Asus A7V266-M - Manual (Page 73)

ASUS A7V266-M motherboard user guide 57
USB Legacy Support [Auto]
This motherboard supports Universal Serial Bus (USB) devices. The default
of [Auto] allows the system to detect a USB device at startup. If detected, the
USB controller legacy mode is enabled. If not detected, the USB controller
legacy mode is disabled. When you set this field to [Disabled], the USB
controller legacy mode is disabled whether or not you are using a USB device.
Configuration options: [Disabled] [Enabled] [Auto]
OS/2 Onboard Memory > 64M [Disabled]
When using OS/2 operating systems with installed DRAM of greater than
64MB, you need to set this option to [Enabled]. Otherwise, leave to the default
setting [Disabled]. Configuration options: [Disabled] [Enabled]