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System Overview 1-5
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The OptiPlex GX1/GX1p and OptiPlex NX1 systems are equipped with an inte-
grated diskette drive controller (PIIX4e) that can support a maximum of two
non-EIDE diskette and tape drives via a 34-pin DSKT connector located on the
system board. The low-profile chassis can accommodate only one external
drive device (diskette drive or tape drive). Other chassis configurations can
accommodate two external drive devices.
NOTES: If the diskette drive and tape drive are both attached to the diskette
drive controller on the system board, only the diskette drive is configured in
the System Setup program as
Diskette Drive A
or
Diskette Drive B
. The tape
drive is then listed as
Not Installed
(under either the
Diskette Drive A
or
Diskette Drive B
option).
The OptiPlex NX1 system contains an integrated controller and diskette drive
connector, but is not equipped with a diskette drive. If you run the diskette-
based diagnostics, this computer requires an external diskette-drive kit as
described in Chapter 2, “Basic Troubleshooting.”
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The OptiPlex GX1/GX1p and OptiPlex NX1 systems include an integrated
high-performance 64-bit accelerated graphics port (AGP) subsystem, imple-
mented on the system board, which drives an external SVGA monitor. The
AGP contains a dedicated bus that bypasses the PCI bus and allows for inter-
connection of the video subsystem directly to the Pentium chip set for the
extra-high performance required for 3D video subsystems. This architecture
also off-loads the PCI bus, providing greater performance for devices attached
to the PCI bus.
The maximum supported resolution is 1600 x 1200 with 65,535 colors at
75 Hz. The SVGA subsystem consists of the following major components:
ATI RAGE PRO TURBO video controller
4-MB synchronous graphics random-access memory (SGRAM) video
memory (expandable to 8 MB via a video-memory upgrade kit); 8 MB stan-
dard on the GX1p
15-hole monitor port
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The integrated audio controller is a single chip that connects to the ISA bus.
The audio controller has analog jacks for line-in and microphone input. The
single line-out output jack provides stereo output for a line-level input to an
external amplifier or drives stereo headphones. See “Technical Specifications”
found later in this chapter for audio jack input and output specifications.