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3. Remove adapters and disconnect the cables and power connectors to all
4. Reconnect all ac power cords and turn on the computer. If the computer starts
To use this method, it is important to know the minimum configuration required for a
system to start (see page 117).
Troubleshooting the Ethernet controller
This section provides troubleshooting information for problems that might occur with
the 10/100/1000 Mbps Ethernet controller.
Information is also available on the Ethernet controller documentation on the Device
Drivers and IBM Enhanced Diagnostics CD for information about problems that
might occur with the 1 Gbps Ethernet controller.
The way the Ethernet controller is tested depends on which operating system you
are using (see the Ethernet controller device driver README file).
If testing indicates that the hardware is functioning normally but the problem still
exists, see "Network connection problems" or inform the network administrator.
Network connection problems
If the Ethernet controller cannot connect to the network, check the following
conditions:
v Make sure that the cable is installed correctly.
v Determine whether the hub supports auto-negotiation. If it does not, try
v Check the Ethernet controller LEDs on the rear of the computer.
v Make sure that you are using the correct device drivers which are supplied with
v Check for operating-system-specific causes for the problem.
v Make sure that the device drivers on the client and computer are using the same
Ethernet controller troubleshooting chart
Use the following troubleshooting chart to find solutions to 10/100/1000 Mbps
Ethernet controller problems that have definite symptoms.
32
IBM IntelliStation E Pro Types 6216 and 6226: Hardware Maintenance Manual
internal and external devices until the computer is at the minimum configuration
required to start the computer (see "Minimum operating requirements" on page
117).
up successfully, replace adapters and devices one at a time until the problem is
isolated. If the computer does not start up from the minimal configuration,
replace FRUs of minimal configuration one at a time until the problem is
isolated.
The network cable must be securely attached at all connections. If the cable is
attached but the problem remains, try a different cable.
If you set the Ethernet controller to operate at either 100 Mbps or 1000 Mbps,
you must use Category 5 or higher cabling.
configuring the integrated Ethernet controller manually to match the speed and
duplex mode of the hub.
The Ethernet link status LED, on the rear of the computer, is lit when the
Ethernet controller receives a LINK pulse from the hub. If the LED is off, there
might be a defective connector or cable or a problem with the hub.
the computer.
protocol.
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