Ethernet Controller Troubleshooting Chart - IBM IntelliStation M Pro User Manual

v Test the Ethernet controller.

Ethernet controller troubleshooting chart

You can use the following troubleshooting chart to find solutions to 10/100 Mbps
Ethernet controller problems that have definite symptoms.
Table 4. Ethernet troubleshooting chart
Ethernet controller problem
The computer stops running
when loading device drivers.
The LAN activity light does
not light.
Data is incorrect.
The Ethernet controller
stopped working when
another adapter was added
to the computer.
The Ethernet controller
stopped working without
apparent cause.
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IntelliStation M Pro: User Guide
The way you test the Ethernet controller depends on which operating system
you are using (see the Ethernet controller device driver README file).
Suggested Action
The PCI BIOS IRQ 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 BIOS Setup Utility program.
Although interrupt sharing is possible 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 IRQ settings 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 persists, 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.
Check the following:
v Make sure that you are using Category 5 cables when operating the computer at
100 Mbps.
v Make sure that the cables do not run close to noise-inducing sources like
fluorescent lights.
Check the following:
v Make sure that the cable is connected to the Ethernet controller.
v Make sure that your PCI computer BIOS is current.
v Reseat the adapter.
v Determine if the IRQ setting assigned to the Ethernet adapter is also assigned to
another device in the BIOS Setup Utility program.
Although interrupt sharing is possible 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 adapter or the other device.
If the problem persists, call for service.
Check the following:
v Run diagnostics for the Ethernet controller.
v Try a different connector on the hub.
v Reinstall the device drivers. Refer to your operating system documentation and to
"Recovering or installing device drivers" on page 69 in this publication.
If the problem remains, call for service.