10-2 Internal Cabling DiagramsINTERFACE CABLESThis section describes the connections of the interface cables.Addition of Hard Disk DriveThe connection required when a hard disk drive is added is described below.3.5-inch Disk ModelNo additional cable is required to install the hard disk drives. Fill the drive bay with the hard diskdrives from the bottom to top bay.5.25-inch device bayFourthhard disk driveHDD cageOptical disk drivePowersupplyMother boardIDE cable SATA cableThirdhard disk driveSecondhard disk driveFirsthard disk drive