Cisco 7206VXR Installation Guide - Page 130

Troubleshooting the Processor Subsystem Chapter 6 Troubleshooting the Installation • Is the power OK LED on for the second (redundant) power supply? - If yes, the power source is good and this power supply is functional. To continue with troubleshooting the process proceed to the "Troubleshooting the Processor Subsystem" section on page 6-6. - If not, repeat each of the preceding procedures for the second power supply. Note After powering off the router, wait at least 30 seconds before powering it on again. If you are unable to resolve the problem or you determine that either a power supply or chassis connector is faulty, contact a service representative for instructions. Troubleshooting the Processor Subsystem The processor subsystem comprises the I/O controller, network processing engine, and all port and service adapters. The I/O controller and network processing engine are required system components. The system cannot operate unless the I/O controller and network processing engine are installed properly; however, the system can operate without any port or service adapters installed as long as none are in partial contact with the midplane pins. A port or service adapter that is partially connected to the midplane sends incomplete signals to the processor, which faults the PCI bus and causes the system to hang. Therefore, first ensure that the I/O controller and the network processing engine are installed properly and the system software has initialized successfully. Then, if necessary, you can troubleshoot individual port and service adapters. Troubleshooting the I/O Controller The procedures in this section assume that the I/O controller, network processing engine, and router itself are in the original factory configuration, and that you have not made changes to your configuration file. If the I/O controller LEDs do not go on as expected (refer to the "Identifying Startup Problems" section on page 6-3 section in this chapter), check the following items to help isolate the problem. • Do all of the I/O controller LEDs remain off when the system power switch is turned on? - If the LEDs stay off, first refer to the sections "Troubleshooting the Power Subsystem" section on page 6-5 and "Troubleshooting the Cooling Subsystem" section on page 6-7 to ensure that both the fans and the power supply are functioning properly. - If the power supply and fans appear operational but none of the I/O controller LEDs are on, suspect that an improperly connected I/O controller or port adapter has hung the system. Tighten all captive installation screws, and then restart the system. - With the power supply turned off, reseat the I/O controller in its slot and restart the router. • Is the I/O controller enabled LED on? - If yes, the system software has initialized successfully, and the system is operational. - If the enabled LED remains off, the system detected a processor hardware failure. (This LED should be on in normal operation.) Contact a service representative for instructions. Cisco 7206 Installation and Configuration Guide 6-6 OL-5102-02