Network Problems - Compaq DESKPRO 2000 SERIES Maintenance & Service Manual

2.5.11 Network Problems

Some common causes and solutions for network problems are listed in the following table. These
guidelines do not discuss the process of debugging network cabling.
Problem
System does not detect a network
controller.
System Configuration utility reports
unprogrammed EPROM.
Diagnostics reports a failure.
2-36 Troubleshooting
Table 2-28
Network Problems
Cause
Possible I/O address conflict with
another expansion board.
1. Possible I/O address conflict with
another expansion board.
2. The network controller is defective.
3. Network drivers are loaded.
1. Possible I/O address conflict with
another expansion board.
2. The cable is not securely connected.
3. The cable is attached to the incorrect
connector.
4. There is a problem with the cable or a
device at the other end of the cable.
5. The network controller is defective.
6. Network controller interrupt or
memory overlaps the interrupt or
memory of an expansion board.
Solution
Factory default is 300h to 30Fh for Ethernet. Either
remove and reconfigure the conflicting expansion
board, or reconfigure the network controller. If the
address is changed, ensure that the drive
parameters match the new I/O address for the
network controller.
1. Factory default is 300h to 30Fh for Ethernet. Either
remove and reconfigure the conflicting expansion
board, or reconfigure the network controller. If the
address is changed, ensure that the drive
parameters match the new I/O address for the
network controller.
2. Replace the controller or the system board.
3. Boot the computer without the network drivers,
using a system boot diskette, and reconfigure the
network controller.
1. Factory default is 300h to 30Fh for Ethernet. Either
remove and reconfigure the conflicting expansion
board, or reconfigure the network controller. If the
address is changed, ensure that the drive
parameters match the new I/O address for the
network controller.
2. Ensure that the cable is securely attached to the
network connector and that the other end of the
cable is securely attached to the correct device.
3. Ensure that the cable is attached to the correct
connector.
4. Ensure that the cable and device at the other end
are operating correctly.
5. Replace the controller or the system board.
6. Run Computer Setup and modify the network
controller memory value.
Continued