2. You might have to remove an adapter to gain access to the DIMM slots. See“Installing adapters”.3. To locate the DIMM connectors. See “Identifying parts on the system board” onpage 44.4. Open the retaining clips.5. Make sure the notches in the DIMM align with the tabs on the connector. Pushor insert the DIMM straight down into the connector until the retaining clipsclose.NotchesWhat to do next:v Replace any adapters that were removed.v Replace the power supply.v To work with another option, go to the appropriate section.v To complete the installation, go to “Replacing the cover and connecting thecables” on page 52.Installing adaptersThis section provides information and instructions for installing and removingadapters. Your computer has three expansion slots for peripheral componentinterconnect (PCI) adapters. You can install an adapter up to 330 mm (13 inches)long.To install an adapter:1. Remove the cover. See “Removing the cover” on page 41.46 User Guide