IBM 6000R Hardware Maintenance Manual - Page 42

Table 2. Ethernet troubleshooting chart Ethernet controller problem Suggested Action The Ethernet Transmit/ Receive Activity light does not light. Check the following: Note: The Ethernet Transmit/Receive Activity LED illuminates only when data is sent to or by this Ethernet controller. • 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 the PCI system BIOS 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. 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 the operating-system documentation and to the ServerGuide information. 30 Netfinity 6000R Type 8682 Models 1RY, 2RY