Table 4. Network adapter problems and service actions (continued)
Problem
Service action
Adapter suddenly stops working
1. If the system was recently installed, moved,
serviced, or upgraded, verify that the adapter is
seated properly and all associated cables are
correctly connected.
2. Inspect the PCIe socket and verify that there is
no dirt or debris in the socket.
3. Inspect the card and verify that it is not
physically damaged.
4. Verify that all cables are properly seated and
are not physically damaged. If you recently
added one or more new adapters, remove them
and then test to determine whether the failing
adapter is functioning properly again. If the
network adapter is functioning again, review the
IBM support tips to confirm that there are no
PCI address, driver, or firmware conflicts. Then,
reinstall the new adapters again one at a time
until all adapters function properly.
5. Replace the adapter.
6. If the adapter is connected to a PCIe riser,
replace the PCIe riser.
7. If the adapter is in UIO slot 1, UIO slot 2, or UIO
slot 3, replace CPU 1. Otherwise, replace CPU 2.
8. Replace the system backplane.
Link indicator light on the adapter is off
1. Verify that the cable functions properly by
testing it with a known working connection.
2. Verify that the port or ports on the switch are
enabled and functional.
3. Verify that the switch and adapter are
compatible.
4. Replace the adapter.
Link light on the adapter is on, but there is no
communication from the adapter
1. Verify that the most recent driver is installed, or
install the most recent driver if it is not already
installed.
2. Verify that the adapter and its link have
compatible settings, such as speed and duplex
configuration.
Other problems
For information about adapter diagnostics, see
Supporting diagnostics. For information about
adapter user information, see User guides for PCIe
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