Dell OptiPlex Gs Reference and Installation Guide (.pdf) - Page 33

NIC, Mouse, Serial Port 1 and Serial Port 2, Parallel Port, Hard Disk, Table 2-2.

Page 33 highlights

When POWER MANAGEMENT is set to DISABLED (the default option), the disks spin constantly as long as the system is turned on. Table 2-2. Power Time-Out Periods Power Management Setting EIDE Drive Spindown Time-Outs Monitor Standby TimeOuts Monitor Off TimeOuts DISABLED Never Never Never MAXIMUM 20 minutes 10 min- 1 hour utes REGULAR 20 minutes 20 min- 1 hour utes MINIMUM 20 minutes 1 hour Never NIC NIC enables or disables the system's optional network interface controller (NIC). Mouse MOUSE enables or disables the system's built-in PS/2compatible mouse port. Disabling the mouse allows an expansion card to use interrupt request (IRQ) 12. Serial Port 1 and Serial Port 2 SERIAL PORT 1 and SERIAL PORT 2 configure the system's built-in serial ports. These categories can be set to AUTO (the default option) to automatically configure a port, to a particular designation (COM1 or COM3 for SERIAL PORT 1; COM2 or COM4 for SERIAL PORT 2), or to OFF to disable the port. If you set a serial port to AUTO and add an expansion card containing a port configured to the same designation, the system automatically remaps the built-in port to the next available port designation that shares the same IRQ setting: • COM1 (input/output [I/O] address 3F8h), which shares IRQ4 with COM3, is remapped to COM3 (I/O address 3E8h). • Likewise, COM2 (I/O address 2F8h), which shares IRQ3 with COM4, is remapped to COM4 (I/O address 2E8h). NOTE: When two COM ports share an IRQ setting, you can use either port as necessary, but you may not be able to use them both at the same time. If the second port (COM3 or COM4) is also in use, the built-in port is turned off. For more information about built-in ports, port designations, IRQs, and the remapping of ports, see "Connecting External Devices" in your online System User's Guide. Parallel Port PARALLEL PORT configures the system's built-in parallel port. This category can be set to 378H (the default option), to alternate addresses 278H or 3BCH, or to OFF to disable the port. NOTE: Do not set PARALLEL PORT to 278H if you have an Extended 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 the Windows 95 operating system. Windows 95 uses ECP protocol automatically if it detects an ECP-capable device. Set this category 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. Hard Disk HARD DISK enables or disables the system's built-in EIDE hard-disk drive interface. With AUTO selected (the default option), the system turns off the built-in EIDE interface as 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 Using the System Setup Program 2-9

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Using the System Setup Program
2-9
When
POWER MANAGEMENT
is set to
DISABLED
(the
default option), the disks spin constantly as long as
the system is turned on.
NIC
NIC
enables or disables the system’s optional network
interface controller (NIC).
Mouse
MOUSE
enables or disables the system’s built-in PS/2-
compatible mouse port. Disabling the mouse allows an
expansion card to use interrupt request (IRQ) 12.
Serial Port 1 and Serial Port 2
SERIAL PORT 1
and
SERIAL PORT
2
configure the sys-
tem’s built-in serial ports. These categories can be set to
AUTO
(the default option) to automatically configure a
port, to a particular designation (
COM1
or
COM3
for
SERIAL PORT 1
;
COM2
or
COM4
for
SERIAL PORT 2
), or to
OFF
to disable the port.
If you set a serial port to
AUTO
and add an expansion card
containing a port configured to the same designation, the
system automatically remaps the built-in port to the next
available port designation that shares the same IRQ
setting:
COM1 (input/output [I/O] address 3F8h), which
shares IRQ4 with COM3, is remapped to COM3
(I/O address 3E8h).
Likewise, COM2 (I/O address 2F8h), which shares
IRQ3 with COM4, is remapped to COM4 (I/O
address 2E8h).
NOTE: When two COM ports share an IRQ setting, you
can use either port as necessary, but
you may not be able
to use them both at the same time
. If the second port
(COM3 or COM4) is also in use, the built-in port is
turned off.
For more information about built-in ports, port designa-
tions, IRQs, and the remapping of ports, see “Connecting
External Devices” in your online
System User’s Guide
.
Parallel Port
PARALLEL PORT
configures the system’s built-in parallel
port. This category can be set to
378H
(the default option),
to alternate addresses
278H
or
3BCH
,
or to
OFF
to disable
the port.
NOTE:
Do not set
PARALLEL PORT
to
278H
if you have
an Extended 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 the Windows 95 operating system. Windows 95 uses
ECP protocol automatically if it detects an ECP-capable
device.
Set this category 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.
Hard Disk
HARD DISK
enables or disables the system’s built-in EIDE
hard-disk drive interface.
With
AUTO
selected (the default option), the system turns
off the built-in EIDE interface as necessary to accommo-
date 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
Table 2-2.
Power Time-Out Periods
Power
Management
Setting
EIDE Drive
Spindown
Time-Outs
Monitor
Standby
Time-
Outs
Monitor
Off
Time-
Outs
DISABLED
Never
Never
Never
MAXIMUM
20 minutes
10 min-
utes
1 hour
REGULAR
20 minutes
20 min-
utes
1 hour
MINIMUM
20 minutes
1 hour
Never