Ethernet Controller Troubleshooting Chart - IBM xSeries 200 Hardware Maintenance Manual

v Check for operating server-specific causes for the
problem.
v Make sure that the device drivers on the client and
server are using the same protocol.
v Test the Ethernet controller.
The way you test the Ethernet controller depends on
which operating system you are using (see the Ethernet
controller device driver README file).
Ethernet controller troubleshooting
chart
You can use the following troubleshooting chart to find
solutions to 10/100 Mbps Ethernet controller problems that
have definable symptoms.
Table 3. Ethernet troubleshooting chart
Ethernet
controller
problem
The server
stops running
when loading
device drivers.
The LAN activity
light (when
available) does
not light.
24
Hardware Maintenance Manual: xSeries 200
Suggested Action
The PCI BIOS interrupt settings are incorrect.
Check the following:
v Determine if the IRQ setting assigned to the
Ethernet controller is also assigned to
another device in the Configuration/Setup
Utility program.
Although interrupt sharing is allowed for PCI
devices, some devices do not function well
when they share an interrupt with a
dissimilar PCI device. Try changing the IRQ
assigned to the Ethernet controller or the
other device. For example, for NetWare
Versions 3 and 4 it is recommended that
disk controllers not share interrupts with LAN
controllers.
v Make sure that you are using the most
recent device driver available from the World
Wide Web.
v Run the network diagnostic program.
If the problem remains, call for service.
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 workstation.
v Run diagnostics on the LEDs.
v The function of this LED can be changed by
device driver load parameters. If necessary,
remove any LED parameter settings when
you load the device drivers.