l
Serial Port 1
and
Serial Port 2
l
Parallel Port
l
IDE Drive Interface
l
Diskette Interface
l
USB Emulation
l
PC Speaker
l
Video DAC Snoop
Press <Enter> to configure these options as explained in the following subsections.
Sound
Sound
determines whether the integrated audio controller is
On
or
Off
. The default is
On
.
Network Interface Controller
Network Interface Controller
determines whether the integrated NIC is
On
,
Off
, or
On
w/ MBA
. The default is
On.
If you select
On w/ MBA
, you
are prompted to press <Ctrl><Alt><b> at the Dell logo screen during system boot. A menu then appears that allows you to select
PXE
,
RPL
,
BootP
, or
NetWare
as the active boot mode.
Mouse Port
Mouse Port
enables or disables the system's integrated Personal System/2 (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 system's integrated serial ports. You can set these options to
Auto
(the default) 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 integrated port to the next available port designation that shares the same IRQ setting as follows:
l
COM1
(input/output [I/O] address 3F8h), which shares IRQ4 with
COM3
, is remapped to
COM3
(I/O address 3E8h).
l
COM2
(I/O address 2F8h), which shares IRQ3 with
COM4
, is remapped to
COM4
(I/O address 2E8h).
Parallel Port
Parallel Port
configures the system's integrated parallel port. Press <Enter> to configure the
Parallel Port
options explained in the following
subsections.
Mode
You can set this option to
PS/2
,
EPP
,
ECP
,
AT
, or
Off
to disable the port.
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.
I/O Address
This option determines the I/O address used by the parallel port and appears except when
Mode
is set to
Off
. You can set
I/O Address
to
378h
(the default),
278h
, or
3BCh
.
DMA Channel
This option determines the direct memory access (DMA) channel used by the parallel port and appears only when
Mode
is set to
ECP
. The
available options are
DMA 1
,
DMA 3
, and
Off
.
IDE Drive Interface
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 you are using the Microsoft
®
Windows
®
95 or IBM
®
OS/2
®
operating system, you cannot use both serial ports at the
same time. If the second port (
COM3
or
COM4
) is also in use, the integrated port is turned off.
NOTE: Do not set
Parallel Port
to
278h
if you have an Enhanced Capabilities Port (ECP) device connected to the port.
