Preparing to install or set up an EMX0 PCIe3 expansion drawer
Learn about the prerequisites for installing your EMX0 PCIe3 expansion drawer.
Important: Changing the cable
configuration of an existing EMX0 PCIe3 expansion drawer or drawers can
result in unintended I/O configuration changes, including a change
to the bus numbers assigned to existing expansion drawers. When bus
numbers change, partition profiles cannot find existing I/O resources.
To prepare to install an EMX0 PCIe3 expansion drawer, complete the following steps:
- Ensure that you have a
PCIe3 cable adapter installed in the host system
before you install the EMX0 PCIe3 expansion drawer. For all systems except
the 8408-44E system that has an installation of system
firmware FW860.10 or later installed, or the 9080-MHE, 9080-MME,
9119-MHE, or 9119-MME system that has an installation of system
firmware FW840.xx or later installed, you must power off the system to install the PCIe3 cable adapter.To install another PCIe3 cable adapter to accommodate an EMX0 PCIe3 expansion drawer, see the following topics:
- If you must power off the system to install a PCIe adapter in your system, see PCIe adapters.
- If you can install a PCIe adapter when the system power is turned on, see Installing a part by using the HMC
- For PCIe adapter placement rules and slot priorities for your system or expansion drawer, see PCIe adapter placement rules and slot priorities.
- Ensure that you have the wanted number of PCIe3 6-slot fanout modules
installed in the EMX0 PCIe3 expansion drawer. To install another PCIe3 6-slot
fanout module, choose from the following topics:
- If your system is not managed by an HMC, you must power off the system to install a PCIe3 6-slot
fanout module, see Installing the PCIe3 6-slot fanout module in the EMX0 PCIe Gen3 I/O
expansion drawer with the system power turned off.Note: You must power off the server and the EMX0 PCIe3 expansion drawer to install an additional PCIe3 6-slot fanout module.
- If your system is managed by an HMC, you can install a PCIe3 6-slot fanout module when the system power is turned on. For details, see Installing a part by using the HMC.
- If your system is not managed by an HMC, you must power off the system to install a PCIe3 6-slot
fanout module, see Installing the PCIe3 6-slot fanout module in the EMX0 PCIe Gen3 I/O
expansion drawer with the system power turned off.
- Determine the level of software that you need to support the drawer. For instructions, see the IBM® Prerequisite website.
- Choose from the following options:
- If your EMX0 PCIe3 expansion drawer arrived to your
site preinstalled in a rack, complete the following steps:
- Ensure that you have the following
items before you start your installation:
- #1 and #2 Phillips screwdriver
- Flat-head screwdriver
- Remove the shipping bracket by completing the following steps:
- Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
- Using a #1 Phillips screwdriver
or 7/32 socket, remove the two M4 screws (B) that
secure the shipping bracket (A) to the EMX0 PCIe3 expansion drawer.Figure 1. Removing the shipping bracket

- Using a #2 Phillips screwdriver
or 7 mm socket, remove the four M5 screws (C) that
attach the shipping bracket (A) to the left
and right flanges of the rack frame. Lift the bracket out and away
from the rack frame.Tip: Save the bracket for any future reinstallation or shipping of the drawer that might be required.
- Continue with Connecting an EMX0 PCIe3 expansion drawer to your system.
- Ensure that you have the following
items before you start your installation:
- If you need to install your EMX0 PCIe3 expansion drawer into a rack, complete
the following steps:
- Ensure
that you have the following items before you start your installation:
- #1 and #2 Phillips screwdriver
- Flat-head screwdriver
- Rack with four Electronic Industries
Alliance (EIA) units of contiguous spaceNote: If you do not have a rack that is installed, install the rack. For instructions, see Racks and rack features.
- Help to lift the EMX0 PCIe3 expansion drawer into the rack, which requires three people.
- Determine where to install a new EMX0 PCIe3 expansion drawer. Consider several elements that include size, security, and environmental factors. For more information, see Site preparation and physical planning.
- Continue with Completing inventory for the EMX0 PCIe3 expansion drawer.
- Ensure
that you have the following items before you start your installation: