Removing a ServeRAID SAS/SATA controllerUse this information to remove a ServeRAID SAS/SATA controller.About this taskThe ServeRAID SAS/SATA controller can be installed in the dedicated connectoron the system board or PCI riser-card slots (see “System-board internal connectors”on page 28 for the location of the connectors).You can replace the ServeRAID controller with another supported ServeRAIDcontroller. For a list of supported ServeRAID controllers, see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.Note: For brevity, in this documentation the ServeRAID SAS/SATA controller isoften referred to as the SAS/SATA adapter or the ServeRAID adapter.To remove the SAS/SATA adapter from the system board, complete the followingsteps:Procedure1. Read the safety information that begins on “Safety” on page vii and“Installation guidelines” on page 33.2. Turn off the server and peripheral devices and disconnect all power cords.3. Remove the cover (see “Removing the cover” on page 36).4. Remove PCI riser-card assembly 1 if necessary (see “Removing a PCI riser-cardassembly” on page 244).5. Locate the SAS/SATA adapter between PCI slot 1 and microprocessor 1.6. Disconnect the signal cables and power cables from the connectors on theSAS/SATA adapter and note their locations.7. Grasp the end of the SAS/SATA adapter near microprocessor 1 while you slidethe brackets. Slide the retention bracket (near the chassis) toward the chassis;then, slide the other retention bracket toward the power supplies.Figure 150. ServeRAID adapter removal254 IBM System x3550 M4 Type 7914: Installation and Service Guide