Asus P4B-E - Manual (Page 88)

4-20 Chapter 4: BIOS Setup
4.4.2 I/O Device Configuration
Floppy Disk Access Control [R/W]
When set to [Read Only], this parameter protects files from being copied to
floppy disks by allowing reads from, but not writes to, the floppy disk drive.
The default setting [R/W] allows both reads and writes. Configuration
options: [R/W] [Read Only]
Onboard Serial Port 1 [3F8H/IRQ4]
Onboard Serial Port 2 [2F8H/IRQ3]
These fields allow you to set the addresses for the onboard serial
connectors. Serial Port 1 and Serial Port 2 must have different addresses.
Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/
IRQ10] [Disabled]
UART2 Use As [COM Port]
This field allows you to select the device on which to assign UART2.
Configuration options: [COM Port] [IR] [Smart Card Reader]
Onboard PCI IDE [Both]
This field allows you to enable either the primary IDE channel or
secondary IDE channel, or both. You can also set both channels to
[Disabled]. Configuration options: [Both] [Primary] [Secondary] [Disabled]
Onboard PCI Audio [Enabled]
This field allows you to enable or disable the onboard PCI audio feature.
Configuration options: [Disabled] [Enabled]