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Solving Network Problems - HP Xw8400 - Workstation - 4 GB RAM User Manual

Hp xw8400 service and technical reference guide.
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Table 5-12
Hardware installation problems (continued)
Problem
Power LED flashes Red five times,
once every second, followed by a
two second pause, and the
workstation beeps five times.
Power LED flashes Red six times,
once every second, followed by a
two second pause, and the
workstation beeps six times.

Solving network problems

These guidelines do not discuss the process of debugging the network cabling.
Table 5-13
Network problems
Problem
Wake-on-LAN feature is not
functioning.
Network driver does not detect
network controller.
Network status link light does not
turn on or it never flashes.
The network status light should
flash when there is network
activity.
Diagnostics reports a failure.
ENWW
Cause
Memory is installed incorrectly
or is bad.
Video card is not seated
properly or is bad, or system
board is bad.
Cause
Wake-on-LAN is not enabled.
Network controller is disabled.
Incorrect network driver.
No active network is detected.
Network controller is not set up
properly.
Network driver is not properly
loaded.
System cannot auto-sense the
network.
The cable is not securely
connected.
The cable is attached to the
incorrect connector.
There is a problem with the cable
or a device at the other end of the
cable.
Network controller interrupt is
shared with an expansion board.
Solution
1.
Reseat DIMMs.
2.
Replace DIMMs one at a time to isolate the faulty
module.
3.
Replace third-party memory with HP memory.
4.
Replace the system board.
For systems with a graphics card:
1.
Reseat the graphics card.
2.
Replace the graphics card.
3.
Replace the system board.
Solution
Use the Network control application to enable Wake-on-
LAN.
Run Computer Setup and enable network controller.
Check the network controller documentation for the
correct driver, or obtain the latest driver from the
manufacturer's website.
Check cabling and network equipment for proper
connection.
Use the network control application to verify that the
device is working properly.
Reinstall network drivers.
Disable auto-sensing capabilities and force the system
into the correct operating mode.
Be sure that both ends of the data cable are securely
connected.
Be sure that the cable is attached to the correct connector.
Be sure that the cable and device at the other end are
operating correctly.
Under the Computer Setup Advanced menu, change the
resource settings for the board.
Troubleshooting scenarios and solutions
121

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