2. Align the tabs on the sides of the DIMM air baffle with the slots on the sides ofthe chassis wall and lower the DIMM air baffle into the server.DIMM air baffle3. Reinstall the cover (see “Replacing the server top cover” on page 207).4. Slide the server into the rack.5. Reconnect the power cord and any cables that you removed.6. Turn on the peripheral devices and the server.Attention: For proper cooling and airflow, replace the air baffle before turningon the server. Operating the server with an air baffle removed might damageserver components.Removing an adapterTo remove an adapter, complete the following steps:1. Read the safety information that begins on page “Safety” on page vii and“Installation guidelines” on page 33.2. Turn off the server (see “Turning off the server” on page 21) and all attachedperipheral devices. Disconnect all power cords; then, disconnect all externalcables as necessary to replace the device.3. Remove the server cover (see “Removing the server top cover” on page 206).4. Remove the adapter from a PCIe slot on the system board.a. Disconnect any cables (including external cables) from the adapter.b. Lift up the adapter retention latch that secures the adapterc. Carefully grasp the adapter by its top edge or upper corners, and pull theadapter from the connector on the system board and set it aside. Go to step6 on page 213.5. Remove the adapter from the PCIe riser-card assembly.212 System x3750 M4 Types 8722 and 8733: Installation and Service Guide