IBM 8688 troubleshooting, chart

Ethernet controller troubleshooting chart
Use the following troubleshooting chart to find solutions to 10/100/1000 Mbps
Ethernet controller problems that have definite symptoms.
Ethernet controller problems FRU/actions
The server stops running when
loading device drivers.
Check the following:
v Make sure that you are using the most recent device driver available from the
World Wide Web.
v Reseat or replace the adapter.
Ethernet link status LED does not
work.
Check the following:
v Make sure that the hub is turned on.
v Check all connections at the Ethernet controller and at the hub.
v Use another port on the hub.
v If the hub does not support auto-negotiation, manually configure the Ethernet
controller to match the hub.
v If you manually configured the Duplex mode, make sure that you also
manually configure the speed.
v Reseat or replace the adapter.
The Ethernet transmit/receive
activity LED does not work.
Check the following:
v Make sure that you have loaded the network device drivers.
v The network might be idle. Try sending data from this server.
Data is incorrect or sporadic. Check the following:
v Make sure that you are using Category 5 or higher cabling when operating the
server at 100 Mbps or at 1000 Mbps.
v Make sure that the cables do not run close to noise-inducing sources like
fluorescent lights.
Ethernet controller messages
The integrated Ethernet controller might display messages from certain device
drivers. The latest information available concerning these messages will be made
available at the IBM Support Web site at http://www.ibm.com/eserver/xseries.
76 IBM xSeries 450 Type 8688: Hardware Maintenance Manual and Troubleshooting Guide