Dell OptiPlex GXa Service Manual - Page 17

Built-In SVGA Subsystem, Built-In Audio Controller

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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 Drive A or Drive B. The tape drive will then be listed as Not Installed (under either the Drive A or Drive B category). The OptiPlex NX system contains an integrated controller and diskette-drive connector but is not equipped with a diskette drive. If you run diskette-based diagnostics, this computer requires an external diskette drive kit as described in Chapter 2. Built-In SVGA Subsystem The OptiPlex GXa and OptiPlex NX systems include a built-in highperformance 64-bit accelerated graphics port (AGP) subsystem, implemented on the system board, which drives an external SVGA monitor. The AGP contains a dedicated bus that bypasses the PCI bus and allows for interconnection 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 resolutions include 1600 x 1200 pixels with 256 colors noninterlaced and 1024 x 768 pixels with 65,536 colors noninterlaced. The SVGA subsystem consists of the following major components: • ATI 3D Rage Pro SVGA video controller • 2-MB synchronous graphics random-access memory (SGRAM) video memory (expandable to 4 MB via a video-memory upgrade kit) • 15-hole monitor port Built-In Audio Controller The built-in 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. Built-In Ethernet NIC Support (Optional on EM System Board) The OptiPlex GXa systems and Optiplex NX systems are available with or without the built-in Ethernet NIC subsystem (optional if using the EM system board). The standard integrated 3Com 3C905 NIC does not support the Wakeup On LAN feature. Wakeup On LAN capability can be provided by an optional expansion card with a +5-VFP cable that connects to the P1 connector on the EM riser board. The integrated 10/100-Mbps 3Com® PCI 3C905 Ethernet NIC subsystem supports both the 10BASE-T and 100BASE-T standards. The NIC subsystem connects to the Ethernet network through a single RJ45 connector on the back System Overview 1-5

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System Overview
1-5
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 Drive A or Drive B. The tape drive will then be listed
as Not Installed (under either the Drive A or Drive B category).
The OptiPlex NX system contains an integrated controller and diskette-drive
connector but is not equipped with a diskette drive. If you run diskette-based
diagnostics, this computer requires an external diskette drive kit as described in
Chapter 2.
Built-In SVGA Subsystem
The OptiPlex GXa and OptiPlex NX systems include a built-in high-
performance 64-bit accelerated graphics port (AGP) subsystem, implemented
on the system board, which drives an external SVGA monitor. The AGP con-
tains a dedicated bus that bypasses the PCI bus and allows for interconnection
of the video subsystem directly to the Pentium chip set for the extra high perfor-
mance 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 resolutions include 1600 x 1200 pixels with 256 col-
ors noninterlaced and 1024 x 768 pixels with 65,536 colors noninterlaced. The
SVGA subsystem consists of the following major components:
•
ATI 3D Rage Pro SVGA video controller
•
2-MB synchronous graphics random-access memory (SGRAM) video
memory (expandable to 4 MB via a video-memory upgrade kit)
•
15-hole monitor port
Built-In Audio Controller
The built-in 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.
Built-In Ethernet NIC Support (Optional on EM System
Board)
The OptiPlex GXa systems and Optiplex NX systems are available with or
without the built-in Ethernet NIC subsystem (optional if using the EM system
board).
The standard integrated 3Com 3C905 NIC does not support the Wakeup On
LAN feature. Wakeup On LAN capability can be provided by an optional
expansion card with a +5-VFP cable that connects to the P1 connector on the
EM riser board.
The integrated 10/100-Mbps 3Com
®
PCI 3C905 Ethernet NIC subsystem sup-
ports both the 10BASE-T and 100BASE-T standards. The NIC subsystem
connects to the Ethernet network through a single RJ45 connector on the back