6. Connect the power cord to the server and check if the IMM is recovered.
System-event log
This topic provides information about the types of messages contained in the
system-event log.
The system-event log contains messages of three types:
Information
Information messages do not require action; they record significant
system-level events, such as when the server is started.
Warning
Warning messages do not require immediate action; they indicate possible
problems, such as when the recommended maximum ambient temperature
is exceeded.
Error Error messages might require action; they indicate system errors, such as
when a fan is not detected.
Each message contains date and time information, and it indicates the source of the
message (POST or the IMM).
Solving Ethernet controller problems
This topic provides troubleshooting procedures to try when solving Ethernet
controller problems.
The method that you use to test the Ethernet controller depends on which
operating system and which switch you are using. See the operating-system and
switch 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 the Ethernet controller is set to operate at 100 Mbps, you must use
Category 5 cabling.
v Determine whether the switch supports auto-negotiation. For auto-negotiation
problem determination procedures, see the switch documentation. If the switch
does not support auto-negotiation, try configuring the integrated Ethernet
controller manually to match the speed and duplex mode of the switch.
v Check the Ethernet controller LEDs on the rear panel of the server. These LEDs
indicate whether there is a problem with the connector, cable, or switch.
– The Ethernet link status LED is lit when the Ethernet controller receives a link
pulse from the switch. If the LED is off, there might be a defective connector
or cable or a problem with the switch.
– The Ethernet transmit/receive activity LED is lit when the Ethernet controller
sends or receives data over the Ethernet network. If the Ethernet
transmit/receive activity light is off, make sure that the switch and network
are operating and that the correct device drivers are installed.
76 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Problem Determination and Service Guide
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