Table 10. Online-spare DIMM connector assignmentsActive DIMMsRequired online-spare memoryDIMMsEmptyconnectors1 and 4 2 and 5 3, 6, 7, 8, 9, 10, 11,and 121, 4, 7, and 10 2, 5, 8, and 11 3, 6, 9, and 121, 4, 7, and 102, 5, 8, and 113, 6, 9, and 12 noneTo install a DIMM, complete the following steps.1. Open the retaining clip on each end of the DIMM connector.2. Touch the static-protective package that contains the DIMM to any unpaintedmetal surface on the server. Then, remove the DIMM from the package.3. Turn the DIMM so that the DIMM keys align correctly with the connector.4. Insert the DIMM into the connector by aligning the edges of the DIMM with theslots at the ends of the DIMM connector. Firmly press the DIMM straight downinto the connector by applying pressure on both ends of the DIMMsimultaneously. The retaining clips snap into the locked position when theDIMM is firmly seated in the connector. If there is a gap between the DIMMand the retaining clips, the DIMM has not been correctly inserted; open theretaining clips, remove the DIMM, and then reinsert it.5. Repeat steps 1 through 4 until all the new or replacement DIMMs are installed.6. Replace the air baffle over the DIMMs (see “Installing the DIMM air baffle” onpage 96).7. Replace the riser-card assembly (see “Installing the riser-card assembly” onpage 98).8. Install the cover (see “Installing the cover” on page 91).9. Slide the server into the rack.10. Reconnect the external cables; then, reconnect the power cords and turn onthe peripheral devices and the server.Removing a hot-swap fanAttention: To ensure proper server operation and cooling, if you remove a fanyou must install a replacement fan as soon as possible.116 IBM System x3650 Type 7979 and 1914: Problem Determination and Service Guide
