Dell OptiPlex GXi Service Manual (.pdf) - Page 28

Hard-Disk Drive Options, Low-Profile Computers, Midsize Computers, Mini Tower Computers - boot cd

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Hard-Disk Drive Options The following subsections provide service-related information about hard-disk drive options in the low-profile, midsize and mini tower computers. Low-Profile Computers The hard-disk drive assembly (consisting of the hard-disk drive and the harddisk drive bracket) is located inside the chassis at the left front of the computer and is attached to the bottom of the chassis. One EIDE or SCSI 1-inch-high hard-disk drive can be mounted on the hard-disk drive bracket. Midsize Computers The hard-disk drive bracket is located next to the externally accessible drive bays at the front of the computer. The hard-disk drive bracket can contain either one or two 1-inch-high EIDE or SCSI hard-disk drives, or one 1-inch-high EIDE or SCSI hard-disk drive and one 1.6-inch-high EIDE or SCSI hard-disk drive. Mini Tower Computers The hard-disk drive bracket is located beneath the externally accessible drive bays at the front of the computer. The hard-disk drive bracket can contain either one or two 1-inch-high EIDE or SCSI hard-disk drives, or one 1-inch-high EIDE or SCSI hard-disk drive and one 1.6-inch-high EIDE or SCSI hard-disk drive. Enhanced Dual-Interface EIDE Subsystem The EIDE subsystem provides two mode-4, DMA bus-mastered EIDE interfaces, each of which can support up to two EIDE devices. The EIDE controller attaches to the high-speed PCI local bus. The primary EIDE interface (IDE1) provides support for up to two highperformance EIDE devices. The computer's boot drive should be connected to the primary EIDE interface. The secondary EIDE interface (IDE2) also provides support for up to two highperformance EIDE devices, typically EIDE tape drives or CD-ROM drives. NOTE: The externally accessible drive bays at the front of the computer are normally used for diskette drives, CD-ROM drives, and/or tape drives. Harddisk drives should be installed in the internal hard-disk drive positions described in "Hard-Disk Drive Options" found earlier in this chapter. For detailed information about the data storage subsystem, see Chapter 7, "Installing Drives," in the Reference and Installation Guide. Built-In Video Controller The video subsystem consists of a high-speed, high-resolution video controller built into the system board. Because the video controller connects to the PCI bus rather than to the ISA bus, communication between the video subsystem and the 1-10 Dell OptiPlex GXi Systems Service Manual

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Dell OptiPlex GXi Systems Service Manual
Hard-Disk Drive Options
The following subsections provide service-related information about hard-disk
drive options in the low-profile, midsize and mini tower computers.
Low-Profile Computers
The hard-disk drive assembly (consisting of the hard-disk drive and the hard-
disk drive bracket) is located inside the chassis at the left front of the computer
and is attached to the bottom of the chassis. One EIDE or SCSI 1-inch-high
hard-disk drive can be mounted on the hard-disk drive bracket.
Midsize Computers
The hard-disk drive bracket is located next to the externally accessible drive
bays at the front of the computer. The hard-disk drive bracket can contain either
one or two 1-inch-high EIDE or SCSI hard-disk drives, or one 1-inch-high
EIDE or SCSI hard-disk drive and one 1.6-inch-high EIDE or SCSI hard-disk
drive.
Mini Tower Computers
The hard-disk drive bracket is located beneath the externally accessible drive
bays at the front of the computer. The hard-disk drive bracket can contain either
one or two 1-inch-high EIDE or SCSI hard-disk drives, or one 1-inch-high
EIDE or SCSI hard-disk drive and one 1.6-inch-high EIDE or SCSI hard-disk
drive.
Enhanced Dual-Interface EIDE Subsystem
The EIDE subsystem provides two mode-4, DMA bus-mastered EIDE inter-
faces, each of which can support up to two EIDE devices. The EIDE controller
attaches to the high-speed PCI local bus.
The primary EIDE interface (IDE1) provides support for up to two high-
performance EIDE devices. The computer’s boot drive should be connected to
the primary EIDE interface.
The secondary EIDE interface (IDE2) also provides support for up to two high-
performance EIDE devices, typically EIDE tape drives or CD-ROM drives.
NOTE: The externally accessible drive bays at the front of the computer are
normally used for diskette drives, CD-ROM drives, and/or tape drives. Hard-
disk drives should be installed in the internal hard-disk drive positions
described in “Hard-Disk Drive Options” found earlier in this chapter. For detailed
information about the data storage subsystem, see Chapter 7, “Installing Drives,” in
the
Reference and Installation Guide
.
Built-In Video Controller
The video subsystem consists of a high-speed, high-resolution video controller
built into the system board. Because the video controller connects to the PCI bus
rather than to the ISA bus, communication between the video subsystem and the