3Com 3CRWE777A manual Preliminary Troubleshooting, PCI Compatibility, Introduction

5 TROUBLESHOOTING

Introduction

This chapter describes troubleshooting procedures you can perform to solve basic problems.

Preliminary Troubleshooting

Check the following items before contacting 3Com

Technical Support.

PCI Compatibility

Some PCI computers are not self-configuring and require you to perform some or all of the following functions by motherboard jumper changes and/or BIOS Setup program configuration:

■Make sure your BIOS correctly supports the PCI Local Bus Specification v2.0 or later and upgrade your computer BIOS to the latest version.

■Verify that the PCI slot is an enabled bus-master slot and not a slave PCI slot. In some computers, the PCI slot must be configured to enable bus mastering. Refer to your computer’s manual and check the PCI BIOS Setup program to be sure the PCI slot is an enabled bus-master slot.

■In some computers, you may be required to disable Plug-n-Play (PnP) in the BIOS Setup program if resources are not properly assigned between installed cards.

■Some computers may require you to reserve interrupts and memory addresses for installed ISA cards to prevent PCI adapters from using the same settings. Refer to your computer’s manual and check the PCI BIOS Setup program configuration options for ISA cards.