Attention: Static electricity that is released to internal server components whenthe server is powered-on might cause the server to stop, which could result in theloss of data. To avoid this potential problem, always use an electrostatic-dischargewrist strap or other grounding system when working inside the server with thepower on.To install a DIMM, complete the following steps:1. Read the safety information that begins on page vii and “Installation guidelines”on page 29.2. Turn off the server and peripheral devices and disconnect the power cords andall external cables, if necessary.3. Remove the cover (see “Removing the side cover” on page 32).4. Open the retaining clip on each end of the DIMM connector.Attention: To avoid breaking the retaining clips or damaging the DIMMconnectors, open and close the clips gently.5. 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.6. Turn the DIMM so that the DIMM keys align correctly with the connector.7. 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-deviceconnectors” on page 25 for the location of the DIMM connectors).8. 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 the DIMM, andthen reinsert it.If you have other devices to install or remove, do so now; otherwise, go to“Completing the installation” on page 62.Chapter 2. Installing optional devices 39