Download Preface

OnChip USB Controller (All Enabled)
Enable this item if you plan to use the Universal Serial Bus ports on this
motherboard.
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.
USB Mouse Support (Disabled)
Enable this item if you plan to use a USB mouse.
IDE HDD Block Mode (Enabled)
Enable this field if your IDE hard drive supports block mode. Block mode enables 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.
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