Nortel CallPilot 1002rp Installation And Configuration Manual page 26

Troubleshooting your CallPilot system
Beep
count
5
6
7
8
9
10
11
26
Error message
Processor Error
8042 - Gate A20
Failure
Processor
Exception
Interrupt Error
Display Memory
Read/Write Error
ROM Checksum
Error
CMOS Shutdown
Register Read/
Write Error
Cache Memory
Bad: Do Note
Enable Cache
Description
The Central Processing Unit (CPU) on the
processor board failed to function
properly.
The keyboard controller (8042) contains
the Gate A20 switch which allows the
CPU to operate in protected mode. This
error message means that the BIOS is not
able to switch the CPU into protected
mode.
The CPU on the processor board generated
an exception interrupt.
The system video adapter is either missing
or its memory is faulty.
Note: This is not a fatal error.
The ROM checksum value does not match
the value encoded in the BIOS.
The shutdown register for the CMOS
RAM failed.
The cache memory test failed. Cache
memory is disabled.
Note: Do not press <Ctrl><Alt>Shift><+>
to enable cache memory.
Standard 1.0
CallPilot