IBM 9117-MMB, 9179-MHB, 9117-MMC, 9179-MHC User Manual

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Power Systems

Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

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Power Systems

Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC



Note

Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on page 91, 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.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents

Safety notices .................................v

Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC ........1

Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off ....1

Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on ....3

Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off ....4

Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on ....6

Power supply LEDs .................................8

Power supplies, fans, and input power distribution assemblies in a 5802 or 5877 expansion unit .......9

Removing a power supply or fan from a 5802 or 5877 expansion unit with the power turned on ......9

Removing a power supply or fan from a 5802 or 5877 expansion unit with the power turned off ......13

Replacing a power supply or fan in a 5802 or 5877 expansion unit with the power turned on .......16

Replacing a power supply or fan in a 5802 or 5877 expansion unit with the power turned off .......21

Removing an input power distribution assembly from a 5802 or 5877 expansion unit with the power turned off 25 Replacing an input power distribution assembly in a 5802 or 5877 expansion unit with the power turned off. . 28 Replacing an input power distribution assembly in a 5802 or 5877 expansion unit with the power turned off. . 30

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 ................38

Identifying a failing part in a Linux system or logical partition ................38

Locating a failing part in a Linux system or logical partition ................38

Finding the location code of a failing part in a Linux system or logical partition .........38

Activating the indicator light for the failing part ....................38

Deactivating the failing-part indicator light ......................38

Locating a failing part in a Virtual I/O Server system or logical partition.............39

Identifying a part by using the Virtual I/O Server ...................39

Starting the system or logical partition .........................39

Starting a system that is not managed by an HMC or an SDMC................39

Starting a system or logical partition by using the Hardware Management Console .........41

Starting a system or virtual server with the Systems Director Management Console .........41

Stopping a system or logical partition .........................41

Stopping a system that is not managed by an HMC or an SDMC ...............42

Stopping a system by using the Hardware Management Console ...............43

Stopping a system with the Systems Director Management Console ..............43

Placing the 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system into the service or operating position ....44

Placing a rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system into the service position . . . 44 Placing the rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system into the operating position . . 45

Removing and replacing covers for the 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C ..........47

Removing the front cover on a rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system ....47

Removing the front cover on a stand-alone 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system .....48

Installing the front cover on a rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system .....49

Installing the front cover and front door on a stand-alone 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system 50 Removing the service access cover on a rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system. . 51 Removing the service access cover on a stand-alone 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system . . 52 Installing the service access cover on a rack-mounted 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system . . 54 Installing the service access cover on a stand-alone 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system . . . 54

Disconnecting the power cords from the 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system .......56

Connecting the power cords to the 8202-E4B, 8202-E4C, 8205-E6B, or 8205-E6C system .........58

Installing a feature by using the Hardware Management Console ................58

Installing a part by using the Systems Director Management Console ...............59

Verifying the installed part .............................59

Verifying an installed part by using stand-alone diagnostics .................59

Verifying the installed part by using Hardware Management Console ..............60

Activating and deactivating LEDs by using the HMC ..................61

Viewing serviceable events by using the HMC.....................62

Verifying the installed part by using Systems Director Management Console ...........63

Activating and deactivating LEDs by using the SDMC ..................63

Viewing serviceable events by using the IBM Systems Director Management Console .......64

Verifying an installed feature or replaced part on a system or logical partition by using Virtual I/O Server

tools....................................65

Verifying a repair ................................67

Verifying the repair in AIX ............................68

Verifying a repair using an IBM i system or logical partition .................71

Verifying the repair in Linux ...........................73

Verifying the repair from the management console ....................73

Closing a service call ...............................75

Closing a service call using AIX or Linux .......................79

Closing a service call using Integrated Virtualization Manager ................83

Activating and deactivating LEDs ...........................87

Deactivating a system attention LED or partition LED using the management console ........88

Activating or deactivating an identify LED using the management console ............88

Deactivating a system attention LED or logical partition LED using the Advanced System Management

Interface ..................................89

Activating or deactivating an identify LED using the Advanced System Management Interface .....90

Notices ...................................91

Trademarks ...................................92

Electronic emission notices ..............................92

Class A Notices .................................92

Class B Notices .................................96

Terms and conditions ................................99

iv Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Safety notices

Safety notices may be printed throughout this guide: v DANGER notices call attention to a situation that is potentially lethal or extremely hazardous to

people.

v CAUTION notices call attention to a situation that is potentially hazardous to people because of some

existing condition.

v 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, a safety information booklet is included in the publications package shipped with the product. The booklet 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 in the booklet. You should also refer to the booklet any time you do not clearly understand any safety information in the U.S. English publications.

German safety information

Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne§2der 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: v Connect power to this unit only with the IBM provided power cord. Do not use the IBM

provided power cord for any other product.

v Do not open or service any power supply assembly. v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

v The product might be equipped with multiple power cords. To remove all hazardous voltages,

disconnect all power cords.

v 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.

v Connect any equipment that will be attached to this product to properly wired outlets. v When possible, use one hand only to connect or disconnect signal cables. v Never turn on any equipment when there is evidence of fire, water, or structural damage. v Disconnect the attached power cords, telecommunications systems, networks, and modems before

you open the device covers, unless instructed otherwise in the installation and configuration procedures.

v 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. 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: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Observe the following precautions when working on or around your IT rack system:

v Heavy equipment–personal injury or equipment damage might result if mishandled.

v Always lower the leveling pads on the rack cabinet.

v Always install stabilizer brackets on the rack cabinet.

v 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.

v Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top

of rack-mounted devices.

v Each 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.

v 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.

v 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.

CAUTION

v 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.

v 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.

v 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.

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:

v 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 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.

v If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from

the suite.

v Inspect the route that you plan to take to eliminate potential hazards.

v 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.

v Verify that all door openings are at least 760 x 230 mm (30 x 80 in.).

v Ensure that all devices, shelves, drawers, doors, and cables are secure.

v Ensure that the four leveling pads are raised to their highest position.

v Ensure that there is no stabilizer bracket installed on the rack cabinet during movement.

v Do not use a ramp inclined at more than 10 degrees.

v 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.

– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest

position to the highest position.

v If 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: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

(L003)

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:

v 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.

v Use 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)

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:

v Network telecommunications facilities v 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 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.

x Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Learn about removing and replacing a power supply in a server. Learn about removing and replacing a power supply, fan, or input power distribution assembly in a 5802 or a 5877 expansion unit.

Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off

If your system power is already turned off, or if you want to perform another service task with power turned off, learn how to remove a power supply with the system power turned off.

If your system is managed by the Hardware Management Console (HMC), use the HMC to remove a power supply. For instructions, see Removing a part by using the Hardware Management Console.

If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to remove a power supply in the server. For instructions, see Removing a part by using the Systems Director Management Console.

If your system is not managed by an HMC or SDMC, complete the following steps to remove the power supply from a system while the system power is turned off:

1. Perform the prerequisite tasks, as described in Before you begin.

2. Identify the failing part, as described in Identifying a failing part.

3. If the system is running, stop the system as described in Stopping the system or logical partition.

4. Open the rack door at the rear of the system.

5. Disconnect the power source from the system by unplugging the system, as described in

Disconnecting the power cords.

Note: This system is equipped with a second power supply. Before continuing with this procedure, disconnect all power sources to the system.

(L003)

6. Lift the tab (B) toward the power cord retainer (C) to release the power supply. Pull the power supply away from the system, as shown in Figure 1.

Figure 1. Removing the power supply

If you want to replace the power supply you removed, see “Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off” on page 4.

2 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on

Learn how to remove a power supply with the system power turned on if you want to replace a failing power supply, or as a part of another service action.

Attention: Two power supplies must be present in the system to power on the system unit. If one power supply fails, or you have a system failure that does not stop the fans, the system continues to operate. You can remove and replace the power supply with the system power turned on if it is done in less than 5 minutes. After 5 minutes, the system turns off the power to prevent the system from overheating. If the system power is turned off, go to “Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off” on page 1.

If your system is managed by the Hardware Management Console (HMC), use the HMC to remove a power supply. For instructions, see Removing a part by using the Hardware Management Console.

If your system is not managed by an HMC or SDMC, complete the following steps to remove a power supply from a system while the system power is turned on:

1. Perform the prerequisite tasks, as described in Before you begin.

2. On a rack-mounted system unit, open the rear rack door.

3. Identify the failing part, as described in Identifying a failing part.

4. Disconnect the power source from the system by unplugging the system, as described in

Disconnecting the power cords.

5. Attach the wrist strap.

Attention:

v Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic

discharge (ESD) from damaging your hardware.

v 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.

v If you do not have a 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.

6. Lift the tab (B) toward the power cord retainer (C) to release the power supply. Pull the power supply away from the system, as shown in Figure 2 on page 4.

Power supplies 3

Figure 2. Removing the power supply

Note: When you remove a power supply with the system power turned on, an error is logged. No action is required for this error.

If you want to replace the power supply you removed, see “Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on” on page 6.

Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off

Learn how to replace a power supply with the system power turned off.

If your system is managed by the Hardware Management Console (HMC), use the HMC to replace a power supply. For instructions, see Exchanging a part by using the Hardware Management Console.

If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to replace a power supply in the server. For instructions, see Replacing a part by using the Systems Director Management Console.

If your system is not managed by an HMC or SDMC, complete the following steps to replace a power supply in a system while the system power is turned off:

1. To remove the power supply, see “Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off” on page 1.

2. Align the power supply with the bay and slide the new power supply into the system until it locks in place.

3. Connect the power cable A to the power supply.

4 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Note: This system is equipped with a second power supply. Before continuing with this procedure, connect all power sources to the system.

Figure 3. Replacing a power supply

4. Start the system, as described in Starting the system or logical partition.

5. Note the state of the light-emitting diodes (LEDs) on the power supply. For more information, see

“Power supply LEDs” on page 8. If the LEDs indicate that the power supply is operating normally, that is, the AC input LED and the DC output LED are on solid (not flashing) and the fault/identify LED is flashing or off, continue to the next step. If not, remove the power supply from the system and repeat the procedure starting with step 2 on page 4. If, after repeating the procedure, the power supply is not operating normally, contact your service provider.

Figure 4. Power supply LEDs

Power supplies 5

6. Close the rack door at the rear of the system.

Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on

Learn how to replace a power supply with the system power turned on.

Attention: Two power supplies must be present in the system to power on the system unit. If one power supply fails, or you have a system failure that does not stop the fans, the system continues to operate. You can remove and replace the power supply with the system power turned on if it is done in less than 5 minutes. After 5 minutes, the system turns off the power to prevent the system from overheating. If the system power is turned off, go to “Replacing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned off” on page 4.

If your system is managed by the Hardware Management Console (HMC), use the HMC to replace a power supply. For instructions, see Exchanging a part by using the Hardware Management Console.

If your system is not managed by an HMC or SDMC, complete the following steps to replace a power supply in a system while the system power is turned on:

1. To remove the power supply, see “Removing the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC power supply with the power turned on” on page 3.

2. Perform the prerequisite tasks, as described in Before you begin.

3. Attach the wrist strap.

6 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Attention:

v Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic

discharge (ESD) from damaging your hardware.

v 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.

v If you do not have a 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.

4. Align the power supply with the power supply bay and slide the power supply into the system until it locks into place.

5. Attach the power cable (A), as shown in Figure 5.

Figure 5. Replacing the power supply

6. Note the state of the light-emitting diodes (LEDs) on the power supply. For more information, see “Power supply LEDs” on page 8. If the LEDs indicate that the power supply is operating normally, that is, the AC input LED and the DC output LED are on solid (not flashing) and the fault/identify LED is flashing or off, continue to the next step. If not, remove the power supply from the system and repeat the procedure starting with step 4. If, after repeating the procedure, the power supply is not operating normally, contact your service provider.

Power supplies 7

Figure 6. Power supply LEDs

7. Close the rack door at the rear of the system.

Power supply LEDs

The various states of the power supply light-emitting diodes (LEDs) can be used to identify or verify a power supply that you are servicing.

The power supply has three LEDs that indicate the power supply status:

v an ac power LED (green, at the right of the 3 LEDs) v a dc power LED (green, in the middle of the 3 LEDs) v an error and identify function LED (amber, at the left of the 3 LEDs)

To locate the power supply LEDs, look on the top or at the back of an exposed power supply. You must remove covers or panels to expose the power supply. Follow the instructions to remove covers or panels for the power supply you are working with, and then return here.

To activate the identify function, see Identifying a failing part.

Descriptions for the states of the power supply LEDs follow: v If both the ac power and dc power (green) LEDs are on solid (not flashing) and the error and identify

function (amber) LED is off, the power supply is operating correctly.

v If the ac power LED is on, the dc power LED is flashing, and the error and identify function (amber)

LED is off, then the system is turned off, but the power supply is still connected to the power source.

v If the error and identify function (amber) LED is flashing, the power supply identify function has been

selected.

v If the error and identify function (amber) LED is flashing, the ac power LED is on solid and the dc

power LED is off, the power supply is not operating correctly and has been identified for replacement.

8 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Power supplies, fans, and input power distribution assemblies in a 5802 or 5877 expansion unit

Learn about removing and replacing a power supply, fan, or input power distribution assembly to replace a failing part or as part of another service action in a 5802 or 5877 expansion unit.

The power supply is located in an Offline Converter Assembly (OCA) in the 5802 expansion unit. The expansion unit has two OCAs, with each OCA consisting of a power supply and two fans. To remove or replace a failing fan, you must remove the affected power supply.

Removing a power supply or fan from a 5802 or 5877 expansion unit with the power turned on

Learn how to remove a power supply or power-supply fan from a 5802 or 5877 expansion unit if you need to replace a failing part with the power turned on.

If your system is managed by the Hardware Management Console (HMC), use the HMC to remove a power supply. For instructions, see Removing a part by using the Hardware Management Console.

Determine if you are able to perform this procedure concurrently Attention

Note: Two power supplies must be present in the expansion unit. If one power supply fails, the

expansion unit continues to operate. If you are performing this procedure concurrently (with the power turned on), there is a time limit. From the moment the power supply is removed, the exchange of the power supply must be completed in less than 5 minutes. If you cannot replace the power supply in less than 5 minutes, the I/O drawer automatically shuts down.

Read the following steps, but do not perform them yet. Then decide if you are ready (and able) to complete this repair within 5 minutes.

1. Have the replacement power supply or fan ready.

2. Remove the power supply from the expansion unit.

3. Install the fan or fans into the power supply as required for the service procedure being performed.

4. Install the power supply into the enclosure.

Note: If you are replacing a midplane or a power supply, ensure that you only replace one of these parts at a time. If a midplane and both power supplies are replaced at the same time, the enclosure vital product data (VPD), which is present only in these entities, is lost. The enclosure VPD is the identity of the 5802 or 5877 enclosure.

If your system is not managed by an HMC or an SDMC, complete the following steps to remove a power supply or fan from an expansion unit or system while the system power is turned on:

1. Perform the prerequisite tasks, as described in Before you begin.

2. Open the front rack door.

3. Identify the failing part, as described in Identifying a failing part.

4. At the front of the expansion unit, identify the power supply that must be replaced. To identify the

power supply, observe the state of the amber field-replaceable unit (FRU) fault and identify light-emitting diode (LED) (A) as shown in Figure 7 on page 10. A lit (flashing or on solid) LED indicates the failing power supply.

Power supplies 9

Figure 7. FRU fault and identify LED

5. For the power supply that you want to remove, slide the cable retention bracket to the open position

(A), and then disconnect the power cable (B) as shown in Figure 8. By moving the bracket to the open position, you turn the power supply off.

Figure 8. Disconnecting the power cable from the front of an expansion unit

6. Attach the wrist strap.

10 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Attention:

v Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic

discharge (ESD) from damaging your hardware.

v 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.

v If you do not have a 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.

7. Rotate the power-supply locking handle (A) to the open position as shown in Figure 9. Pull the power supply out of the expansion unit.

Figure 9. Removing a power supply

8. Optional: If you want to remove a failing power-supply fan, complete the following steps:

Note: If a fan fails, the amber fan fault LED (B) on the front of the Offline Converter Assembly (OCA), as shown in Figure 10 on page 12, is on solid.

Power supplies 11

Figure 10. Fan fault LED and fan identify button

a. To identify the failing fan. Press the fan identify button (A), as shown in Figure 10. An amber

left or right fan-fault LED (C) on solid, as shown in Figure 11, indicates the faulty fan.

Figure 11. Removing a fan

b. Loosen the thumbscrew (A) that holds the fan in the power-supply assembly, as shown in

Figure 11.

12 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

c. Use the recessed fan handle (B) to lift the fan from the power-supply assembly, as shown in

Figure 11 on page 12.

If you removed the power supply or fan as part of another service action, or if you want to replace the power supply or fan that you removed from an expansion unit, see Replacing a power supply or fan in a 5802 or 5877 expansion unit with the power turned on.

Removing a power supply or fan from a 5802 or 5877 expansion unit with the power turned off

Learn how to remove a power supply or power-supply fan from a 5802 or 5877 expansion unit if you want to replace a failing part with the power turned off.

If your system is managed by the Hardware Management Console (HMC), use the HMC to remove a power supply. For instructions, see Removing a part by using the Hardware Management Console.

If your system is not managed by an HMC or an SDMC, complete the following steps to remove a power supply or fan from an expansion unit or system while the system power is turned off:

1. Perform the prerequisite tasks, as described in Before you begin.

2. Open the front rack door.

3. Identify the failing part, as described in Identifying a failing part.

4. At the front of the expansion unit, identify the power supply that needs to be replaced. To identify

the power supply, observe the state of the amber field-replaceable unit (FRU) fault and identify light-emitting diode (LED) (A) as shown in Figure 12. A lit (on solid or flashing) LED indicates the failing power supply.

Figure 12. FRU fault and identify LED

5. If the system is running, stop the system as described in Stopping the system or logical partition.

6. At the front of the expansion unit, slide the cable retention bracket for the power supply that you

want to remove, to the open position (A). Disconnect the cable (B) as shown in Figure 13 on page

14.

Power supplies 13

Figure 13. Disconnecting the power cable from the front of an expansion unit

7. Attach the wrist strap.

Attention:

v Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic

discharge (ESD) from damaging your hardware.

v 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.

v If you do not have a 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.

8. Rotate the power supply locking handle (A) to the open position, as shown in Figure 14 on page 15.

Pull out the power supply from the expansion unit.

14 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Figure 14. Removing a power supply

9. Optional: If you want to remove a failing power-supply fan, complete the following steps:

Note: If a fan fails, the amber fan fault LED on the front of the Offline Converter Assembly (OCA)

(B), shown in Figure 15, is on solid.

Figure 15. Fan fault LED and fan identify button

Power supplies 15

a. Identify the failing fan by pressing the fan identify button (A) shown in Figure 15 on page 15.

An amber left or right fan-fault LED (C) on solid, as shown in Figure 16, indicates the faulty fan.

Figure 16. Removing a power supply fan

b. Loosen the thumbscrew (A) that holds the fan in the power-supply assembly, as shown in

Figure 16.

c. Use the recessed fan handle (B) to pull the fan out of the power-supply assembly, as shown in

Figure 16.

If you removed the power supply or fan as part of another service action, or if you want to replace the power supply or fan that you removed from the expansion unit, see “Replacing a power supply or fan in a 5802 or 5877 expansion unit with the power turned off” on page 21.

Replacing a power supply or fan in a 5802 or 5877 expansion unit with the power turned on

Learn how to replace a power supply or power-supply fan in a 5802 or 5877 expansion unit if you removed a failing part and want to replace the power-supply assembly with the power turned on.

If your system is managed by the Hardware Management Console (HMC), use the HMC to replace a power supply. For instructions, see Exchanging a part by using the Hardware Management Console.

Determine if you are able to perform this procedure concurrently

16 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

Attention: Two power supplies must be present in the expansion unit. If one power supply fails, the expansion unit continues to operate. If you are performing this procedure concurrently (with the power turned on), there is a time limit. From the moment the power supply is removed, the exchange of the power supply must be completed in less than 5 minutes. If you cannot replace the power supply in less than 5 minutes, the I/O drawer automatically shuts down.

Before installing or reinstalling a power supply, inspect the signal connector pins to ensure that the pins are not bent or damaged.

Attention: Bent pins damage the midplane receptacle. Be careful not to touch or damage the signal connector pins.

Read the following steps, but do not perform them yet. Then decide if you are ready (and able) to complete this repair within 5 minutes.

1. Have the replacement power supply or fan ready.

2. Remove the power supply from the expansion unit.

3. Install the fan or fans into the power supply as required for the service procedure being performed.

4. Install the power supply into the enclosure.

If your system is not managed by an HMC or an SDMC, complete the following steps to replace the power supply in an expansion unit or system while the system power is turned on:

1. If you are replacing a power supply or power-supply fan because of a failure, remove the failing part as described in Removing a power supply or fan from a 5802 or 5877 expansion unit with the power turned on.

2. Perform the prerequisite tasks, as described in Before you begin.

3. Open the front rack door.

4. Attach the wrist strap.

Attention:

v Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic

discharge (ESD) from damaging your hardware.

v 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.

v If you do not have a 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.

5. Optional: If you must replace a failing power-supply fan, complete the following steps: a. Align the new fan with the opening in the power-supply assembly. b. Press the fan (A) into its connector in the assembly as shown in Figure 17 on page 18. c. Tighten the thumbscrew (D) as shown in Figure 17 on page 18.

Power supplies 17

Figure 17. Replacing a fan

6. To replace the power supply, with the locking handle (A) in the open position, push the power

supply into the expansion unit as shown in Figure 18.

Figure 18. Replacing a power supply

7. Close the locking handle (A) until the power supply locks into position.

18 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC

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