Chapter3 BIOS Setup
36
User’s Manual
Parallel Port Mode :
This option specifies the parallel port mode. ECP and EPP are both bi-directional data
transfer schemes that adhere to the IEEE P1284 specifications. The default setting is
Normal
. The other
settings are:
Setting Description
Normal
Normal The normal parallel port mode is used. This is the default setting.
Bi-Dir
Bi-Dir Use this setting to support bi-directional transfers on the parallel port.
EPP
The parallel port can be used with devices that adhere to the Enhanced
Parallel Port (EPP) specification. EPP uses the existing parallel port signals
to provide asymmetric bi-directional data transfer driven by the host device.
ECP
The parallel port can be used with devices that adhere to the Extended
Capabilities Port (ECP) specification. ECP uses the DMA protocol to
Achieve transfer rates of approximately 2.5 Mbs. ECP provides symmetric
Bi-directional communications.
EPP+ECP
It allows normal speed operation in a two-way mode.
EPP Version:
This option specifies the Enhanced Parallel Port specification version number that is used in
the system. This option only appears if the Parallel Port Mode option is set to EPP.
The settings are 1.7 or 1.9. There are no Optimal and Fail-Safe default settings because the default setting
for the Parallel Port Mode option is not EPP.
Parallel Port DMA Channel:
This option is only available if the setting for the Parallel Port Mode option is
ECP. This option sets the DMA channel used by the parallel port. The settings are (DMA Channel0, 1, or 3.
The Optimal and Fail-Safe default settings are not provided.
Parallel Port IRQ:
This option specifies the IRQ used by the parallel port. The settings are Auto, (IRQ) 5,
or (IRQ) 7. The Optimal and Fail-Safe default settings are Auto.
Onboard IDE:
This option specifies the IDE channel used by the onboard IDE controller. The settings are
Disabled, Primary, or Secondary. The Optimal and Fail-Safe default settings are Disabled.
OnBoard AC’97 Audio:
This option let you enable or disable the onboard AC’97 Audio function.
Onboard Legacy Audio
:
This option let you enable or disable the onboard Legacy Audio function.
Sound Blaster:
This option let you enable or disable the onboard Sound Blaster function.
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