Tomcat i7221A S5151
Chapter 3: BIOS Setup
3-19
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Note
This option is for the older USB 1.1 specification
USB 2.0 Controller
This option enables or disables IRQ allocation for the USB 2 (Universal Serial Bus -
Specification 2.0) controller. Enable this if you are using a USB 2 device. If you disable this
while using a USB 2 device, you may have problems running that device. However, if you
don't use any USB 2 devices, set the option to Disabled. It will free up an IRQ for other
devices to use.
Enabled
/ Disabled
Note
USB 2.0 has a throughput of 480 Mbps (40 times faster than USB 1.1)
and is fully backward compatible with USB 1.1.
USB Keyboard Support
Select “Enabled” if your system contains a USB controller and you have a USB keyboard.
Enabled /
Disabled
USB Mouse Support
Set this option to enabled if your system has a USB controller (including USB 2.0) and a USB
mouse.
Disabled
/ Enabled
Onboard i82551 LAN Ctrl
This is used to control the LAN function of onboard i82551.
.
Enabled
/ Disabled
Onboard LAN Boot ROM
This controls if the onboard LAN will is run on bootup. LAN Boot ROMs are used to download
operating system code from a network server. Options are:
Disabled
/ Enabled
Onboard BCM5721 LAN Ctrl1
This enables/disables the on board BCM5721 LAN1 controller. The default is Auto, which
automatically determines whether to enable or disable this chip.
Auto
/ Disabled / Enabled
Onboard BCM5721 LAN Ctrl2
This enables/disables the on board BCM5721 LAN1 controller. The default is Auto, which
automatically determines whether to enable or disable this chip.
Auto
/ Disabled / Enabled
