IBM Power AC922 8335-GTW User manual

Power Systems
Problem analysis, system parts, and
locations for the 8335-GTC, 8335-GTG,
8335-GTH, 8335-GTW, and 8335-GTX
IBM

Note
Before using this information and the product it supports, read the information in “Safety notices” on
page v, “Notices” on page 45, 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 2017, 2019.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with
IBM Corp.

Contents
Safety notices........................................................................................................v
Beginning troubleshooting and problem analysis....................................................1
Determining the problem analysis procedure to perform.......................................................................... 1
Resolving a BMC access problem................................................................................................................2
Resolving a power problem......................................................................................................................... 3
Resolving a system rmware boot failure...................................................................................................4
Resolving a VGA monitor problem...............................................................................................................5
Resolving an operating system boot failure................................................................................................6
Resolving a hardware problem....................................................................................................................7
Resolving a GPU, PCIe adapter, or device problem....................................................................................7
Resolving a network adapter problem...................................................................................................9
Resolving a graphics processing unit problem....................................................................................10
Resolving a storage device problem....................................................................................................13
Resolving an NVMe Flash adapter problem........................................................................................ 14
Identifying the location of the PCIe adapter by using the slot number..............................................15
Identifying the location of the GPU......................................................................................................16
Identifying the location of the NVMe Flash adapter........................................................................... 16
Identifying the location of the storage device.....................................................................................17
User guides for GPUs and PCIe adapters............................................................................................ 17
Resolving an over temperature problem for a water-cooled 8335-GTW or 8335-GTX system............. 18
Determining and setting the thermal mode for an 8335-GTG, 8335-GTH, or 8335-GTX system..........20
Identifying a service action by using system event logs.......................................................................... 21
Verifying a repair........................................................................................................................................ 22
Collecting diagnostic data......................................................................................................................... 23
Contacting IBM service and support.........................................................................................................24
Finding parts and locations ................................................................................. 25
8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX locations................................................ 25
8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX parts.......................................................31
Notices................................................................................................................45
Accessibility features for IBM Power Systems servers............................................................................ 46
Privacy policy considerations ................................................................................................................... 47
Trademarks................................................................................................................................................ 47
Electronic emission notices.......................................................................................................................47
Class A Notices.....................................................................................................................................48
Class B Notices.....................................................................................................................................51
Terms and conditions................................................................................................................................ 53
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: 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:
• 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 reconguration
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
source to the PDP.
• When connecting power to the product ensure all power cables are properly connected.
– 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. 2017, 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 specied 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
conguration 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: Observe the following precautions when working on or around your IT rack system:
• 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.
vi Power Systems: Problem analysis, system parts, and locations for the 8335-GTC, 8335-GTG, 8335-GTH,
8335-GTW, and 8335-GTX

• 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).
• Stability hazard:
– The rack may tip over causing serious personal injury.
– Before extending the rack to the installation position, read the installation instructions.
– Do not put any load on the slide-rail mounted equipment mounted in the installation position.
– Do not leave the slide-rail mounted equipment in the installation position.
• 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
specied 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)
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.
• 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 conguration of the rack cabinet as you
received it. If this conguration is not known, you must observe the following precautions:
– Remove all devices in the 32U position (compliance ID RACK-001 or 22U (compliance ID
RR001) and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are little-to-no empty U-levels between devices installed in the rack cabinet
below the 32U (compliance ID RACK-001 or 22U (compliance ID RR001) level, unless the
received conguration specically 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 conguration of the rack
cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent.
Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the
pallet.
(R002)
(L001)
DANGER: Hazardous voltage, current, or energy levels are present inside any component that has
this label attached. Do not open any cover or barrier that contains this label. (L001)
(L002)
viii Power Systems: Problem analysis, system parts, and locations for the 8335-GTC, 8335-GTG, 8335-GTH,
8335-GTW, and 8335-GTX

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). Stability
hazard:
• The rack may tip over causing serious personal injury.
• Before extending the rack to the installation position, read the installation instructions.
• Do not put any load on the slide-rail mounted equipment mounted in the installation position.
• Do not leave the slide-rail mounted equipment in the installation position.
(L002)
(L003)
or
or
or
Safety notices ix

or
DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or
multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and
power cables. (L003)
(L007)
CAUTION: A hot surface nearby. (L007)
x Power Systems: Problem analysis, system parts, and locations for the 8335-GTC, 8335-GTG, 8335-GTH,
8335-GTW, and 8335-GTX