6 ContentsInternal SD Module . . . . . . . . . . . . . . . . . . . 87Installing the Internal SD Module. . . . . . . . . . 87Removing the Internal SD Module . . . . . . . . . 89Internal SD Flash Card . . . . . . . . . . . . . . . . . . 89Installing the Internal SD Flash Card . . . . . . . . 89Removing the Internal SD Flash Card. . . . . . . . 90Internal USB Memory Key . . . . . . . . . . . . . . . . 90Integrated Dell Remote Access Controller 6 (iDRAC6)Enterprise Card (Optional) . . . . . . . . . . . . . . . . 91Installing an iDRAC6 Enterprise Card. . . . . . . . 91Removing an iDRAC6 Enterprise Card . . . . . . . 93VFlash Media (Optional) . . . . . . . . . . . . . . . . . 94NIC Hardware Key . . . . . . . . . . . . . . . . . . . . 94Cooling Shroud . . . . . . . . . . . . . . . . . . . . . . 95Removing the Cooling Shroud . . . . . . . . . . . 96Installing the Cooling Shroud . . . . . . . . . . . . 97Cooling Fans . . . . . . . . . . . . . . . . . . . . . . . 97Removing a Cooling Fan . . . . . . . . . . . . . . 97Replacing a Cooling Fan . . . . . . . . . . . . . . 98Removing the Fan Bracket . . . . . . . . . . . . . 99Replacing the Fan Bracket . . . . . . . . . . . . 100Optical Drive . . . . . . . . . . . . . . . . . . . . . . 100Removing the Optical Drive . . . . . . . . . . . . 100Installing the Optical Drive . . . . . . . . . . . . 100Internal Tape Backup Unit . . . . . . . . . . . . . . . 104Installing the Tape Backup Unit. . . . . . . . . . 105Removing the Tape Backup Unit . . . . . . . . . 107