riser-card” on page 34 for the location of the PCIe slots on the optional riser-card. The system board
provides five additional PCI Express Gen3 adapter slots (see “System-board optional-device connectors”
on page 32 for the location of the PCIe slots on the system board). Some models come with the PCIe
riser-card assembly with brackets installed. The following table lists the PCIe slots on the riser-card and
the system board, the microprocessor to which each slot is connected, and the supported adapters that
you can install in each slot.
Table 15. PCIe slots, the microprocessor which supports the PCIe slot, and the size of the PCIe adapters supported.
PCIe slots
Slot on PCI
riser-card
Slot on the system
board
Microprocessor to
which the slot is
connected
Adapters
supported in the
slot
Slot 1
Yes
Microprocessor 2
PCIe Gen3 x16 (x16,
x8, x4, x1) full-height,
half-length adapter
Slot 2
Yes
Microprocessor 2
PCIe Gen3 x16 (x8,
x4, x1) full-height,
half-length adapter
Slot 3
Yes
Microprocessor 2
PCIe Gen3 x16 (x8,
x4, x1) full-height,
half-length adapter
Slot 4
Yes
Microprocessor 2
PCIe Gen3 x8
low-profile adapter
Slot 5
Yes
Microprocessor 2
PCIe Gen3 x8
low-profile adapter
Slot 6
Yes
Microprocessor 1
PCIe Gen3 x8
low-profile adapter
Slot 7
Yes
Microprocessor 1
PCIe Gen3 x8
low-profile adapter
Slot 8
Yes
Microprocessor 1
PCIe Gen3 x8
low-profile adapter
Notes:
– The x16 (x8) designation for a PCIe slot identifies a x16 slot that is wired for x8. If you install a x16 adapter in this
slot that can downshift to the x8 bandwidth, it will run at the x8 bandwidth. The x16 connector can be used for
x8, x4, x1, and x16 adapters. Check the information that comes with your adapter for compatibility information.
– The server also supports PCIe Gen1 and Gen2 adapters.
• The server comes with an onboard RAID controller that provides basic RAID levels 0, 1, and 10
functionality. The server supports optional RAID controllers, RAID cache cards, and Feature On Demand
software RAID that you can purchase for additional RAID levels 5, 6, 50, and 60 support. For configuration
information, see the documentation that comes with the adapter or the ServeRAID documentation at
http://www.ibm.com/supportportal/.For more information about the supported adapters, see Table 16
“Supported adapters, slot in which to install the adapters, and information about the adapters.” on page
71. For more information about the supported RAID cache cards, see Table 17 “Supported RAID cache
cards and where you can install the cache cards.” on page 74. For more information about the supported
Features on Demand (FoD) software, see Table 18 “Supported Features on Demand software” on page 76.
For instructions on how to install an adapter, see “Adapter installation instructions” on page 76.
Supported adapters
This section contains descriptive information of the adapters supported by this server along with the
suggested slot installation sequence.
The following table lists the adapters that the server supports.
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