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7-8
IBM Personal Computer User Guide
Switching power supply.
The system comes with a switching power
supply.
Bay 1.
This drive bay can accommodate a 5.25-inch half-high drive such
as a diskette, hard disk, tape, or CD-ROM. In many models, this bay holds
a factory-installed CD-ROM drive.
Bay 2.
This drive bay can accommodate a 5.25-inch device, such as a
5.25-inch diskette drive, CD-ROM drive, or DVD-ROM drive. You can also
install a 3.5-inch to 5.25-inch installation kit.
Bay 3.
This drive bay can accommodate a 3.5-inch slim IDE hard disk. In
many models, this bay holds a factory-installed hard disk drive.
Bay 4.
This drive bay can accommodate a 3.5-inch slim drive such as a
diskette or tape. In many models, this bay holds a factory-installed diskette
drive.
System board.
The system board is secured by screws on the inner base
of the chassis.
Slot for speaker jack
(for unpowered speaker only)
Expansion slots.
There are three expansion slots on the system board
for the installation of adapter cards that conform to Peripheral Component
Interconnect (PCI) specifications. These cards are commonly referred to
as PCI adapter cards.
Modem card.
The system may include a V.90 Data/Fax modem. See
“Appendix B: Modem features” on page B-1 for details on modems.
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