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Diva USB: System BIOS Settings

There are certain situations when it may be necessary to alter the system BIOS settings of the PC when using USB equipment:

Enabling on-board USB.
It is possible that the on-board USB needs to be enabled via a BIOS setting, and it is currently disabled.

Using a USB Host Adapter.
If you are using a USB host adapter, and the system board of your PC also has a USB host adapter chipset on it which you are not using, it may be necessary to adjust the setup of, or disable, the system board USB chipset. This will enable Windows to correctly allocate resources to the appropriate devices.

Allocating Resources.
If you are experiencing problems with resource clashes you may wish to disable certain resources which were previously used by devices attached to the USB. For example, serial and parallel ports which were previously occupied by mice, printers, scanners, modems, etc. can be disabled to free resources if they are required elsewhere, such as by a USB Host adapter card.

In all these examples, you will need to consult your system documentation, or a systems advisor, concerning how to adjust the BIOS of the PC. Also, ensure that the entries in the BIOS are consistent with those in the USB settings in Windows Device Manager. See also the section on USB Standards and Compatibility.