Chapter 1. General description
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1.4.8 System node PCIe slots
Each Power E870 or Power E880 system node enclosure provides eight half-length, half-high
x16 PCIe Gen3 slots. These PCIe slots can be used for either low profile PCIe adapters or for
attaching a PCIe I/O drawer.
A new form factor blind swap cassette (BSC) is used to house the low profile adapters which
go into these slots.
PCIe Gen1, Gen2, and Gen3 adapter cards are supported in these Gen3 slots.
Table 1-6 provides details of the PCI slots in the Power E870 and Power E880 system.
Table 1-6 PCIe slot locations and descriptions for the Power E870 and Power E880
All slots support enhanced error handling (EEH).
All PCIe slots are hot swappable and support concurrent maintenance.
1.5 Disk and media features
A system node does not support internal disks. Any required disk must reside within a SAN
disk subsystem or an external disk drawer. At the time of writing, the EXP24S SFF Gen2-bay
Drawer (#5887) is the only supported disk drawer for Power E870 or Power E880.
Each system control unit enclosure has one slim-line bay which can support one DVD drive
(#EU13). The #EU13 DVD is cabled to a USB PCIe adapter located in either a system node
or in a PCIe Gen3 I/O drawer. A USB to SATA converter is included in the configuration
without a separate feature code.
For IBM i, a DVD drive must be available on the server when required. The DVD can be in the
system control unit or it can be located in an external enclosure such as a 7226-1U3
Multimedia drawer.
1.6 I/O drawers
If additional Gen3 PCIe slots beyond the system node slots are required, a system node x16
slot is used to attach a 6-slot expansion module in the I/O Drawer. A PCIe Gen3 I/O
Slot
Location code
Description
PHB
Adapter size
Slot 1
P1-C1
PCIe3, x16
Processor Module 1, PHB1
Short (low-profile)
Slot 2
P1-C2
PCIe3, x16
Processor Module 1, PHB0
Short (low-profile)
Slot 3
P1-C3
PCIe3, x16
Processor Module 2, PHB1
Short (low-profile)
Slot 4
P1-C4
PCIe3, x16
Processor Module 2, PHB0
Short (low-profile)
Slot 5
P1-C5
PCIe3, x16
Processor Module 3, PHB1
Short (low-profile)
Slot 6
P1-C6
PCIe3, x16
Processor Module 3, PHB0
Short (low-profile)
Slot 7
P1-C7
PCIe3, x16
Processor Module 4, PHB1
Short (low-profile)
Slot 8
P1-C8
PCIe3, x16
Processor Module 4, PHB0
Short (low-profile)
