origina date 09/29/87
TITLE: ROM BEEP CODES AND ERROR MESSAGES
CONTENTS:
-
FATAL SYSTEM BOARD BEEP CODES
NON-FATAL SYSTEM BOARD BEEP CODES
POST AND BOOT ERROR MESSAGES
INFORMATIONAL MESSAGES
RUN-TIME ERROR MESSAGES
*************************************************************************
***
- FATAL SYSTEM BOARD BEEP CODES
The table below describes the beep codes and error codes that are
written to Port 80h for fatal system board errors. These errors
will cause the system to halt.
Note:
No beep code is sounded if a test is aborted while in progress.
The contents of port 80h can be read to identify the area of
failure.
*************************************************************************
****
FATAL
SYSTEM
BOARD
ERRORS
BEEP
CODE
none
1-1-3
1-1-4
1-2-1
CONTENTS
PORT 80h
01h
02h
03h
04h
1-2-2
1-2-3
1-3-1
none
05h
06h
08h
09h
DMA
DMA
RAM
1st
1-3-3
0Ah
1st 64K RAM chip or data line failure multi-
1-3-4
1-4-1
1-4-2
0Bh
0Ch
0Dh
1st 64K RAM odd/even logic failure
Address line failure 1st 64K RAM
Parity failure 1st 64K RAM
BEEP
CODE
2-1-1
2-1-2
2-1-3
2-1-4
CONTENTS
PORT 80h
10h
11h
12h
13h
DESCRIPTION
CPU register test in progress
CMOS write/read failure
ROM BIOS checksum failure
Programmable Interval Timer failure
initialization failure
page register write/read failuæE
refresh verification failure
64K RAM test in progress
bit
FATAL
SYSTEM
BOARD
ERRORS
2-2-1
2-2-2
2-2-3
2-2-4
14h
15h
16h
17h
Bit
Bit
Bit
Bit
0
1
2
3
DESCRIPTION
1st 64K RAM failure
1st 64K RAM failure
1st 64K RAM failure
1st 64K RAM failure
Bit
Bit
Bit
Bit
4
5
6
7
1st
1st
1st
1st
64K
64K
64K
64K
RAM
RAM
RAM
RAM
failure
failure
failure
failure
2-3-1
2-3-2
2-3-3
2-3-4
FATAL
SYSTEM
BOARD
ERRORS
FATAL
SYSTEM
BOARD
ERRORS
BEEP
CODE
2-4-1
2-4-2
2-4-3
2-4-4
18h
19h
1Ah
1Bh
CONTENTS
PORT 80h
1Ch
1Dh
1Eh
1Fh
3-1-1
3-1-2
3-1-3
20h
21h
22h
3-1-4
none
3-2-4
none
23h
25h
27h
28h
BEEP
CODE
none
3-3-4
3-4-1
Bit
Bit
Bit
Bit
8
9
A
B
1st
1st
1st
1st
64K
64K
64K
64K
RAM
RAM
RAM
RAM
failure
failure
failure
failure
Bit
Bit
Bit
Bit
C
D
E
F
DESCRIPTION
1st 64K RAM failure
1st 64K RAM failure
1st 64K RAM failure
1st 64K RAM failure
Slave DMA register failure
Master DMA register failure
Master interrupt mask
register failure
Slave interrupt mask register failure
Interrupt vector loading in progress
Keyboard controller test failure
CMOS power failure and checksum
calculation in progress
CONTENTS
PORT 80h
DESCRIPTION
29h
CMOS configuration validation in progress
2Bh
Screen memory test failure
2Ch
Screen initialization failure
3-4-2
none
none
2Dh
2Eh
30h
Screen retrace test faulure
Search for video ROM in progress
Screen believed operable
none
none
30h
31h
Screen believed running with video ROM
Monochrome monitor believed operable
none
none
32h
33h
Color monitor (40 column) believed operable
Color monitor (80 column) believed operable
*************************************************************************
****
- NON-FATAL SYSTEM BOARD BEEP CODES
The table below describes the beep codes and error codes that are written
to Port 80h for non-fatal system board errors.
*************************************************************************
****
NON-FATAL
BEEP
CODE
CONTENTS
PORT 80h
4-2-1
34h
DESCRIPTION
No time tick
SYSTEM
BOARD
ERRORS
NON-FATAL
SYSTEM
BOARD
ERRORS
4-2-2
4-2-3
35h
36h
Shutdown failure
Gate A20 failure
4-2-4
4-3-1
37h
38h
Unexpected interrupt in protected mode
Memory high address line failure at
010000h - 0A0000h
4-3-3
4-3-4
3Ah
3Bh
Timer chip counter 2 failed
Time-of-day clock stopped
4-4-1
4-4-2
4-4-3
3Ch
3Dh
3Eh
Serial port test failure
Parallel port test failure
Math coprocessor test failure
*************************************************************************
******
- POST AND BOOT ERROR MESSAGES
The table below lists the POST and boot error messages, and suggests
possible
causes and solutions for each message.
*************************************************************************
*******
*
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Diskette drive 0 seek
The A drive has either
Check the A
drive
to track 0 failed
failed or is missing
Diskette drive reset
diskette
failed
The diskette adapter has
Check the
failed
adapter
Diskette read failure
diskete
-- strike F1 to retry
boot
retry
The diskette is either not
Replace the
formatted or is defective
with a bootable
diskette and
boot
Display adapter failed;
switch to
using alternate
setting
- The color/monochrome
switch is set wrong
- Change the
the correct
- The primary video adapter
- Check the
primary
failed
video adapter
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Gate A20 failure
Protected mode cannot be
Most likely, the
enabled
problem is with
the
system board:
check
the system board
Hard disk conroller
controller
failure
The controller card has
Replace the
failed
card
Hard disk failure
that
Retry
boot.
doesn't
If
work
replace
hard disk
Hard disk read failure:
that
Strike F1 to retry boot
replace
The working diskette or the
Retry boot. If
hard disk is defective
doesn't
work,
the diskette
----------------------------------------------------------------------------POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Invalid configuration
- Memory size is configured Run the SETUP
utility
information-- Please
wrong
program
run SETUP program
- Display adapter is
configured wrong
- Wrong number of diskette
drives
Keyboard clockline
keyboard
Either the
keyboard or the
Make sure the
failure
Keyboard dataline
failure
Keyboard controller
keyboard
failure
the keyboard cable cable
connection is defective
is connected
properly
The keyboard controller
Check the
firmware has failed
controller
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Keyboard is locked:
The keyboard lock located
Please unlock
at the front of the
computer is activated
Keyboard stuck key
failure
A key(s) is jammed
Try pressing the
key(s) again
Memory address line
circuitry
failure at hex-value,
read hex-value
expecting hex-value
Circuitry associated with
Check the
Memory data line
the
failure at hex-value
read hex-value -- hexvalue
One of
the memory chips has failed
the memory chips or
associated circuitry has
failed
Try replacing
memory chips
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Memory high address
Circuitry associated with
Check the
circuitry
line failure at hexthe memory chips has failed
value -- hex-value
Memory odd/even logic
circuitry
failure at hex-value
read hex-value
expexting hex-value
Circuitry associated with
memory chips has failed
Check the
Memory parity failure
the
at hex-value--hexvalue
One of the memory chips has
Try replacing
failed
memory chips
Memory write/read
the
failure at hex-value
read hex-value
expecting hex-value
One of the memory chips has
Try replacing
failed
memory chips
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
No boot device
Either diskette drive A:,
Retry boot. If
that
available--strike F1
the hard disk, or the
doesn't work,
replace
to retry boot
diskette itself is
the floppy
diskette or
defective
the hard disk
No boot sector on hard
drive
disk--strike F1 to
retry boot
The C:drive is not
No timer tick
chip
The timer chip has failed
Format the C:
formatted
Check the timer
in the system
board
Not a boot diskette -diskette
strike F1 to retry boot
The diskette in drive A: is
Replace the
not formatted as a bootable
diskette
with a bootable
diskette and
retry
boot
Hex-value Optional ROM
peripheral
bad Checksum = hexvalue
The peripheral card
Replace the
contains a defective ROM
card
_________________________________________________________________________
__
POST & BOOT MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
Shutdown failure
keyboard
Time-of-day clock
utility
stopped
The Keyboard controller or
Check the
its associated logic has
failed
controller
The CMOS Time-of-day clock
Run the SETUP
chip has failed
Timer chip counter 2
timer chip
failed
Timer or interrupt
chip
controller bad
Interrupt
Check
the
system board
Either the timer chip or
Check the timer
the Interrupt Controller is
of the
defective
controller on
the
system board
Unexpected interrupt in
system
protected mode
particularly
The non-maskable interrupt
Check the
(NMI) port can't be
board,
disabled
the logic
associated
with the nonmaskable
interrupt
*************************************************************************
*******
- POST INFORMATIONAL MESSAGES
The table below lists the POST information messages and their meanings.
*************************************************************************
*******
____________________________________________________
INFORMATIONAL MESSAGE
MEANING
====================================================
Hex-value Base Memory,
Indicates the amount of
hex-value Expansion
memory that has tested
successfully
Decreasing available
memory
Immediately follows any
memory error message, and
informs you that the memory
chips are failing
Memory test terminated
by keystroke
Indicates that you have
pressed the Spacebar while
the memory tests were
running. This stops the
memory tests.
____________________________________________________
INFORMATIONAL MESSAGE
MEANING
====================================================
Phoenix 80286 ROM BIOS
This copyright message is
Version 3.0 Copyright
displayed on the initial
1985, 1986,1987
boot screen and indicates
Phoenix Tech All
that POST has started
Rights Reserved
Strike the F1 key to
continue
This message indicates that
an error was found during
POST. Pressing the F1 key
allows the system to
attempt to boot
*************************************************************************
**
- RUN-TIME ERROR MESSAGES
Run-time messages are displayed if an error occurs after the
boot procedure is complete. The table below gives possible
causes and solutions for the run-time messages.
*************************************************************************
***
_________________________________________________________________________
__
RUN-TIME MESSAGE
POSSIBLE CAUSE
SOLUTION
=========================================================================
==
I/O card parity
The peripheral card has
Type (S)hut off
NMI
interrupt at address.
failed
Type (S)hut off NMI.
Note: This will
(R)eboot, other keys to
temporatiry
allow you
continue
to continue. You
must
replace the
peripheral
card
Memory parity interrupt
NMI
at address. Type (S)hut
A memory chip(s) has failed
Type (S)hut off
off NMI. (R)eboot,
only
other keys to continue
allow you
Note: This
will
temporarily
to
continue.You
must
replace the
memory
chips(s).
Unexpected HW interrupt
hardware
at address. Type (S)hut
off NMI,(R)eboot,
other keys to continue
This could be any hardware
Unexpected SW interrupt
at address. Type (S)hut
then
off NMI, (R)eboot,
that
other keys to continue
check
There is an error(s) in the
software program.
Try turning the
machine off and
Note: This message will not
on again. If
be displayed if INTENHD is
doesn't work,
false
the program.
There is an error(s) in the
software program.
Try turning the
machine off and
Unexpected type 02
interrupt at address.
then
Type (S)hut off NMI,
that
(R)eboot, other keys to
check
continue
Check the
related problem.
Note: This message will not
be displayed if INTENHD is
false
on again. If
Note: This message will not
doesn't work,
be displayed
false.
the program
if INTENHD is
-----------------------------------------------------------------------------
