IBM totalstorage 200, Service Manual

Page: 27 / 180

Ethernet controller messages
The integrated Ethernet controller might display messages from the following device
drivers:
v
NDIS Adapter for level 4.0 (Windows NT)
NDIS 4.0 (Windows NT) driver messages
This section contains the error messages for the NDIS 4.0 drivers. The explanation
and recommended action are included with each message.
Table 1. NDIS (Windows NT) driver messages for the Ethernet controller
Message Explanation Action
No Secondary Adapter Found. Grouping
Mode is disabled. The failover option requires an adapter
that is compatible with the device driver
of the Ethernet controller on the system
board. No such adapter was found. Make sure the correct adapter is installed.
Problem Occurs on the Primary Adapter.
Switching over to the Secondary Adapter. The system detected a problem with the
primary Ethernet connection and has
transferred all network traffic to the
secondary Ethernet controller Identify the cause of the failure on the
primary Ethernet connection. Restoring the
operational state of the primary connection
will cause the network traffic to
automatically transfer to the primary
Ethernet controller.
Switching back to Primary Adapter. The primary Ethernet connection is now
operating correctly. Network traffic will
automatically transfer to the primary
Ethernet controller. None needed, message is for information
only.
Power checkout
Power problems can be difficult to troubleshoot. 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.
A general procedure for troubleshooting power problems is as follows:
1. Switch OFF the system and disconnect the ac cords.
2. Check for loose cables in the power subsystem. Also check for short circuits; for
example, if there is a loose screw causing a short circuit on a circuit board.
3. Remove adapters and disconnect the cables and power connectors to all
internal and external devices until the system is at the minimum configuration
required for power-on (see page 41).
4. Reconnect the ac cord and switch ON the system. If the system starts
successfully, replace adapters and devices one at a time until the problem is
isolated. If the system does not start from minimal configuration, replace parts of
the minimal configuration one at a time until the problem is isolated.
To use this method it is important to know the minimum configuration required for a
system to start (see page 27). For specific problems, see “Power error messages”
on page 38.
Chapter 1. Troubleshooting
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