Chapter 2
Installation and Configuration
2-8
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•
Parallel Port Mode
—The PC industry has created several different
modes of operation for this port over the years. Usually, the default
setting works for all applications. However, if a parallel port device
specifically requires a nondefault setting, you can change it here.
The default is
Bidirectional
, for full IEEE 1284 capabilities.
•
Legacy USB Support
—Use this setting to use a USB keyboard and
mouse as if they were standard PS/2-style peripherals. You
must
enable
this setting to use these devices in operating systems with no USB
support and to boot from a USB floppy or CD-ROM. The BIOS setup
screen always works with USB keyboards regardless of this setting.
Certain real-time applications may require you to disable this setting
to reduce loop time jitter. The default is
Enabled
.
•
AHCI Configuration
—This setting determines whether AHCI mode
is
Enabled
or
Disabled
for the SATA port. Some operating systems,
such as Windows 2000, do not support AHCI mode. You can use this
setting to disable AHCI mode so that non-compatible OSes function
correctly. The default setting is
Enabled
.
•
Multi-Core Processing
—This setting determines whether or not the
second core processor on the Intel
®
Core
™
Duo processor T2500 is
enabled. The default setting is
Enabled
.
•
Monitor DDC
—This setting determines how the monitor DDC is
routed. Use this setting to select whether or not the DDC is routed for
an Analog monitor or a DVI monitor. In order to use a DVI monitor,
this setting must be set to
DVI
. An analog monitor, however, will
function with this option set to either
Analog
or
DVI
. The DDC
communication path is only enabled when set to
Analog
for an analog
monitor, so certain advanced features of your analog monitor may only
be enabled when routing DDC to
Analog
. The default setting is
DVI
.
Note
After changing DDC routing settings, a power cycle is required to enable the change.
•
ExpressCard Hot-Plug Resources
—This setting determines whether
or not resource pre-allocation is
Enabled
or
Disabled
for the
ExpressCard port. When this setting is
Enabled
, the BIOS will
pre-allocate memory space, I/O space, and PCI bus numbers for the
ExpressCard port, allowing non-PCI Express-aware operating systems
to support hot-plugging ExpressCard devices. When this setting is
Disabled
, no resources will be pre-allocated, and you may need to
restart the OS when hot-plugging an ExpressCard device. The default
setting is
Enabled
.
•
Hot-Plug Bus Gap
—This setting determines the number of PCI buses
that will be reserved by the BIOS for ExpressCard PCI-PCI bridges
