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USB Controller (Enabled)
Enable this item if you plan to use the Universal Serial Bus ports on this main-
board.
USB Keyboard Support (Disabled)
Enable this item if you plan to use a keyboard connected through the USB
port in a legacy operating system (such as DOS) that does not support Plug
and Play.
AC97 Audio (Auto)
Enables and disables the onboard audio chip. Disable this item if you are go-
ing to install a PCI audio add-on card.
AC97 Modem (Auto)
Enables and disables the onboard modem. Disable this item if you are going
to install an external modem.
Onboard PCI LAN (Enabled)
Select Enabled if your system contains a built-in PCI LAN controller.
Onboard LAN BOOT ROM (Disabled)
This item allows you to enable or disable the onboard LAN Boot ROM function.
Init Display First (PCI Slot)
Use this item to specify whether your graphics adapter is installed in one of
the PCI slots or is integrated on the mainboard.
IDE HDD Block Mode (Enabled)
Enable this field if your IDE hard drive supports block mode. Block mode en-
ables BIOS to automatically detect the optimal number of block read and
writes per sector that the drive can support and improves the speed of access
to IDE devices.
Onboard FDC Controller (Enabled)
This option enables the onboard floppy disk drive controller.
Onboard Serial Port 1 (3F8/IRQ4)
This option is used to assign the I/O address and interrupt request (IRQ) for
the onboard serial port 1 (COM1).
Onboard Parallel Port (378/IRQ7)
This option is used to assign the I/O address and interrupt request (IRQ) for
the onboard parallel port.
Parallel Port Mode (ECP)
Enables you to set the data transfer protocol for your parallel port. There are
four options: SPP (Standard Parallel Port), EPP (Enhanced Parallel Port),
ECP (Extended Capabilities Port), and ECP+EPP.
SPP allows data output only. Extended Capabilities Port (ECP) and Enhanced
Parallel Port (EPP) are bi-directional modes, allowing both data input and output.
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