Dell OptiPlex GX1 - Manual (Page 79)

System Setup Options: Dell OptiPlex GX1 Small-Form-Factor System User's Guide
file:///C|/infodev/2013/eDoc/OpGX1/UG/setupopt.htm[2/21/2013 11:47:16 AM]
alternate addresses 278h or 3BCh, or to Off to disable the port.
NOTE: Do not set Parallel Port to 278h if you have an Enhanced Capabilities Port (ECP) device
connected to the port.
Parallel Mode
Parallel Mode controls whether the system’s built-in parallel port acts as an AT-compatible (unidirectional)
or PS/2-compatible (bidirectional) port.
Your system also supports ECP mode, which can be used by Windows 95 and Windows 98. Windows 95 and
Windows 98 use ECP protocol automatically if the operating system detects an ECP-capable device,
eliminating the need for an ECP setting in this option.
Set this option according to the type of peripheral device connected to the parallel port. To determine the
correct mode to use, see the documentation that came with the device.
IDE Hard Disk
IDE Hard Disk enables or disables the system’s built-in EIDE hard-disk drive interface.
With Auto (the default option) selected, the system turns off the built-in EIDE interface when necessary to
accommodate a controller card installed in an expansion slot.
As part of the boot routine, the system first checks for a primary hard-disk drive controller card installed in an
expansion slot. If no card is found, the system enables the built-in EIDE interface to use IRQ14 and IRQ15.
If a primary controller is detected on the expansion bus, the built-in EIDE interface is disabled.
Selecting Off disables the built-in EIDE interface.
Diskette
Diskette controls the operation of the system’s built-in diskette drive controller.
With Auto (the default) selected, the system turns off the built-in diskette drive controller when necessary to
accommodate a controller card installed in an expansion slot.
With Write Protect selected, nothing can be written to diskette drives and tape drives using the system’s
built-in diskette drive controller. (The system can still read from the drives.) When this option is selected, the
Auto option (whereby the system turns off the built-in diskette drive controller as necessary) is also in effect.
Selecting Off turns off the built-in diskette/tape drive controller; this option is used primarily for
troubleshooting purposes.
Speaker
Speaker determines whether the on-board speaker is On (the default) or Off. A change to this option takes