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Chapter 6. Solving problems 107
Ethernet controller problem Suggested Action
The server stops running
when loading device drivers.
The PCI BIOS interrupt settings are incorrect.
Check the following:
• Determine if the interrupt (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.
• Make sure that you are using the most recent device driver available from the
World Wide Web.
• Run the network diagnostic program.
If the problem remains, call for service.
The LAN activity light does
not light.
Check the following:
• Make sure that you have loaded the network device drivers.
• The network might be idle. Try sending data from this workstation.
• Run diagnostics on the LEDs.
• 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.
Data is incorrect or sporadic. Check the following:
• Make sure that you are using Category 5 cabling when operating the server at 100
Mbps.
• Make sure that the cables do not run close to noise-inducing sources like
fluorescent lights.
The Ethernet controller
stopped working when
another adapter was added
to the server.
Check the following:
• Make sure that the cable is connected to the Ethernet controller.
• Make sure that your PCI system BIOS code is current.
• Reseat the adapter.
• Determine if the interrupt (IRQ) setting assigned to the Ethernet adapter 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 adapter or the other device.
If the problem remains, call for service.
The Ethernet controller
stopped working without
apparent cause.
Check the following:
• Run diagnostics for the Ethernet controller.
• Try a different connector on the hub.
• Reinstall the device drivers. Refer to your operating-system documentation and
to the ServerGuide information.
If the problem remains, call for service.
Table 17. Ethernet troubleshooting chart