IBM 220 manual Ethernet controller problem Suggested Action

Ethernet controller problem		Suggested Action
The server stops running	The PCI BIOS interrupt settings are incorrect.
when loading device drivers.	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	Check the following:
not light.	•	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	Check the following:
stopped working when	•	Make sure that the cable is connected to the Ethernet controller.
another adapter was added
	•	Make sure that your PCI system BIOS code is current.
to the server.
	•	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	Check the following:
stopped working without	•	Run diagnostics for the Ethernet controller.
apparent cause.
	•	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

Chapter 6. Solving problems 107