Solving Network Problems - HP Xw9400 - Workstation - 16 GB RAM Reference Manual

Table 6-12 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 6-13 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.
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.
Solution
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Ensure DIMMs are loaded in the correct
slots.
2. Reseat DIMMs.
3. Replace DIMMs one at a time to isolate the
faulty module.
4. Replace third-party memory with HP
memory.
5. Replace the system board.
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Ensure that auxiliary power cable is
connected correctly, if applicable.
2. Reseat the graphics card.
3. Replace the graphics card.
4. 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.
Troubleshooting scenarios and solutions 153