Preparing to upgrade 7-7Looking inside the system unitAfter 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. One bay is for 5.25-inch drive, two bays are for 3.5-inch drives. The fourth bay is for a factory-installed PCMCIA drive.Diskette drives use the standard diskette Advanced Technology (AT) interface. Harddisks 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:
