Dell PP14L Owner's Manual page 24

I N I C A R D M O D E M C O V E R
M P C I / — Covers the compartment that contains the Mini PCI card and the
modem. For more information, see "Modem" on page 90.
M E M O R Y M O D U L E C O V E R — Covers the compartment that contains the memory modules. For more
information, see page 88.
O P T I C A L - D R I V E L O C K I N G S C R E W — Secures the optical drive in the optical drive bay. For more
information, see "Optical Drive" on page 99.
S U B W O O F E R — Produces a broader bass output than is provided by the speakers.
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A Tour of Your Computer