IBM 8248-L4T User manual

Power Systems
Voltage regulators for the 8248-L4T,
8408-E8D, or 9109-RMD


Power Systems
Voltage regulators for the 8248-L4T,
8408-E8D, or 9109-RMD


Note
Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on
page 75, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823.
This edition applies to IBM Power Systems servers that contain the POWER7 processor and to all associated
models.
© Copyright IBM Corporation 2013.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety notices .................................v
Voltage regulator modules for the 8248-L4T, 8408-E8D, or 9109-RMD .........1
Model 8248-L4T, 8408-E8D, or 9109-RMD voltage regulator modules.................1
Installing the 8248-L4T, 8408-E8D, or 9109-RMD processor voltage regulator module ..........2
Removing the 8248-L4T, 8408-E8D, or 9109-RMD processor voltage regulator module ..........5
Replacing the 8248-L4T, 8408-E8D, or 9109-RMD processor voltage regulator module ..........8
Model 8248-L4T, 8408-E8D, or 9109-RMD memory voltage regulator module .............10
Removing the 8248-L4T, 8408-E8D, or 9109-RMD memory voltage regulator module ..........11
Replacing the 8248-L4T, 8408-E8D, or 9109-RMD memory voltage regulator module ..........15
Common procedures for installable features ........................18
Before you begin ................................18
Identifying a part ................................20
Control panel LEDs...............................20
Identifying a failing part in an AIX system or logical partition ................22
Locating a failing part in an AIX system or logical partition ................22
Activating the indicator light for the failing part ....................22
Deactivating the failing-part indicator light ......................22
Identifying a failing part in an IBM i system or logical partition ................23
Activating the failing-part indicator light ......................23
Deactivating the failing-part indicator light ......................23
Identifying a failing part in a Linux system or logical partition ................24
Locating a failing part in a Linux system or logical partition ................24
Finding the location code of a failing part in a Linux system or logical partition .........24
Activating the indicator light for the failing part ....................25
Deactivating the failing-part indicator light ......................25
Locating a failing part in a Virtual I/O Server system or logical partition.............25
Identifying a part by using the Virtual I/O Server ...................26
Starting the system or logical partition .........................26
Starting a system that is not managed by an HMC or an SDMC ................26
Starting a system or logical partition by using the HMC ..................28
Starting a system or virtual server by using the SDMC ...................28
Stopping a system or logical partition .........................28
Stopping a system that is not managed by an HMC or an SDMC ...............28
Stopping a system by using the HMC ........................30
Stopping a system by using the SDMC ........................30
Removing and replacing covers for the 8248-L4T, 8408-E8D, or 9109-RMD .............31
Removing the front cover from the 8248-L4T, 8408-E8D, or 9109-RMD ..............31
Installing the front cover on the 8248-L4T, 8408-E8D, or 9109-RMD ...............32
Placing the 8248-L4T, 8408-E8D, or 9109-RMD system into the service or operating position .......33
Placing the rack-mounted 8248-L4T, 8408-E8D, or 9109-RMD system into the service position ......33
Placing the rack-mounted 8248-L4T, 8408-E8D, or 9109-RMD system into the operating position .....34
Disconnecting the power cords from the 8248-L4T, 8408-E8D, or 9109-RMD .............36
Connecting the power cords to the 8248-L4T, 8408-E8D, or 9109-RMD ...............36
Installing a part by using the HMC ..........................37
Installing a part by using the SDMC ..........................38
Removing a part by using the HMC ..........................38
Removing a part by using the SDMC..........................38
Replacing a part by using the HMC ..........................39
Replacing a part by using the SDMC ..........................39
Verifying the installed part .............................40
Verifying an installed feature or replaced part in an AIX system or logical partition .........40
Verifying the installed part in an IBM i system or logical partition ...............42
Deactivating the failing-part indicator light ......................43
Verifying the installed part in a Linux system or logical partition ...............43
© Copyright IBM Corp. 2013 iii

Verifying an installed part by using stand-alone diagnostics .................43
Verifying the installed part by using the HMC......................45
Activating and deactivating LEDs by using the HMC ..................45
Viewing serviceable events by using the HMC.....................46
Verifying the installed part by using the SDMC .....................47
Activating and deactivating LEDs by using the SDMC ..................47
Viewing serviceable events by using the SDMC ....................48
Verifying an installed part or replaced part on a system or logical partition by using Virtual I/O Server tools 49
Verifying the installed part by using VIOS ......................49
Verify the replacement part by using VIOS ......................49
Verifying a repair ................................51
Verifying the repair in AIX ............................52
Verifying a repair by using an IBM i system or logical partition ................55
Verifying the repair in Linux ...........................57
Verifying the repair from the management console ....................57
Closing a service call ...............................58
Closing a service call by using AIX or Linux ......................63
Closing a service call by using Integrated Virtualization Manager ...............67
Activating and deactivating LEDs ...........................71
Deactivating a system attention LED or partition LED by using the management console .......72
Activating or deactivating an identify LED by using the management console ...........72
Deactivating a system attention LED or logical partition LED by using the Advanced System Management
Interface ..................................73
Activating or deactivating an identify LED by using the Advanced System Management Interface ....74
Notices ...................................75
Trademarks ...................................76
Electronic emission notices ..............................76
Class A Notices .................................76
Class B Notices .................................80
Terms and conditions ................................83
iv Power Systems: Voltage regulators for the 8248-L4T, 8408-E8D, or 9109-RMD

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§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.
© Copyright IBM Corp. 2013 v

DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous. To
avoid a shock hazard:
vConnect power to this unit only with the IBM provided power cord. Do not use the IBM
provided power cord for any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
vConnect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet
supplies proper voltage and phase rotation according to the system rating plate.
vConnect any equipment that will be attached to this product to properly wired outlets.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or structural damage.
vDisconnect the attached power cords, telecommunications systems, networks, and modems before
you open the device covers, unless instructed otherwise in the installation and configuration
procedures.
vConnect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)
DANGER
vi Power Systems: Voltage regulators for the 8248-L4T, 8408-E8D, or 9109-RMD

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

CAUTION:
Removing components from the upper positions in the rack cabinet improves rack stability during
relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a
room or building:
vReduce the weight of the rack cabinet by removing equipment starting at the top of the rack
cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you
received it. If this configuration is not known, you must observe the following precautions:
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are no empty U-levels between devices installed in the rack cabinet below the
32U level.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from
the suite.
vInspect the route that you plan to take to eliminate potential hazards.
vVerify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the
documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.
vVerify that all door openings are at least 760 x 230 mm (30 x 80 in.).
vEnsure that all devices, shelves, drawers, doors, and cables are secure.
vEnsure that the four leveling pads are raised to their highest position.
vEnsure that there is no stabilizer bracket installed on the rack cabinet during movement.
vDo not use a ramp inclined at more than 10 degrees.
vWhen the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet.
– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest
position to the highest position.
vIf a long-distance relocation is required, restore the rack cabinet to the configuration of the rack
cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent.
Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the
pallet.
(R002)
(L001)
(L002)
viii Power Systems: Voltage regulators for the 8248-L4T, 8408-E8D, or 9109-RMD