6. Touch the static-protective package that contains the DIMM to any unpaintedmetal surface on the outside of the server. Then, remove the DIMM from thepackage.7. Turn the DIMM so that the alignment slot align correctly with the alignment tab.8. Insert the DIMM into the connector by aligning the edges of the DIMM with theslots at the ends of the DIMM connector (see “System-board optional devicesconnectors” on page 38 for the locations of the DIMM connectors).9. Firmly press the DIMM straight down into the connector by applying pressure onboth ends of the DIMM simultaneously. The retaining clips snap into the lockedposition when the DIMM is firmly seated in the connector.Note: If there is a gap between the DIMM and the retaining clips, the DIMMhas not been correctly inserted; open the retaining clips, remove theDIMM, and then reinsert it.If you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 101.Replacing a PCI riser-card assemblyNote: PCI riser-card brackets must be installed even if you do not install anadapter.To replace a PCI riser-card assembly, complete the following steps:1. Read the safety information that begins on page vii and the “Installationguidelines” on page 38.2. Turn off the server and peripheral devices and disconnect the power cords andall external cables.Note: When you disconnect the power source from the server, you lose theability to view the LEDs because the LEDs are not lit when the powersource is removed. Before you disconnect the power source, make anote of which LEDs are lit, including the LEDs that are lit on theoperation information panel, on the light path diagnostics panel, andChapter 2. Installing optional devices 65