94 CHAPTER 6: TROUBLESHOOTING FOR WINDOWS 95/98 AND WINDOWS NT
Changing the I/O Base Address or
the Interrupt Request Level
If you discover that you have a resource conflict, you can
change the I/O base address or the interrupt request level
(IRQ). If you are adding new hardware to your system, you
may need to change a resource assignment to avoid a conflict.
The following procedures describe how to change resource
allocations for your Windows 95/98 or Windows NT PC.
Windows 95/98
Follow these steps to change the IRQ level assignment
or the I/O base address in a Windows 95/98 PC:
1 Double-click the My Computer icon, double-click
the Control Panel icon, and then double-click the
System icon.
The System Properties window is displayed.
2 Select the Device Manager tab, double-click
Network adapters, and then double-click
3Com EtherLink 10 ISA Adapter.
3 Select the Resources tab.
4 Depending on the type of conflict that you have,
select either Input/Output Range or Interrupt Request.
5 Select the resource that you want to change (IRQ
or Input/Output Range) and select Change Settings.
(If these options appear dimmed, clear the Use
automatic settings check box.)
6 Scroll to a value that you know is available, and then
click OK.
You recorded available IRQ values during the preinstallation
procedure. See “Performing the Preinstallation Procedure”
on page 30.
Before you reboot Windows 95/98, make sure that the
value that you assign to a resource matches the value for
the same resource in the NIC Configuration Settings screen
(similar to that shown in Figure 28 on page 49) in the
3Com NIC Diagnostic program.
7 Close all open windows and restart the PC.
The hardware conflict should be resolved. If not, consult
your system administrator.
Book Page 94 Monday, June 7, 1999 8:55 AM
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