IBM Power Systems 8247-42L User manual

Power Systems
PCIe adapter placement for the
8247-42L, 8286-41A, or 8286-42A
IBM

Power Systems
PCIe adapter placement for the
8247-42L, 8286-41A, or 8286-42A
IBM

Note
Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on
page 43, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823.
This edition applies to IBM Power Systems™servers that contain the POWER8 processor and to all associated
models.
© Copyright IBM Corporation 2014, 2017.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety notices ................................. v
PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A ........... 1
PCIe adapter placement rules and slot priorities for the 8247-42L, 8286-41A, or 8286-42A .......... 1
PCIe adapter placement rules and slot priorities for the 8247-42L ................. 1
PCIe adapter placement rules and slot priorities for the 8286-41A or 8286-42A ............ 19
PCIe adapter placement rules and slot priorities for the EMX0 PCIe Gen3 I/O expansion drawer....... 32
Related procedures for PCI adapter placement........................ 40
Finding the current system configuration in IBM i ..................... 40
Notices ................................... 43
Accessibility features for IBM Power Systems servers ..................... 44
Privacy policy considerations ............................. 45
Trademarks ................................... 46
Electronic emission notices .............................. 46
Class A Notices ................................. 46
Class B Notices ................................. 50
Terms and conditions ................................ 53
© Copyright IBM Corp. 2014, 2017 iii

iv Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

Safety notices
Safety notices may be printed throughout this guide:
vDANGER notices call attention to a situation that is potentially lethal or extremely hazardous to
people.
vCAUTION notices call attention to a situation that is potentially hazardous to people because of some
existing condition.
vAttention notices call attention to the possibility of damage to a program, device, system, or data.
World Trade safety information
Several countries require the safety information contained in product publications to be presented in their
national languages. If this requirement applies to your country, safety information documentation is
included in the publications package (such as in printed documentation, on DVD, or as part of the
product) shipped with the product. The documentation contains the safety information in your national
language with references to the U.S. English source. Before using a U.S. English publication to install,
operate, or service this product, you must first become familiar with the related safety information
documentation. You should also refer to the safety information documentation any time you do not
clearly understand any safety information in the U.S. English publications.
Replacement or additional copies of safety information documentation can be obtained by calling the IBM
Hotline at 1-800-300-8751.
German safety information
Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne § 2 der
Bildschirmarbeitsverordnung geeignet.
Laser safety information
IBM®servers can use I/O cards or features that are fiber-optic based and that utilize lasers or LEDs.
Laser compliance
IBM servers may be installed inside or outside of an IT equipment rack.
DANGER: When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid
a shock hazard:
vIf IBM supplied the power cord(s), connect power to this unit only with the IBM provided power cord.
Do not use the IBM provided power cord for any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this
product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
– For AC power, disconnect all power cords from their AC power source.
– For racks with a DC power distribution panel (PDP), disconnect the customer’s DC power source to
the PDP.
vWhen connecting power to the product ensure all power cables are properly connected.
© Copyright IBM Corp. 2014, 2017 v

– For racks with AC power, connect all power cords to a properly wired and grounded electrical
outlet. Ensure that the outlet supplies proper voltage and phase rotation according to the system
rating plate.
– For racks with a DC power distribution panel (PDP), connect the customer’s DC power source to
the PDP. Ensure that the proper polarity is used when attaching the DC power and DC power
return wiring.
vConnect any equipment that will be attached to this product to properly wired outlets.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or structural damage.
vDo not attempt to switch on power to the machine until all possible unsafe conditions are corrected.
vAssume that an electrical safety hazard is present. Perform all continuity, grounding, and power checks
specified during the subsystem installation procedures to ensure that the machine meets safety
requirements.
vDo not continue with the inspection if any unsafe conditions are present.
vBefore you open the device covers, unless instructed otherwise in the installation and configuration
procedures: Disconnect the attached AC power cords, turn off the applicable circuit breakers located in
the rack power distribution panel (PDP), and disconnect any telecommunications systems, networks,
and modems.
DANGER:
vConnect and disconnect cables as described in the following procedures when installing, moving, or
opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. For AC power, remove the power cords from the outlets.
3. For racks with a DC power distribution panel (PDP), turn off the circuit breakers located in the
PDP and remove the power from the Customer's DC power source.
4. Remove the signal cables from the connectors.
5. Remove all cables from the devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. For AC power, attach the power cords to the outlets.
5. For racks with a DC power distribution panel (PDP), restore the power from the Customer's DC
power source and turn on the circuit breakers located in the PDP.
6. Turn on the devices.
Sharp edges, corners and joints may be present in and around the system. Use care when handling
equipment to avoid cuts, scrapes and pinching. (D005)
(R001 part 1 of 2):
DANGER: Observe the following precautions when working on or around your IT rack system:
vHeavy equipment–personal injury or equipment damage might result if mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices
in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom
of the rack cabinet.
vRack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top of
rack-mounted devices. In addition, do not lean on rack mounted devices and do not use them to
stabilize your body position (for example, when working from a ladder).
vi Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

vEach rack cabinet might have more than one power cord.
– For AC powered racks, be sure to disconnect all power cords in the rack cabinet when directed to
disconnect power during servicing.
– For racks with a DC power distribution panel (PDP), turn off the circuit breaker that controls the
power to the system unit(s), or disconnect the customer’s DC power source, when directed to
disconnect power during servicing.
vConnect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do
not plug a power cord from a device installed in one rack cabinet into a power device installed in a
different rack cabinet.
vAn electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the
system or the devices that attach to the system. It is the responsibility of the customer to ensure that
the outlet is correctly wired and grounded to prevent an electrical shock.
(R001 part 2 of 2):
CAUTION:
vDo not install a unit in a rack where the internal rack ambient temperatures will exceed the
manufacturer's recommended ambient temperature for all your rack-mounted devices.
vDo not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked
or reduced on any side, front, or back of a unit used for air flow through the unit.
vConsideration should be given to the connection of the equipment to the supply circuit so that
overloading of the circuits does not compromise the supply wiring or overcurrent protection. To
provide the correct power connection to a rack, refer to the rating labels located on the equipment in
the rack to determine the total power requirement of the supply circuit.
v(For sliding drawers.) Do not pull out or install any drawer or feature if the rack stabilizer brackets are
not attached to the rack. Do not pull out more than one drawer at a time. The rack might become
unstable if you pull out more than one drawer at a time.
v(For fixed drawers.) This drawer is a fixed drawer and must not be moved for servicing unless specified
by the manufacturer. Attempting to move the drawer partially or completely out of the rack might
cause the rack to become unstable or cause the drawer to fall out of the rack.
Safety notices 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 (compliance ID RACK-001 or 22U (compliance ID RR001)
and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are little-to-no empty U-levels between devices installed in the rack cabinet
below the 32U (compliance ID RACK-001 or 22U (compliance ID RR001) level, unless the
received configuration specifically allowed it.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from
the suite.
vIf the rack cabinet you are relocating was supplied with removable outriggers they must be
reinstalled before the cabinet is relocated.
vInspect the route that you plan to take to eliminate potential hazards.
vVerify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the
documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.
vVerify that all door openings are at least 760 x 230 mm (30 x 80 in.).
vEnsure that all devices, shelves, drawers, doors, and cables are secure.
vEnsure that the four leveling pads are raised to their highest position.
vEnsure that there is no stabilizer bracket installed on the rack cabinet during movement.
vDo not use a ramp inclined at more than 10 degrees.
vWhen the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet.
– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest
position to the highest position.
vIf a long-distance relocation is required, restore the rack cabinet to the configuration of the rack
cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent.
Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the
pallet.
(R002)
(L001)
DANGER: Hazardous voltage, current, or energy levels are present inside any component that has this
label attached. Do not open any cover or barrier that contains this label. (L001)
(L002)
viii Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

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

1234
or
DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or
multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power
cables. (L003)
(L007)
CAUTION: A hot surface nearby. (L007)
(L008)
xPower Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

CAUTION: Hazardous moving parts nearby. (L008)
All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class
1 laser products. Outside the U.S., they are certified to be in compliance with IEC 60825 as a class 1 laser
product. Consult the label on each part for laser certification numbers and approval information.
CAUTION:
This product might contain one or more of the following devices: CD-ROM drive, DVD-ROM drive,
DVD-RAM drive, or laser module, which are Class 1 laser products. Note the following information:
vDo not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
vUse of the controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
(C026)
CAUTION:
Data processing environments can contain equipment transmitting on system links with laser modules
that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical
fiber cable or open receptacle. Although shining light into one end and looking into the other end of
a disconnected optical fiber to verify the continuity of optic fibers many not injure the eye, this
procedure is potentially dangerous. Therefore, verifying the continuity of optical fibers by shining
light into one end and looking at the other end is not recommended. To verify continuity of a fiber
optic cable, use an optical light source and power meter. (C027)
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments. (C028)
CAUTION:
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following
information: laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam. (C030)
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.
Do Not:
v___ Throw or immerse into water
v___ Heat to more than 100°C (212°F)
v___ Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For information,
call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)
Safety notices xi

CAUTION:
Regarding IBM provided VENDOR LIFT TOOL:
vOperation of LIFT TOOL by authorized personnel only.
vLIFT TOOL intended for use to assist, lift, install, remove units (load) up into rack elevations. It is
not to be used loaded transporting over major ramps nor as a replacement for such designated tools
like pallet jacks, walkies, fork trucks and such related relocation practices. When this is not
practicable, specially trained persons or services must be used (for instance, riggers or movers).
vRead and completely understand the contents of LIFT TOOL operator's manual before using.
Failure to read, understand, obey safety rules, and follow instructions may result in property
damage and/or personal injury. If there are questions, contact the vendor's service and support.
Local paper manual must remain with machine in provided storage sleeve area. Latest revision
manual available on vendor's web site.
vTest verify stabilizer brake function before each use. Do not over-force moving or rolling the LIFT
TOOL with stabilizer brake engaged.
vDo not move LIFT TOOL while platform is raised, except for minor positioning.
vDo not exceed rated load capacity. See LOAD CAPACITY CHART regarding maximum loads at
center versus edge of extended platform.
vOnly raise load if properly centered on platform. Do not place more than 200 lb (91 kg) on edge of
sliding platform shelf also considering the load's center of mass/gravity (CoG).
vDo not corner load the platform tilt riser accessory option. Secure platform riser tilt option to main
shelf in all four (4x) locations with provided hardware only, prior to use. Load objects are designed
to slide on/off smooth platforms without appreciable force, so take care not to push or lean. Keep
riser tilt option flat at all times except for final minor adjustment when needed.
vDo not stand under overhanging load.
vDo not use on uneven surface, incline or decline (major ramps).
vDo not stack loads.
vDo not operate while under the influence of drugs or alcohol.
vDo not support ladder against LIFT TOOL.
vTipping hazard. Do not push or lean against load with raised platform.
vDo not use as a personnel lifting platform or step. No riders.
vDo not stand on any part of lift. Not a step.
vDo not climb on mast.
vDo not operate a damaged or malfunctioning LIFT TOOL machine.
vCrush and pinch point hazard below platform. Only lower load in areas clear of personnel and
obstructions. Keep hands and feet clear during operation.
vNo Forks. Never lift or move bare LIFT TOOL MACHINE with pallet truck, jack or fork lift.
vMast extends higher than platform. Be aware of ceiling height, cable trays, sprinklers, lights, and
other overhead objects.
vDo not leave LIFT TOOL machine unattended with an elevated load.
vWatch and keep hands, fingers, and clothing clear when equipment is in motion.
vTurn Winch with hand power only. If winch handle cannot be cranked easily with one hand, it is
probably over-loaded. Do not continue to turn winch past top or bottom of platform travel.
Excessive unwinding will detach handle and damage cable. Always hold handle when lowering,
unwinding. Always assure self that winch is holding load before releasing winch handle.
vA winch accident could cause serious injury. Not for moving humans. Make certain clicking sound
is heard as the equipment is being raised. Be sure winch is locked in position before releasing
handle. Read instruction page before operating this winch. Never allow winch to unwind freely.
Freewheeling will cause uneven cable wrapping around winch drum, damage cable, and may cause
serious injury. (C048)
Power and cabling information for NEBS (Network Equipment-Building System)
GR-1089-CORE
The following comments apply to the IBM servers that have been designated as conforming to NEBS
(Network Equipment-Building System) GR-1089-CORE:
xii Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

The equipment is suitable for installation in the following:
vNetwork telecommunications facilities
vLocations where the NEC (National Electrical Code) applies
The intrabuilding ports of this equipment are suitable for connection to intrabuilding or unexposed
wiring or cabling only. The intrabuilding ports of this equipment must not be metallically connected to the
interfaces that connect to the OSP (outside plant) or its wiring. These interfaces are designed for use as
intrabuilding interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation
from the exposed OSP cabling. The addition of primary protectors is not sufficient protection to connect
these interfaces metallically to OSP wiring.
Note: All Ethernet cables must be shielded and grounded at both ends.
The ac-powered system does not require the use of an external surge protection device (SPD).
The dc-powered system employs an isolated DC return (DC-I) design. The DC battery return terminal
shall not be connected to the chassis or frame ground.
The dc-powered system is intended to be installed in a common bonding network (CBN) as described in
GR-1089-CORE.
Safety notices xiii

xiv Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

PCIe adapter placement for the 8247-42L, 8286-41A, or
8286-42A
Find information about the Peripheral Component Interconnect (PCI) Express (PCIe) adapters that are
supported for the IBM Power®System S824L (8247-42L), IBM Power System S814 (8286-41A), and the
IBM Power System S824 (8286-42A) servers that contain the POWER8®processor.
The following features are electromagnetic compatibility (EMC) Class B features. See the Class B Notices
in the Hardware Notices section.
Table 1. Electromagnetic compatibility (EMC) Class B features
Feature Description
4807 PCIe Cryptographic Coprocessor
5717 4-port 10/100/1000 Base-TX PCI Express Adapter
5748 POWER®GXT145 PCI Express Graphics Accelerator
5767 2-port 10/100/1000 Base-TX Ethernet PCI Express Adapter
5768 2-port Gb Ethernet-SX PCI Express Adapter
5769 10 Gb Ethernet-SR PCI Express Adapter
5785 4-port Async EIA-232 PCIe Adapter
EC2J PCIe 2-Port 10 GbE SFN6122F Adapter
EC42 PCIe2 3D Graphics Adapter x1
EC47 PCIe gen3 x16 GPU Adapter
EN0W PCIe2 2-port 10 GbE BaseT RJ45 Adapter
PCIe adapter placement rules and slot priorities for the 8247-42L,
8286-41A, or 8286-42A
Find information about the placement rules and slot priorities for the Peripheral Component Interconnect
(PCI) Express (PCIe) adapters that are supported for the 8286-41A or 8286-42A system.
PCIe adapter placement rules and slot priorities for the 8247-42L
Find information about the placement rules and slot priorities for the Peripheral Component Interconnect
(PCI) Express (PCIe) adapters that are supported for the 8247-42L system.
PCIe slot descriptions for the 8247-42L
The 8247-42L system provides PCIe generation 3 slots. Table 2 on page 2 provides information about the
PCIe slots in the 8247-42L system that offers both a single POWER8 processor module or two POWER8
processor modules. The PCIe slots are enabled to support the PCIe3 cable adapter (FC EJ08) that is used
to attach the EMX0 PCIe Gen3 I/O expansion drawer.
© Copyright IBM Corp. 2014, 2017 1

Table 2. PCIe generation 3 slots in the system.
Slot Adapter size
Slot availability
8247-42L
no GPU adapter
(1 processor)
8247-42L
no GPU adapter
(2 processors)
8247-42L
with GPU adapter
(2 processors)
PCIe3 x16 Full-height,
full-length
2 slots (P1-C6 and P1-C7) 4 slots (P1-C3, P1-C5,
P1-C6, and P1-C7)
4 slots (P1-C3, P1-C5,
P1-C6, and P1-C7)
PCIe3 x8 Full-height,
half-length or
short (low-profile)
5 slots (P1-C8, P1-C9,
P1-C10, P1-C11, and
P1-C12)
7 slots (P1-C2, P1-C4,
P1-C8, P1-C9, P1-C10,
P1-C11, and P1-C12)
6 slots (P1-C2, P1-C4,
P1-C8, P1-C9, P1-C11, and
P1-C12)
Two PCIe generation 3 (PCIe3) switches in the system backplane provide PCIe3 busses from the system
processor modules that provide connectivity to the following features:
vPCIe slots
vEmbedded PCIe local area network (LAN) controller
vPCIe3 internal SAS controller
vPCIe3 USB controller
The two PCIe3 switches follow:
vPCIe3 Switch 1 that provides PCIe buses from Processor Module 1, Chip-0.
vPCIe3 Switch 2 that provides PCIe buses from Processor Module 1, Chip-1.
Table 3 lists the features provided by the PCIe3 switches.
Table 3. PCIe generation 3 switches in the system.
Features provided PCIe3 Switch 1 PCIe3 Switch 2
Lanes and ports 32-lane, 8-ports PCIe Gen3 48-lane, 12-ports PCIe Gen3
With integrated 8.0 gigatransfers per second (GTps)
Serializer/Deserializer (SerDes) speed negotiation, for each
port
Lane and polarity reversal Supported Supported
All ports support concurrent maintenance through
I2C bus
Yes Yes
End-to-end cyclic redundancy check (CRC) and
Poison bit error checking
Supported Supported
Data path parity Supported Supported
Memory error correction Supported Supported
Advanced error reporting Supported Supported
Aggregate full duplex bandwidth 512 GT/s 768 GT/s
Designate any port as the Upstream port Yes Yes
27x27 mm, 676-pin FCBGA package Yes Yes
Power consumption vNominal: 6 watts
vMaximum: 12 watts
vNominal: 8 watts
vMaximum: 12 watts
Figure 1 on page 3 shows the rear view of the system with the location codes for the PCIe adapter slots.
Table 4 on page 3 lists the PCIe adapter slot locations and details for the 8247-42L system.
2Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A

Table 4. PCIe slot locations and descriptions for the 8247-42L system
Slot Location
code
Description PHB Adapter
size
Slot capabilities Slot availability
CAPI SR-IOV Dynamic
direct
memory
access
(DMA)
window
I/O adapter
enlarged
capacity
assign
order
8247-42L
no GPU
adapter
(1
processor)
8247-42L
no GPU
adapter
(2
processors)
8247-42L
with GPU
adapter
(2
processors)
Slot 1 P1-C21, 6 PCIe3, x8 Processor
Module 2,
Chip-1,
PHB1
Full-height,
half-length
or short
(low-profile)
No Yes Yes 5 No Yes Yes
Slot 2 P1-C31PCIe3, x16 Processor
Module 2,
Chip-1,
PHB0
Full-height,
full-length
Yes Yes Yes 9 No Yes Dedicated
slot for the
second GPU
adapter3
Slot 3 P1-C41, 6 PCIe3, x8 Processor
Module 2,
Chip-0,
PHB1
Full-height,
half-length
or short
(low-profile)
No Yes Yes 6 No Yes Not
available if
a GPU
adapter is
in slot 3
(P1-C3)
Slot 4 P1-C51PCIe3, x16 Processor
Module 2,
Chip-0,
PHB0
Full-height,
full-length
Yes Yes Yes 11 No Yes Yes
Slot 5 P1-C61PCIe3, x16 Processor
Module 1,
Chip-1,
PHB0
Full-height,
full-length
Yes Yes Yes Default Yes Yes Dedicated
slot for the
first GPU
adapter
Slot 6 P1-C71PCIe3, x16 Processor
Module 1,
Chip-0,
PHB0
Full-height,
full-length
Yes Yes Yes Default Yes Yes Not
available
because the
GPU
adapter is
in slot 5
(P1-C6)
Slot 7 P1-C82PCIe3, x8 PCIe3
Switch 2,
S2P16
Full-height,
half-length
or short
(low-profile)
No No Yes 5, 104Yes Yes Yes
Slot 8 P1-C92PCIe3, x8 PCIe3
Switch 2,
S2P17
Full-height,
half-length
or short
(low-profile)
No No Yes 6, 85Yes Yes Yes
Slot 9 P1-C102, 6 PCIe3, x8 PCIe3
Switch 2,
S1P9
Full-height,
half-length
or short
(low-profile)
No Yes Yes Default Dedicated slot for the LAN adapter
Figure 1. Rear view of a rack-mounted 8247-42L system with PCIe slots location codes
PCIe adapter placement 3

Table 4. PCIe slot locations and descriptions for the 8247-42L system (continued)
Slot Location
code
Description PHB Adapter
size
Slot capabilities Slot availability
CAPI SR-IOV Dynamic
direct
memory
access
(DMA)
window
I/O adapter
enlarged
capacity
assign
order
8247-42L
no GPU
adapter
(1
processor)
8247-42L
no GPU
adapter
(2
processors)
8247-42L
with GPU
adapter
(2
processors)
Slot 10 P1-C112PCIe3, x8 PCIe3
Switch 1,
S0P1
Full-height,
half-length
or short
(low-profile)
No No Yes 7 Yes Yes Yes
Slot 11 P1-C122, 6 PCIe3, x8 PCIe3
Switch 1,
S1P9
Full-height,
half-length
or short
(low-profile)
No Yes Yes Default Yes Yes Yes
1Slot is a direct slot from the Processor Module and is a high-performance slot. The connectors in these slots are differently colored than the slots from the PCIe3 switches.
2Slot connected by the PCIe3 switches.
3One PCIe gen3 x16 graphics processing unit (GPU) adapter (FC EC47 or EC4B) is preinstalled in slot 5 (P1-C6). The GPU adapter requires two slot space for accommodating
the air baffle.
4The I/O Adapter Enlarged Capacity assignment order value is 5 for one processor or 10 for two processors.
5The I/O Adapter Enlarged Capacity assignment order value is 6 for one processor or 8 for two processors.
6For platforms with less than 64GB of total system memory, SR-IOV should not be configured in these slots as performance may be severely impacted.
vAll slots are PCIe generation 3 slots.
vThe peak bandwidths supported by the x16 slots are 16 gigabytes per second (GBps) in simplex mode and 32 GBps in duplex mode.
vThe peak bandwidths supported by the x8 slots are 8 GBps in simplex mode and 16 GBps in duplex mode.
vRegular full-height adapters can be installed only in the full-height, full-length slots 2, 4, 5, and 6.
vThe full-height, half-length or short (low-profile) adapters can be installed in slots 1, 3, 7, 8, 10, and 11.
vAll slots support enhanced error handling (EEH).
vAll PCIe slots are hot swappable and support concurrent maintenance.
PCIe adapters placement rules
Use this information while selecting slots for installing PCIe adapters in the 8247-42L system. Use Table 5
on page 5 to identify slot placement priorities in the system and the maximum number of adapters that
can be installed in the system.
1. IBM Manufacturing requires that slot P1-C10 hold a local area network (LAN) adapter to install and
test the server. One LAN feature code (FC) 5899, EN0W, EL55, or EN0S should be selected for this
purpose. IBM ships the LAN adapter in the P1-C10 slot. If needed, the client can move the LAN
adapter to a different slot allowing other PCIe adapters to be placed in P1-C10. The following tables
assume that the LAN adapter remains in the P1-C10 slot.
2. The PCIe3 cable adapter (FC EJ08) is supported in slots P1-C3, P1-C6, P1-C5, and P1-C7 on 8247-42L
systems that do not have a GPU adapter installed.
3. Slots P1-C3, P1-C5, P1-C6, and P1-C7, are x16 slots with busses direct from the Processor Modules
and can be used to install high-performance PCIe adapters. For these full-height, full-length slots, first
priority must be given to GPU adapters followed by PCIe x16 adapters, CAPI adapters, Single Root
IO Virtualization (SR-IOV) capable adapters, FC EJ12 (FPGA Accelerator), high-performance adapters,
ending with all other supported adapters.
4. CAPI accelerator adapters are supported in slots P1-C6, P1-C7, P1-C3, and P1-C5.
5. Slots P1-C2 and P1-C4 are x8 slots with busses direct from the Processor Modules and can be used to
install high-performance PCIe adapters.
6. Slots P1-C2, P1-C3, P1-C4, P1-C5, P1-C6, and P1-C7 are slots with busses direct from the Processor
Modules and can be used to install high-performance PCIe adapters that support the Single Root IO
Virtualization (SR-IOV) function.
7. PCIe internal slots P1-C14 and P1-C15 are used to install the SAS RAID adapter FC EJ0S and the
internal SAS RAID adapter (CCIN 57D8).
4Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A