HP Professional ap550 Compaq Professional Workstation AP550 Maintenance & - Page 112

Network Problems, Table 4-11

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4-18 Compaq Professional Workstation AP550 Maintenance and Service Guide Network Problems The process of debugging network cabling is not discussed. Table 4-11 Network Problems Problem System does not detect a network controller. System Setup utility reports unprogrammed EPROM. Cause 1. Possible driver problem. 2. Controller is disabled in setup. 3. Possible failed network controller. 1. The network controller is defective. 2. Network drivers are not loaded. Diagnostics reports a failure. 1. The cable is not securely connected. 2. The cable is attached to the incorrect connector. 3. There is a problem with the cable or a device at the other end of the cable. 4. The network controller is defective. 5. Network controller interrupt or memory overlaps the interrupt or memory of an expansion board. Solution 1. Load latest version of the Compaq Restore CD. 2. Run Computer Setup and enable the controller. 3. Replace the system board. 1. Replace the controller or the system board. 2. Boot the workstation without the network drivers, using a system boot diskette, and reconfigure the network controller. 1. Be sure the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. 2. Be sure that the cable is attached to the correct connector. 3. Be sure that the cable and device at the other end are operating correctly. 4. Replace the controller or the system board. 5. Run Computer Setup and modify the network controller memory value. continued

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4-18
Compaq Professional Workstation AP550 Maintenance and Service Guide
Network Problems
The process of debugging network cabling is not discussed.
Table 4-11
Network Problems
Problem
Cause
Solution
System does not detect a network
controller.
1.
Possible driver problem.
2.
Controller is disabled in
setup.
3.
Possible failed network
controller.
1.
Load latest version of the
Compaq Restore CD.
2.
Run Computer Setup and
enable the controller.
3.
Replace the system board.
System Setup utility reports
unprogrammed EPROM.
1.
The network controller is
defective.
2.
Network drivers are not
loaded.
1.
Replace the controller or the
system board.
2.
Boot the workstation without
the network drivers, using a
system boot diskette, and
reconfigure the network
controller.
Diagnostics reports a failure.
1.
The cable is not securely
connected.
2.
The cable is attached to the
incorrect connector.
3.
There is a problem with the
cable or a device at the
other end of the cable.
4.
The network controller is
defective.
5.
Network controller interrupt
or memory overlaps the
interrupt or memory of an
expansion board.
1.
Be sure the cable is securely
attached to the network
connector and that the other
end of the cable is securely
attached to the correct
device.
2.
Be sure that the cable is
attached to the correct
connector.
3.
Be sure that the cable and
device at the other end are
operating correctly.
4.
Replace the controller or the
system board.
5.
Run Computer Setup and
modify the network
controller memory value.
continued