IBM 86645RY Hardware Maintenance Manual - Page 67

Controller problem Ethernet Link Status light does not light. The Ethernet Transmit/Receive Activity light does not light. Data is incorrect or sporadic. Action Check the following: Make sure that the hub is turned on. Check all connections at the Ethernet controller and the hub. Check the cable. A crossover cable is required unless the hub has an X designation. Use another port on the hub. If the hub does not support auto-negotiation, manually configure the Ethernet controller to match the hub. If you manually configured the duplex mode, make sure that you also manually configure the speed. Run diagnostics for the LEDs. If the problem still exists, run the server diagnostic programs (see "Diagnostic programs" on page 10) and check with the LAN administrator. 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. 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. Netfinity 5600 - Type 8664 59