NEC VERSA LX Manual page 153

If beep codes occur during POST, check the items in the Problem
Checklist (at the start of this chapter), verify that all the hardware is set
up properly and securely connected, and try rebooting. If you still get a
beep code, go to the section "If You Need Assistance" at the end of this
chapter.
Beep Codes are listed in the table that follows.
Number of
Beeps
1
2
3
4
5
6
7
8
9
10
11
Beep Codes
Error
Refresh Failure
Parity Error
Base 64 KB Memory Failure
Timer Not Operational
Processor Failure
Gate A20 Failure
Processor Exception
Interrupt Error
Display Memory Read/Write
Error
ROM Checksum Error
CMOS Shutdown Register
Read/Write Error
Cache Error/External Cache
Bad
Description
The memory refresh circuitry
on the motherboard is faulty.
Parity error in the first 64 KB of
memory.
Memory failure in the first 64
KB.
Memory failure in the first 64
KB of memory or Timer 1 on
the motherboard is not
functioning.
The CPU on the motherboard
generated an error.
The keyboard controller may
be bad. The BIOS cannot
switch to protected mode.
The CPU generated an
exception interrupt.
The system video adapter is
either missing or its memory is
faulty. (This is not a fatal
error.)
The ROM checksum value
does not match the value
encoded in the BIOS.
The shutdown register for
CMOS RAM failed.
The external cache is faulty.
Solving System Problems 7-7