Asus P5S-B P5S-B User Manual - Page 56

IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode Auto

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IV. BIOS SETUP Parallel Port Mode (ECP+EPP) This field allows you to set the operation mode of the parallel port. The setting Normal, allows normal-speed operation but in one direction only; EPP allows bidirectional parallel port operation at maximum speed; ECP allows the parallel port to operate in bidirectional mode and at a speed faster than the maximum data transfer rate; ECP+EPP allows normal speed operation in a two-way mode. ECP DMA Select (3) This selection is available only if you select ECP or ECP+EPP in the Parallel Port Mode. Select either DMA Channel 1, 3, or Disabled. UART2 Use Infrared (Disabled) When enabled, this field activates the onboard infrared feature and sets the second serial UART to support the infrared module connector on the motherboard. If your system already has a second serial port connected to the onboard COM2 connector, it will no longer work if you enable the infrared feature. By default, this field is set to Disabled, which leaves the second serial port UART to support the COM2 serial port connector. See IrDA/Fast IR-Compliant Infrared Mdule Connector under section III. Onboard PCI IDE Enable (Both) You can select to enable the Primary IDE channel, Secondary IDE channel, Both, or Disable both channels (for systems with only SCSI drives). IDE Ultra DMA Mode (Auto) This sets the IDE UltraDMA to be active when using UltraDMA-capable IDE devices. The BIOS will automatically adjust or disable this setting for slower IDE devices so that Auto or high settings will not cause problems for older IDE devices. Choose Disable if you do not want this feature for all devices. IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto) Each channel (0 and 1) has both a master and a slave making four IDE devices possible. Because each IDE device may have a different Mode timing (0, 1, 2, 3, 4), it is necessary for these to be independent. PIO and DMA timings can be independently set. The default setting of Auto will allow autodetection to ensure optimal performance. IV. BIOS SETUP Chipset Features IV. BIOS SETUP Chipset Features 56 ASUS P5S-B User's Manual

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ASUS P5S-B User’s Manual
56
Chipset Features
IV. BIOS SETUP
IV. BIOS SETUP
IV. BIOS SETUP
Chipset Features
Parallel Port Mode (ECP+EPP)
This field allows you to set the operation mode of the parallel port. The setting
Normal
, allows normal-speed operation but in one direction only;
EPP
allows bidi-
rectional parallel port operation at maximum speed;
ECP
allows the parallel port to
operate in bidirectional mode and at a speed faster than the maximum data transfer
rate;
ECP+EPP
allows normal speed operation in a two-way mode.
ECP DMA Select (3)
This selection is available only if you select
ECP
or
ECP+EPP
in the
Parallel Port Mode
. Select either DMA Channel
1, 3
, or
Disabled
.
UART2 Use Infrared (Disabled)
When enabled, this field activates the onboard infrared feature and sets the second serial
UART to support the infrared module connector on the motherboard. If your system
already has a second serial port connected to the onboard COM2 connector, it will no
longer work if you enable the infrared feature. By default, this field is set to
Disabled
,
which leaves the second serial port UART to support the COM2 serial port connector.
See
IrDA/Fast IR-Compliant Infrared Mdule Connector
under section III.
Onboard PCI IDE Enable (Both)
You can select to enable the
Primary
IDE channel,
Secondary
IDE channel,
Both
, or
Disable
both channels (for systems with only SCSI drives).
IDE Ultra DMA Mode (Auto)
This sets the IDE UltraDMA to be active when using UltraDMA-capable IDE de-
vices. The BIOS will automatically adjust or disable this setting for slower IDE
devices so that Auto or high settings will not cause problems for older IDE devices.
Choose
Disable
if you do not want this feature for all devices.
IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto)
Each channel (0 and 1) has both a master and a slave making four IDE devices possible.
Because each IDE device may have a different Mode timing (
0, 1, 2, 3, 4
), it is necessary
for these to be independent. PIO and DMA timings can be independently set. The default
setting of
Auto
will allow autodetection to ensure optimal performance.