3. Lower the fan into the fan slot in the server and ensure that is it seatedcorrectly.4. Connect the system fan cable to the connector on the system board. (see“System-board internal connectors” on page 26)5. Install the server top cover (see “Replacing the server top cover” on page 260).6. Reconnect the external cables; then, reconnect the power cords and turn on theperipheral devices and the server.Removing a memory moduleUse this information to remove a memory module.About this taskTo remove a dual inline memory module (DIMM), complete the following steps:Procedure1. Read the safety information that begins on page “Safety” on page vii and“Installation guidelines” on page 32.2. Turn off the server (see “Turning off the server” on page 22) and all attachedperipheral devices. Disconnect all power cords; then, disconnect all externalcables as necessary to replace the device.3. Remove the server top cover (see “Removing the server top cover” on page258).4. Rotate the hot-swap rear hard disk drive cage up (see “Rotating the hot-swaprear hard disk drive cage up” on page 168).5. Remove the PCI riser-card assembly (see “Removing a PCI riser-card assembly”on page 206).6. Remove the air baffle (see “Removing the air baffle” on page 261).7. Carefully flip open the retaining clip on each end of the DIMM connector andlift the DIMM from the connector.Attention: To avoid breaking the retaining clips or damaging the DIMMconnectors, open and close the clips gently.Figure 97. Rear fan installation186 System x3650 M4 BD Type 5466: Installation and Service Guide