Usb Host Controller; Smbus Interrupt (Irq) - Acer Power User Manual

USB Host Controller

This parameter lets you enable or disable the USB controller on board. When enabled, it
activates the USB function of the system. When disabled, it deactivates the function. The
default setting is Enabled.
USB Legacy Mode
This function, when enabled, lets you use a USB keyboard in DOS. Set this to Disabled
to deactivate the USB keyboard function in DOS. The default setting is Disabled.
SMBus Interrupt (IRQ9)
The System Management Bus (SMBus) is used to control and get information from
devices on a motherboard. The system management software uses SMBus hardware and
software interfaces to access the information about the devices attached to the SMBus.
The default setting is Disabled.
AcerPower Minitower (M11E/IDCATX-2) User's Guide