Solving Ethernet Controller Problems - Lenovo x3550 M4 Installation And Service Manual
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5. Remove the adapters and disconnect the cables and power cords to all internal
6. Reconnect all power cords and turn on the server. If the server starts
Results
If the server does not start from the minimum configuration, see "Power-supply
LEDs" on page 137 to replace the components in the minimum configuration one
at a time until the problem is isolated.
Solving Ethernet controller problems
The method that you use to test the Ethernet controller depends on which
operating system you are using. See the operating-system documentation for
information about Ethernet controllers, and see the Ethernet controller
device-driver readme file.
About this task
Try the following procedures:
Procedure
v Make sure that the correct device drivers, which come with the server are
v Make sure that the Ethernet 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 panel of the server. These LEDs
Table 17. Components associated with power rail errors (continued)
Pwr rail error in the IMM event log Components
Pwr rail 6 error
d. Replace the identified component.
and external devices until the server is at the minimum configuration that is
required for the server to start (see "Power-supply LEDs" on page 137 for the
minimum configuration).
successfully, reseat the adapters and devices one at a time until the problem is
isolated.
installed and that they are at the latest level.
– The 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 100 Mbps, you must use
Category 5 cabling.
– If you directly connect two servers (without a hub), or if you are not using a
hub with X ports, use a crossover cable. To determine whether a hub has an X
port, check the port label. If the label contains an X, the hub has an X port.
configuring the integrated Ethernet controller manually to match the speed and
duplex mode of the hub.
indicate whether there is a problem with the connector, cable, or hub.
v Optional adapter (if one is installed) in PCI
riser-card assembly 2
v PCI riser-card assembly 2
v Dual-port network adapter (if one is installed)
v Fan 5
v Fan 6
v DIMMs 19 through 24
Chapter 4. Troubleshooting
171
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Troubleshooting
