16. Reinstall the retention clip to secure the battery or flash power module inplace.17. Close the SAS cable guide cover.If you have other devices to install or remove, do so now. Otherwise, go to“Completing the installation” on page 116.Installing a RAID adapter battery or flash power moduleWhen you install multiple RAID adapters that come with batteries or flash powermodules, the batteries or flash power modules must be installed remotely toprevent them from overheating. The batteries and flash power modules must beinstalled in the battery/flash power module trays that are located on top of theUSB/video assembly (in the front of the server). To install a RAID adapter batteryor flash power module remotely in the server, 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 and peripheral devices and disconnect all power cords andexternal devices; then, remove the top cover (see “Removing the server topcover” on page 36).3. Remove the fan cage assembly (see “Removing the fan cage assembly” onpage 245).4. Remove the microprocessor and memory expansion tray (see “Removing themicroprocessor and memory expansion tray assembly” on page 278) or DIMMair baffle (see “Removing the DIMM air baffle” on page 210), whichever one isinstalled.5. Connect one end of the battery cable or flash power module cable to the cachecard.6. Open the SAS cable guide cover.SAS cableguide7. Route the battery cable or flash power module cable along the side of thechassis and through the SAS cable guide.Chapter 2. Installing optional devices 87