Click on image to Zoom.
Windows automatically configures the device when you install a Plug and Play device and also ensures that it is compatible with other devices that are installed on the computer. During configuration, Windows operating system will assign a unique set of resources to the device. These include the following;
Interrupt request (IRQ) line numbers.
Direct memory access (DMA) channels.
Input / output (I/O) port addresses.
Memory address ranges.
The devices will not function as desired in case these resources have conflict with some other device on the computer.
You will have to manually assign these resources to devices in case they are fighting for the same resources. Some resources can be shared, depending on the drivers and computer. Example - The interrupts on PCI devices.
You will have to manually configure the resources for non PnP devices by following the instructions stated in the device manual.
