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Solving System Problems 10-7
Beep Codes
Number of
Beeps Error Description
5 Processor Failure The CPU on the motherboard
generated an error.
6 Gate A20 Failure The keyboard controller may be bad.
The BIOS cannot switch to protected
mode.
7 Processor Exception
Interrupt Error
The CPU generated an exception
interrupt.
8 Display Memory
Read/Write Error
The system video adapter is either
missing or its memory is faulty. (This
is not a fatal error.)
9 ROM Checksum Error The ROM checksum value does not
match the value encoded in the BIOS.
10 CMOS Shutdown
Register Read/Write
Error
The shutdown register for CMOS
RAM failed.
11 Cache Error/External
Cache Bad
The external cache is faulty.
If You Need Assistance
If you have a problem with your computer, first review the checklist and
troubleshooting table at the beginning of this chapter.
If you still have a problem, see Chapter 11, “Getting Service and Support,” for details
about contacting NEC Computers.
Note
If you purchased and are using this product outside the U.S. or Canada,
please contact the local NEC Computers office or their dealers for the support and
service available in your country.