To remove the SAS controller from a SAS riser-card, complete the following steps:1. Read the safety information that begins on page vii and “Installation guidelines”on page 37.2. Turn off the server and peripheral devices and disconnect all power cords andexternal cables (see “Turning off the server” on page 22).3. Remove the cover (see “Removing the cover” on page 44).4. Locate the SAS riser-card and controller assembly near the left-front corner ofthe server.5. Disconnect the SAS signal cables from the connectors on the SAS controllerand note their locations.6. Remove the SAS controller assembly, which includes the SAS riser-card, fromthe server (see “Removing the SAS riser-card and controller assembly” on page117).16-drive-capable server model:Tape-enabled server model:7. Pull the SAS controller horizontally out of the connector on the SAS riser-card.8. If you are replacing the SAS controller with another supported SAS controller,continue with “Installing a ServeRAID SAS controller on the SAS riser-card.”Installing a ServeRAID SAS controller on the SAS riser-cardImportant: If you have installed a SAS expander card in a 16-drive-capable server,the SAS controller is installed in a PCI riser-card assembly and is installed andremoved the same way as any other PCI adapter. Do not use the instructions in thistopic; use the instructions in “Installing a PCI adapter” on page 52 and “Removing aPCI adapter” on page 56.122 System x3650 M3 Types 4255, 7945, and 7949: Installation and User’s Guide
