3Com 3CR990 manual 3Com DOS, Configuration, Program, My Network Places icon, to Auto Select

52CHAPTER 8: CONFIGURATION

	Auto Select—allows the NIC to connect automatically at the duplex mode of the
	connected hub or switch.
	3CR990 NICs support full-duplex. These NICs automatically run in full-duplex
	mode if the switch that you are connected to supports auto negotiation and
	full-duplex.
3Com DOS	The configuration program within the DOS diagnostics program is used to
Configuration	configure a NIC installed in a PC running Windows 2000, Windows NT 3.51,
Program	or DOS.
	NOTE: To change configuration settings in Windows 2000, you can use either
	the DOS diagnostics program or the Advanced tab (accessible through the
	My Network Places icon).
	NOTE: On the Configuration screen, when you choose the Auto Select setting
	for Media Type, the setting for Duplex is automatically changed to Auto Select.
	Selecting Auto Select for Duplex automatically changes the Media Type setting
	to Auto Select.

To run the DOS diagnostics program:

1Boot to DOS (see note following), and then insert the EtherCD in the CD-ROM drive.

NOTE: For PCs running Windows 2000 or Windows NT 3.51, do not run the DOS diagnostics program from the MS-DOS box. Exit Windows, reboot with a DOS-bootable diskette, and then run the program.

If you do not have a DOS-bootable diskette

Go to: Making a DOS-Bootable Diskette.

2Enter the following at the DOS prompt:

d:\3c99xcfg.exe

If multiple NICs are installed in the PC, select Select NIC on the first screen to display a list of installed NICs. Use the arrow keys to select the NIC that you want to configure and press Enter.

3Use the arrow keys to scroll the list and make a selection. Press Enter.

4Continue this procedure for other options. For more information on a specific option, select the option and press F1

NOTE: Press Esc to return to a previous screen. If a secondary window is open, press Esc to close the window.