# Custom Ringnode configuration

From the Custom configuration window you can:

- View and print information about a Ringnode's configuration.

- View the recommended configuration for a Ringnode, including: I/O location, memory address, interrupt channel (IRQ), DMA channel, RAM, ring speed, operational state, transfer mode, burnt in address.

- Configure a Ringnode to use specific resources including, I/O and interrupt.

- Configure an optional Smartrom.

- Run diagnostics to test a Ringnode and it's connection to the network. There are also a number of different additional parameters that can be used to control the basic diagnostics test. Use these parameters to specify particular transfer modes to select a range of different frames to use for the test.

- Reserve resources for a Ringnode that is not currently installed in your computer. (If scripting is enabled.)