Nortel Networks NN44200-700 manual TroubleAction

40Chapter 3 Hardware troubleshooting

TroubleAction

All DSP diagnostics fail at system startup.

All the DSPs and DS30 links are reported as "All busy", but the monitor shows that the resources are only partially busy (Option 11 Meridian 1 configurations only).

Ensure that the MPB16-4 boards are release 5 or later.

Ensure that the PCI backplane does not have Intel PCI bridge chips.

Shut down the server and open the lid. Power up the server and check if the PCI LED on the MPB16-4 board is still on after startup. If the LED still stays on, shut down the server and replace the board.

If the PCI LED comes on at system startup and then turns off, but the other four green LEDs are still off after the system booted to the operating system, check the HAL and ensure that all its components are working properly. If the HAL components are working properly, one or more MPC8 cards can be defective. Replace the defective MPC8 cards.

If your system has two MPB16-4 boards and both have the same symptoms, ensure that the correct driver is installed.

If only one MPB16-4 board seems to be defective, swap the boards. If the presumed defective board works after the swapping, then the PCI backplane is defective and you must replace it. If the presumed defective board does not work, then you must replace it.

The switch and the CallPilot system do not have the same ground connection. Ensure that both systems are plugged into the same power outlet and connected to a single-point ground reference.

The system starts up but attempts to boot to the operating system from the network.

The RAID packs are either not configured or degraded. The RAID system is not operational. Proceed as follows:

•Power down the system, plug the RAID card into the next set of four PCI slots and then turn on the system. If the system boots correctly to the operating system, then the PCI backplane is defective and you must replace it.

•Power down the system, open the server lid and turn on the system. If more than four lights remain on, the RAID controller is faulty. Power down the system, reseat the controller card, and turn on the system. If this action does not remedy the trouble, then the RAID controller card is defective and you must replace it.

Nortel CallPilot

Troubleshooting Reference Guide

NN44200-700 01.05 Standard

5.026 June 2007

Copyright © 2007, Nortel Networks