IBM system x3530 m4 (7160k2g, 90y8826 х4, 49y3760, 00d4413) [274/402] Solving ethernet controller problems

IBM system x3530 m4 (7160k2g, 90y8826 х4, 49y3760, 00d4413) [274/402] Solving ethernet controller problems
Video problems
See “Monitor and video problems” on page 250.
Solving power problems
Power problems can be difficult to solve. For example, a short circuit can exist
anywhere on any of the power distribution buses. Usually, a short circuit will
cause the power subsystem to shut down because of an overcurrent condition. To
diagnose a power problem, use the following general procedure:
1. Turn off the server and disconnect all ac power cords.
2. Check for loose cables in the power subsystem. Also check for short circuits, for
example, if a loose screw is causing a short circuit on a circuit board.
3. If the system-error LED on the system board is lit, complete the following
steps:
a. Check the IMM2 event log. To access the web interface, see “Logging on to
the Web interface” on page 87.
b. If a log indicates that there is a power rail failure, find the location of the
failed power rail on the system board.
c. Disconnect the cables and power cords to all internal and external devices
(see “Internal cable routing” on page 276). Leave the power-supply cords
connected.
d. Remove each component that is associated with the failed power
component, one at a time, restarting the server each time, until the cause of
the failure is identified.
e. Replace the identified component.
4. Reconnect all power cords and turn on the server. If the server starts
successfully, replace the adapters and devices one at a time until the problem is
isolated.
If the server does not start from the minimum configuration, see “Power-supply
LEDs” on page 114 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.
Try the following procedures:
v Make sure that the correct device drivers, which come with the server are
installed and that they are at the latest level.
v Make sure that the Ethernet cable is installed correctly.
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.
258 System x3530 M4 Type 7160: Installation and Service Guide

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