IBM eServer 380 xSeries User Reference Manual

Also see for eServer 380 xSeries: Installation guide

Contents

74 xSeries 380: User’s ReferenceEthernet controller troubleshooting chartYou can use the following troubleshooting chart to find solutions to 10/100 MbpsEthernet controller problems that have definite symptoms.Ethernet controllerproblemSuggested actionThe server stops runningwhen 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 alsoassigned to another device in the BIOS Setup Utility program.Although interrupt sharing is allowed for PCI devices, some devices do not functionwell when they share an interrupt with a dissimilar PCI device. Try changing theIRQ assigned to the Ethernet controller or the other device.• Make sure that you are using the most recent device driver available from the WorldWide Web.• Run the network diagnostic program.If the problem remains, call for service.Data is incorrect or sporadic. Check the following:• Make sure that you are using Category 5 cabling when operating the server at 100Mbps.• Make sure that the cables do not run close to noise-inducing sources likefluorescent lights.The Ethernet controllerstopped working whenanother adapter was addedto the server.Check the following:• Make sure that the cable is connected to the Ethernet controller.• Make sure that your PCI system BIOS is current.• Reseat the adapter.• Determine if the interrupt (IRQ) setting assigned to the Ethernet adapter is alsoassigned to another device in the BIOS Setup Utility program.Although interrupt sharing is allowed for PCI devices, some devices do not functionwell when they share an interrupt with a dissimilar PCI device. Try changing theIRQ assigned to the Ethernet adapter or the other device.If the problem remains, call for service.The Ethernet controllerstopped working withoutapparent 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 tothe ServerGuide information.If the problem remains, call for service.