2.7.2 PCIe Gen3 I/O Expansion Drawer
The PCIe Gen3 I/O Expansion Drawer (#EMX0) is a 4U high, PCIe Gen3-based and
rack-mountable I/O drawer. It offers two PCIe Fanout Modules (#EMXH), each providing six PCIe Gen3 full-high, full-length slots (two x16 and four x8).
The older Fanout Modules (#EMXF & #EMXG) that are used by Power E870, Power E870C, Power E880, and Power E880C systems cannot be ordered and is not supported with the Power system E1080.
For more information about the dimensions of the drawer, see 1.6, “I/O drawers” on page 26.
PCIe Gen 4 cable adapter (#EJ24) CXP 16X AOCs connects the system node to a PCIe Fanout Module in the I/O expansion drawer.
Concurrent repair and addition or removal of PCIe adapters is done by using HMC-guided menus or operating system support utilities.
A blind-swap cassette (BSC) is used to house the full-high adapters that are installed into these slots. The BSC is the same BSC that was used with the previous generation server’s #5802, #5803, #5877, and #5873 12X attached I/O drawers.
Power consumption is up to 50W per adapter slot.
Chapter 2. Architecture and technical overview 99
Figure 2-25 shows the rear view of the PCIe Gen3 I/O Expansion Drawer.
Figure 2-25 Rear view of the PCIe Gen3 I/O Expansion Drawer