Alignment pinsDrive retention clip4. Remove the retention clip from the drive and save it for future use.To install a CD or DVD drive, complete the following steps:1. Read the safety information that begins on page v and “Installation guidelines”on page 20.2. Make sure that the server and peripheral devices are turned off and that thepower cords and all external cables are disconnected. Remove the cover (see“Removing the cover” on page 22).3. Follow the instructions that come with the drive to set any jumpers or switches.Alignment pinsDrive retention clip4. Attach the drive retention clip to the side of the drive.5. Slide the drive into the CD/DVD drive bay until the drive clicks into place.If you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 38.Installing an optional PCI-X riser-card assemblyThe server comes with a PCI Express riser-card assembly installed. You canremove the assembly and install an optional PCI-X assembly. Seehttp://www.ibm.com/servers/eserver/serverproven/compat/us/ for a list of riser-cardassemblies you can install in the server.The PCI-X riser-card assembly provides one PCI-X expansion slot on the riser card.Install only a PCI-X or PCI adapter in the expansion slot.To install a PCI-X riser-card assembly, complete the following steps.1. Read the safety information that begins on page v and “Installation guidelines”on page 20.2. Turn off the server and peripheral devices, and disconnect the power cord andall external cables.3. Remove the cover (see “Removing the cover” on page 22).Chapter 2. Installing optional devices 33