
• 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)
CAUTION: Regarding IBM provided VENDOR LIFT TOOL:
• Operation of LIFT TOOL by authorized personnel only.
• LIFT 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).
• Read 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.
• Test verify stabilizer brake function before each use. Do not over-force moving or rolling the LIFT
TOOL with stabilizer brake engaged.
• Do not raise, lower or slide platform load shelf unless stabilizer (brake pedal jack) is fully
engaged. Keep stabilizer brake engaged when not in use or motion.
• Do not move LIFT TOOL while platform is raised, except for minor positioning.
• Do not exceed rated load capacity. See LOAD CAPACITY CHART regarding maximum loads at
center versus edge of extended platform.
• Only 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).
• Do not corner load the platforms, tilt riser, angled unit install wedge or other such accessory
options. Secure such platforms -- riser tilt, wedge, etc options to main lift shelf or forks in all four
(4x or all other provisioned mounting) locations with provided hardware only, prior to use. Load
objects are designed to slide on/off smooth platforms without appreciable force, so take care
Safety notices
xi
not to push or lean. Keep riser tilt [adjustable angling platform] option flat at all times except for
nal minor angle adjustment when needed.
• Do not stand under overhanging load.
• Do not use on uneven surface, incline or decline (major ramps).
• Do not stack loads.
• Do not operate while under the influence of drugs or alcohol.
• Do not support ladder against LIFT TOOL (unless the specic allowance is provided for one
following qualied procedures for working at elevations with this TOOL).
• Tipping hazard. Do not push or lean against load with raised platform.
• Do not use as a personnel lifting platform or step. No riders.
• Do not stand on any part of lift. Not a step.
• Do not climb on mast.
• Do not operate a damaged or malfunctioning LIFT TOOL machine.
• Crush and pinch point hazard below platform. Only lower load in areas clear of personnel and
obstructions. Keep hands and feet clear during operation.
• No Forks. Never lift or move bare LIFT TOOL MACHINE with pallet truck, jack or fork lift.
• Mast extends higher than platform. Be aware of ceiling height, cable trays, sprinklers, lights, and
other overhead objects.
• Do not leave LIFT TOOL machine unattended with an elevated load.
• Watch and keep hands, ngers, and clothing clear when equipment is in motion.
• Turn 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.
• A 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.
• This TOOL must be maintained correctly for IBM Service personnel to use it. IBM shall inspect
condition and verify maintenance history before operation. Personnel reserve the right not to use
TOOL if inadequate. (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:
The equipment is suitable for installation in the following:
• Network telecommunications facilities
• Locations 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 sufcient 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).
xii
Power Systems: System backplane
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 xiii
xiv Power Systems: System backplane
Removing and replacing the system backplane in the
9009-41A, 9009-42A, or 9223-42H
Find information about removing and replacing the system backplane in the 9009-41A, 9009-42A, or
9223-42H.
Removing and replacing the system backplane in the 9009-41A, 9009-42A,
or 9223-42H
Find information about removing and replacing the system backplane in the 9009-41A, 9009-42A, or
9223-42H.
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 (www.ibm.com/support/
knowledgecenter/POWER9/p9haj/p9haj_hmc_repair.htm).
If you do not have an HMC, use the following procedures to remove and replace the system backplane.
Note: Only an authorized service representative must remove or replace this part.
Preparing the system to remove and replace the system backplane
To prepare the system to remove and replace the system backplane, complete the steps in this
procedure.
About this task
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.
Procedure
1. Identify the part and the system that you are working on. For instructions, see Identifying a
part (www.ibm.com/support/knowledgecenter/POWER9/p9haj/sal.htm).
Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the
system matches the serial number to be serviced.
2. Stop the system. For instructions, see Stopping a system (www.ibm.com/support/knowledgecenter/
POWER9/p9haj/crustopsys.htm).
3. Access the Advanced System Management Interface (ASMI).
For instructions, see Accessing the ASMI without an HMC (www.ibm.com/support/knowledgecenter/
POWER9/p9hby/connect_asmi.htm).
4. On the ASMI welcome panel, locate Service Processor: Primary (Location: UXXXX.YYY.ZZZZZZZ)
where XXXX.YYY represents the Feature Code/Sequence Number and ZZZZZZZ represents the
Enclosure serial number. Record the values for XXXX.YYY and ZZZZZZZ.
5. 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.
6. 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:
• Attach 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.
©
Copyright IBM Corp. 2018, 2019 1
• When 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.
• If 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 again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
7. For rack-mounted systems, continue to the next step.
For stand-alone systems, the recommended service position for working with the system backplane
is to lay the system on its side. You do not need to lift the system. For instructions to place a standalone system in the service position, continue to step “17” on page 11.
CAUTION: This system requires two people to tip the system onto its side.
8. Open the cable management arm by completing the following steps:
a) Release the mounting bracket from the cable management arm assembly by pressing the
indentation (A) on the inner cable management arm tab.
The cable management arm releases from the outer mounting bracket in the direction shown.
Figure 1. Releasing the cable management arm
b) Swing the cable management arm away from the system.
2
Power Systems: System backplane
In the image, the inner cable management arm tab is shown on the left side as you are facing the
system from the rear. However, the cable management arm can also be installed so that the inner
cable management arm tab is on the right side of the system.
CAUTION: To avoid causing damage to the arm, open the cable management arm just long
enough to complete these repairs.
9. Label and disconnect the power cords from the system unit.
See Figure 2 on page 3.
Notes:
• This system might be equipped with two or more power supplies. If the removing and replacing
procedures require the system power to be turned off, ensure that all the power sources to the
system are disconnected.
• The power cord (B) is fastened to the system with hook-and-loop fastener (A). If you are placing
the system in a service position after you disconnect the power cords, ensure that you unstrap the
fastener.
Figure 2. Removing the power cords
(L003)
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
3
or
or
or
or
4
Power Systems: System backplane
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)
10. Unseat each of the power supplies by pushing on the locking-tab and pulling the power supply out
enough so that the connector is disengaged.
11. Label, disconnect, and set aside all remaining rear cables that connect to the system.
12. Close the cable management arm by completing the following steps:
a) Swing the cable management arm towards the server.
b) Insert the inner cable management arm tab (A) into the outer mounting bracket (B) until it clicks
into place as shown. The inner mounting bracket (C) is not used on the left side.
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H 5
Figure 3. Closing the cable management arm
13. Disconnect the cable management arm from the system by pressing the inner cable management
arm tab (A) while lightly squeezing the inner and outer cable management arms together. Then,
secure the inner cable management arm to the outer cable management arm with a hook and loop
fastener. You should secure the inner and outer arms at the narrowest spot (G) between the basket
and the side of the arm that you just disconnected. See Figure 4 on page 7.
6
Power Systems: System backplane
Figure 4. Cable management arm parts
14. Hold the indentations (A) on the front cover and pull it away from the system. See Figure 5 on page
8.
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
7
Figure 5. Removing the front cover
15. Open the side latches (A) and pull the latches to slide the system unit fully into the service position,
until the slides click and hold the system unit securely. Ensure that the screws inside the latches are
not secured to the rack.
See Figure 6 on page 9.
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.
8
Power Systems: System backplane
Figure 6. Releasing the side latches
16. Remove the service access cover.
For a rack-mounted system, complete the following steps. Refer to Figure 7 on page 10.
Attention:
minutes when the system power is turned on might damage the system components.
a. Release the service cover latch by pushing the release latch (A) in the direction shown.
b. Slide the cover (B) off the system unit. When the front of the service access cover clears the upper
frame ledge, lift the cover up and off the system unit.
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
Operating the system without the service access cover on for more than 10
9
Figure 7. Removing the service access cover from a rack-mounted system
For a stand-alone system, complete the following steps. Refer to Figure 8 on page 11.
Attention:
minutes when the system power is turned on might damage the system components.
a. Release the latch by pushing the release latch (A) in the direction shown.
b. Slide the cover (B) off the system unit. When the front of the service access cover has cleared the
upper frame ledge, lift the cover up and off the system unit.
10
Power Systems: System backplane
Operating the system without the service access cover on for more than 10
Figure 8. Removing the service access cover
17. Complete the following steps to place a stand-alone system into the service position:
a) Label and remove all cables that connect to the system.
b) Remove the power supplies from the system to lighten the system.
Refer to Figure 9 on page 12.
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
11
Figure 9. Removing the power supplies
1) Label the power cord, and then unstrap the hook-and-loop fastener (D) to release the power
cord (A) from the power supply handle. Retain the hook-and-loop fastener for future use.
2) Pull the power cord (A) out of the power supply (C) in the direction shown. Pull the power cord
connector; do not pull the cord itself.
3) To unseat the power supply from its position in the system, push the locking-tab (B) in the
direction shown.
4) Using the handle (E), pull the power supply (C) away from the system.
5) Repeat steps “17.b.i” on page 12 - “17.b.iv” on page 12 for each power supply.
c) Remove the side cover.
Refer to Figure 10 on page 13.
12
Power Systems: System backplane
Figure 10. Removing the service access cover
1) Release the latch by pushing the release latch (A) in the direction shown.
2) Slide the cover (B) off the system unit. When the front of the service access cover has cleared
the upper frame ledge, lift the cover up and off the system unit.
d) Carefully tilt the stand-alone system from its vertical position to lay it in a horizontal position.
Position the system with the open service area up, and with a 3 cm (1.5") support (A) along its top
edge, as shown in Figure 11 on page 14.
The support (A) is used to prevent the plastic handle from being damaged.
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
13
Figure 11. Tilting the stand-alone system to a horizontal position
18. Press and hold the push-button (A) on the trusted platform module card to activate the identify LED
for the faulty part as shown in the following gures.
Verify that the LED (B) is lit, which indicates that sufcient power exists for the identify LED. If the
LED (B) is not lit, use the location code to nd the physical location by using the service label.
14
Power Systems: System backplane
Figure 12. Activating the identify LED for a rack mounted system
Removing and replacing the system backplane in the 9009-41A, 9009-42A, or 9223-42H
15
Figure 13. Activating the identify LED for a stand-alone system
19. Look for the amber LED of the system backplane. See Figure 14 on page 17.
16
Power Systems: System backplane
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