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5. IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple sector
read/write. If your IDE hard drive supports block mode, select Enabled to auto-detect the
optimal number of block read/writes per sector.
VIA OnChip PCI Device
This section provides information for setting the on-board devices. By choosing the
Integrated Peripherals option from the CMOS Setup Utility menu (Figure 3-5), the
following options are shown:
1. VIA AC97 Audio
This feature allows you to enable/disable the onboard AC97 audio function.
2. VIA OnChip LAN
This feature allows you to enable/disable the onboard LAN function.
3. Onboard Lan Boot ROM
Decide whether to invoke the boot ROM of the onboard LAN chip or not.
4. OnChip USB Controller
Enable the on-board Universal Serial Bus (USB 1.1) controller if you want to connect a
USB device to your system. Note that if this setting is disabled, you can still temporarily
use a USB keyboard during boot up so that you can enter BIOS and enable this setting.
If you pass the boot up stage without enabling this function, your PS/2 keyboard will no
longer work.
5. OnChip EHCI Controller
Enable the on-board Universal Serial Bus (USB 2.0) controller if you want to connect a
USB device to your system. Note that if this setting is disabled, you can still temporarily
use a USB keyboard during boot up so that you can enter BIOS and enable this setting.
If you pass the boot up stage without enabling this function, your PS/2 keyboard will no
longer work.
6. USB Keyboard Support
Select Enabled if your system has a USB keyboard installed on the system board. If your
system has no USB keyboard, select Disabled in this field.
Super IO Device
This section provides information on setting Super I/O device. Press [Enter] to enter the
sub-menu, which contains the following items for advanced control:
1. Onboard FDC Controller
Select Enabled if your system has a floppy disk controller (FDC) installed on the system
board and you wish to use it. If you install an add-in FDC or the system has no floppy
drive, select Disabled in this field.
Chapter 3
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