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52 Chapter 3 Hardware troubleshooting
Internal LEDs
Description Information
MPB96 board LEDs The three red LEDs at the top of the MPB96 board are visible through
the grill at the back of the server.
• The PCI FPGA Done LED (the closest to the card I/O bracket)
comes on at startup and turns off immediately. This indicates
that the board works properly and was detected correctly by the
system. If this LED stays on after the startup, the card is defective
and must be replaced.
•
The DSP FPGA Done LED comes on at startup and stays on
until the CallPilot drivers are loaded and the diagnostic screen
appears. If the LED stays on after the operating system starts and
the CallPilot diagnostic screen appears, then the MPB96 board is
defective or the DSP and NTBus drivers do not function properly.
•
The CTbus FPGA Done LED (the farthest from the card I/O
bracket) works in tandem with the DSP FPGA Done LED and
turns on and off at the same time.
POST Beep Codes
If an error occurs before video initialization, the POST emits beep codes
that indicate errors in hardware, software, or firmware.
A beep code is a series of separate tones, each equal in length. Record the
beep code sequence before calling Nortel technical support.
Beep count Description
1, 2, or 3
A Memory error occurred. Reseat the memory
or replace the DIMMs with known good
modules.
4–7or9–11
A fatal error occurred and indicates a possible
serious system problem. Remove all the add-in
cards and restart the system. If the error still
occurs, contact Nortel support. If the beep
codes are not generated after you remove
the add-in cards, insert the cards one at a
time, booting the system between each card
addition, until the beeps again occur to reveal
the malfunctioning card.
8
A problem with the onboard video card occurred
indicating a fault on the server board.
Nortel CallPilot
Troubleshooting Reference Guide
NN44200-700 01.05 Standard
5.0 26 June 2007
Copyright © 2007, Nortel Networks
.