Windows System Resources

System resources can include one or more of the following:

1. Interrupt request (IRQ) line numbers
2. Direct memory access (DMA) channels
3. Input/output (I/O) port addresses
4. Memory address ranges

Generally, you should not manually change resource settings. Doing so causes the settings to become fixed, which means that Windows 2000 will have less flexibility when allocating resources to other devices. If too many resources become fixed, Windows 2000 may be unable to install additional Plug and Play devices. So, although you can manually configure device properties and settings, you should let Windows 2000 configure properties and settings automatically.
Each assigned resource must be unique, or the device will not function properly.