7-6 Solving Problems
Fatal errors that occur during POST are communicated through a series of
beeps. All beep code errors, except beep code 8, are fatal errors and do not
allow the system to continue to boot.
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.
Beep Codes
NUMBER
OF BEEPS
ERROR
DESCRIPTION
1
Refresh Failure
The memory refresh circuitry on
the motherboard is faulty.
2
Parity Error
Parity error in the first 64 KB of
memory.
3
Base 64 KB Memory Failure
Memory failure in the first 64 KB.
4
Timer Not Operational
Memory failure in the first 64 KB of
memory or Timer 1 on the
motherboard is not functioning.
5
Processor Error
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.
Summary of Contents for VERSA 6220 - SERVICE
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