Nortel CallPilot NN44200-700 Troubleshooting Manual page 32

32 Chapter 3 Hardware troubleshooting
Trouble symptom
The system does not
start, but emits beeps. No
information is displayed on
screen.
The system displays
information on screen,
emits long beeps separated
by pauses, but does not
boot to the operating
system.
Copyright © 2007, Nortel Networks
.
Action
Identify the type of beeps that your system emitted.
• The system board beeps are usually short; their pattern is
identified in the 1002rp Server Maintenance and Diagnostics
guide (NN44200-300). The system board beeps are usually not
associated with information displayed on screen.
• The RAID beeps emitted by the system at startup are associated
with messages indicating that the system is in a critical state.
The RAID beeps are high-pitched and long. Press Ctrl+M at
startup to open the MegaRAID BIOS Configuration utility and
check for a faulty or disconnected drive.
The system also emits RAID beeps when a RAID splitting
procedure is performed. However, these beeps do not indicate
a fault condition.
• A continuous high-pitched beep indicates a chassis condition
and is usually associated with a LED lit on the front of the
chassis (power supply, fan, or over temperature).
If the power supply is the cause of the beep, look at the back
of the server and identify the defective power supply (the LED
is red or off). The power supply can be plugged in incorrectly.
Unplug the power cord, check the pins, and plug the cord back
in. If the condition persists, replace the power supply.
If a fan is defective, replace it. You can hot-swap the fans.
The over temperature condition appears when both fans are
faulty.
• Sets of 1 through 11 intermittent beeps indicate faults associated
with the following hardware.
These are typical RAID beeps. If the system does not boot, one of
the following conditions can be present:
• One cable or both cables from the hard drives are disconnected
or improperly connected.
• One or both drives are faulty.
In special situations, the NVRAM contents and drive configuration
were lost. The data is still there, but the system beeps and shows
that both drives are faulty. Perform a data recovery by configuring
the drives as indicated in the 1002rp Server Maintenance and
Diagnostics guide, without initializing the logical drives. Open the
Nortel CallPilot
Troubleshooting Reference Guide
NN44200-700 01.05 Standard
5.0 26 June 2007