Preparing to upgrade 5-11Looking inside the system unit for microtower modelAfter you remove the system unit top, the system unit looks like the following figure.Note: See the next page for a description of the hardware components inside thesystem unit.Your computer has four bays that can hold up to two 5.25-inch drives and two 3.5-inch drives.Diskette drives use the standard diskette Advanced Technology (AT) interface.Hard disks use an Integrated Drive Electronics (IDE) AT interface. Your computersupports the American National Standards Institute (ANSI) standard for ATattachment disk drives.Your computer has adapter card slots for installation of additional expansion cards.You can install Peripheral Component Interconnect (PCI) adapter cards into thesystem.The components inside your system unit are depicted in a graphic in the previousfigure. The following list describes each hardware component:123456
