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PC Analyzer
User’s Guide
Improvement Note
As the 2 — bit code cards diagnose the mainboard by BIOS
(refer to the ” SYNOPSIS” in chapter 1), the code should not
been displayed in such following cases;
1. The card.is inserted on the mainboard without CPU, or
CPU is not running.
2. During the RST LED is lighting (the tested mainboard is reset-
ing);
In any cases above, the caed and LED doesn’ t light or light only 1
bit; rule out the “original code” . If the code is mot displayed beside
cases above, the card is not compatible with mainboard which is being
tested. You just need a more advanced post card Ike PI0050.
o
9.
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CONTENT
SYNOPSIS: HH Rn (1)
OBLIGATORY CONTEN (1)
Hexadecimal character table (2)
Desctipfion of LED displays ее: (2)
Flow chart a (3)
Error code tabie (4)
Description of beep cade (24)
(1)AMI BIOS beep codes (tatal error) (24)
(2) AMI BIOS beep codes (Non - fatal errof) - (24)
(3)Award BIOS beep codes mecs (24)
(4) Phoenix BIOS beep codes: += ec=e=cererrt= iia cera asen eine eaaeas (25)
(5)IBM BIOS beep codes (27)
. Corrective Action rooms, (27)
(1)If | forget the password, what can | do? - (27)
@ . Omnipotent password 77)
I. AMI password (27)
ll. Award passwod (28)
Ill. others (28)
@ . Discharge by software (28)
® . hardware jumper discharge to CMOS BIOS - (28)
(A). get helps from your dealer - (29)
(2)How to enter CMOS SETUP? (29)
If the code is not included in the book, what can | do? - (29)
10. Answers of frequently - asked questions : (30)
Introduce of run LEDS (31)
Distinguish true and faise (31)
1. SYNOPSIS
The card is named POST (Power On Self Test ) card too. It could
display the error code by the result of POST. then you would soon delermine
the error in error code table. Especially when the PC can’ t boot operating
system, or blank screen. or the card and motherboard couldn’ t issue an
audible beep. It is a powerful diagnostic tool. Now just use it. you" li get
twice the result with half the effort .
When the power is turned on. The BIOS would have a strict test with
system circuit memorizer keyboard video hard disc and floppy drive, then
analyze the system configuration. Initialize the basic I/O setup that already
configured. Next. Boot the operating system.
By the trait of the card, you can determine the error easily like this.
During the test of pivotal parts. If the error occurs. It will halt the work and
nothing appears on the screen. If the pivotal part is ok, you can have a test
of the parts that unimportant, this may not halt the work even if any error
occurs. And the system reports an error message at the same time. Now
when the computer goes wrong. Especially the fateful error. As there is
nothing appears on the screen, you can insert the card into the expansion
slot. Refer tothe error code table and the trouble is clear.
2. OBLIGATORY CONTENT
@ The error code table is in the order of the code value that from small
to big. The sequence that the code displays is decided by BIOS of the
motherboard. :
@ Code haven't be defined is not included in the table.
@ For the different BIOS (such as AMI, Award. Phoenix), a Code has
different meanings. So make sure that which kind Kind of BIOS you are
testing. Or view the user' s guide, or See it on the BIOS IC on the moth-
erboard.
@ There is only some code displayed when you insert the card into the
PCI slot on a few motherboards, but when it plugged into the ISA slot, all
the code could be displayed. At present, it has be discovered that the code
is displayed when you insert the card into the PCI slot of several computers
which has registered trade mark, but not ISA. So you' d better try it on the
other slot if the code is not displayed. In addition, on the different PCI slots
of aboard, some could display the code, for example, the code is displayed
and goes from “ 00" to " FF" when you insert the card into the PCI slot,
which is near to the CPU on motherboard DELL810, butifin the other slot,
the code would stopped at the port “38”
& The time thal reser message output needed Is not always in - phase,
so sometimes the code is displayed when the card in the ISA, but it is
stopped at the orgination code when in the PCI.
® As there are more and more kinds motherboard, and the code of
BIOS POST is updated ceaselessly, so the meanings of error codes is just
for reference.
1
@ According to experience: 2-bits code card is available in testing
mainboard below Pii300. but not avilable in maiboard above Pii300, soit’
s better to buy 4 - bits Pi0050 card, furthermore, we haven't received any ill
response from our buyer.
3. Hexadecimal character table
Decimalist | & |1 |@ |3 |4 |5 |6 12| [39| 11| 32| 23 4 |5
Нехадеста!| 9 13 |2 |8 14 15 |& 1218 |9 | А |3 | С 19 1Е Е
meros 12 A 29518] AA SRI IIE F
4. Description of LED displays
LED Type Description
Ifthe LED lights, the main board has worked,
RUN Bus pulse no matter ifthe code changes.
Lights when the power is applied to the empty
CLK Bus clock board (even without CPU ), or else there is
nomessage.
BIOS |Basic input/ |LED that turn on and off when the board is
outputread poweredon, as CPUis reading to BIOS.
IRDY Manageris LED that turn on and off when there is a mes-
ready sage.
= Lights when the board is powered on, or else
osc osciliation the crystal oscillation circuit is broken, and has
no OSC message.
FRAME | Frame periods Lights all the time. Turn on and off only when
there is a circular frame message.
Lights only for half - second when you slide the
power switch or the reset switch. If it is lit all
the time, check the following: make sure that
the reset pin is plugged properly, or the reset
circuit is boken.
RST Reset
Lights once the board is powered on, if itis not
12V Power lit, that means the short circuit occurs on
motherboard, or voltage can't up to 12V.
— 12V Power Thesameas “12V”
5V Power The same as“ 12V"
¡E The same as " 12V" (- 5V is output only in
3 Power | SA slot.) ‘ x
Dights once the board is powered on, only in
3V3 pa. PCI slot there will be 3V3 output. As some
| |motherboard's voltage can't up to 3V. It could
not light.
2
5. Flow chart
in expansion slot.
Power off: remove all the cards that plugged
6. Error code table
3
Phoenix4.0/
Code Award AMI Tandy3000
Code copying to specific
00 areas is done. Passin
control to INT 19h boo
loader next.
Insert the card into ISA or PCI slot. (Notice: the component
side should face to the power pin, if it plugged in the wrong
direction, although the card and motherboard is not broken. but
it could affect the proper functioning of motherboard.
|
Power on; make sure the LED runs
properly.
Whether the error
code is displayed
Refer to ” De-
»| scription of
LED displays”
Processor Test 1, Pro-
cessor staius
(1FLAGS) verification.
Test the following pro-
cessor status flags:
CPU is testing
the register
inside or
failed, please
change the
CPU and
table
E According to the error code
Power off, insert the display card. 1/0 card. keyboard. hard
disk drive and expansion card
Power on, whether the
error code is displayed.
Power off, according
| to the error code table
to check the error
01 | carry, zero, sign, over-
flow. check it.
The BIOS sets each
flag. verifies they are
set, then turns each flag
off and verifies it is off.
Test All CPU Registers Verify Real
02 | Except SS, SP, and BP Mode
with Data FF and 00
Disable NMI, PIE, AlE, | Disable NMI, PIE, AIE, | Disable
UEl, SOWV. UEI, SQThe NMI is dis- | Non - Mask-
Disable video, parity
checking, DMA.
Reset math coproces-
sor.
Clear all page registers,
CMOS shutdown byte.
03
Initialize timer 0, 1,
and2, including set
EISA timer to a known
state.
Initialize DMA controllers
0 and 1.
Initialize interrupt con-
trollers 0 and 1.
Initialize EISA extended
registers.
abled. Next, checking for
a soft reset or a power on
condition
able Interrupt
(NMI)
troller, or DMA circuit is at fault.
If it can’ t boot the operating system even though the result of the
test is correct, may be the software or disc drive, or disk con-
RAM must be perigdi-
cally refreshed to keep
the memory from de-
caying. This refresh
function is working
properly.
Get CPU type
Phoenix4 .0/
Cage Award AMI Tandy3000
Test Video Memory, The keyboard controller | Initialize 1/0
write sign - on message | BAT command result has | component
to screen. been verified. Next, per-
ОЕ forming any necessary
Setup shadow RAM ?
Initialization after the key-
Enable shadew accord- | boaed controller BAT
ing to setup. command test
Test DMA Cont. 0; | The initialization after the | Initialize the
BIOS Checksu
m Test
OF
Keyboard Detect and
Initialization.
keyboard controller BAT
command test is done.
The keyboard command
byte is written next.
local bus IDE
Test DMA The keyboard
controller command byte
is written. Next, issuing
Initialize Pow-
er Manage-
ment
10 | Test DMA Controiler1 | the Pin 23 and 24 Block-
ing and unblocking com-
mand
Next, checking if <End> | Load alternate
or <Ins> keys were | registers with
pressed during power on. | initial POST
; Initializing CMOS RAM if | values
11 | Jest DMA Page Regis- | the Initialize CMOS RAM
video in use.
Detect and Initialize
video adapter.
Phoenix4. 0/
Code Award AMI Tandy3000
The BIOS stack has been | DMA Initial-
Keyboard Controller Ini- | buitt. Next, disabling| ization in
05 | tialization cache memory. progress or
failure
Uncompressing the POST | Initializad sys-
06.1 Reserve code pe tem hardware
Next, initializing the CPU | Disable shad-
Verifies CMOS is Work- | andthe CPU data area ow and exe-
07 | ing Correctly, Detects aie a
Bad Batt om e
PAE ROM.
Early chip set initializa- | The CMOS checksum | Initialize
tion calculation is chipset _ with
initial POST
Memory presence test values
08 | OEM chip set routines
Clear low 64K memory
Tesk first 64K memory
Cyrix CPU Initialization Set IN POST
08 = = flag
Cache Initialization
Initialize first 120 inter- | The CMOS checksum | Initialize CPU
rupt vectors with SPU- | calculation is done. Lni- | registers
oa | RIOUS — INT — HDLR tializing the CMOS status
and initlalize INT OOh — | register for date and time
1Fh according to INT — | next.
TBL
The CMOS status rag ater Enable CPU
Test CMOS RAM |is Initialized. Next. Per- | cache
ов Checksum. If Bad, or | forming any requirect ini-
INS Key Pressed, Load | tialization before the key-
Defaults board BAT command is
issued
- | The keyboard controller | Initialize
<a с Type (of. Fey input butter is free Next, | caches to ini-
06 [2987000 tua the ap command tial POST val-
t t ayboar con- | ues
Set NUM LOCK Status | coller 2
Detect CPU Clock,
Read CMOS location
op | 14h to find out type of
ters in every boot AMIBIOS
POST option was set in
AMIBCP or the <End>
key was pressed,
Mext, disabling DMA con- | Restore CPU
12 | Reserved trollers 1 and 2 and inter- | control word
rupt controllers 1 and 2 during warm
boot
The video display has | Initialize PCI
been disabled. Port B has | Bus Mastering
13 | Reserved been initialized. Next, | devices
initializing the chipset
; The 8254 timer test will | Initialize key-
Test 8254 T :
14 men begin next. board con-
Counter?
troller
Verify 8259 Channel 1
15 Interrupts by Turning Off
and n e interrupt
Lines
Verify 8259 Channel 2 BIOS ROM
Interrupts by Turning Off checksum
and On the
Lines
Interrupt
Code
Award
AMI
Phoenix4, 0/
Tandy3000
Turn Off Interrupts Then
Verify No Interrupt Mask
Register is On
Initialize
cache before
memory Auto
size
Force an Interrupt and 8254 timer
18 | Verify the Interrupt Oc- initialization
curred
The 8254
ita- timer test is
Test Stuck NMI Bits; over. Starting
Verify NMI Can Be
Cieared
the memory
refresh test
next
The memory refresh line | 8237 DMA
i is toggling. Checking the | controller ini-
TA Display CRUCE 15 second on/off time | tialization
next
1B | reserved
Reset Pro-
grammable
1C | Reserved interrupt Con-
troller
1D | Reserved
1E | Reserved
If EISA non-volatile
memory checksum is
good, execute EISA ini-
tialization
If not, execute ISA tests
an clear.
1F
EISA mode flag
Test EISA configuration
memory
Integrity (checksum &
communication inter-
face).
20 Initialize Slot O (System Test DRAM
Board refresh
21 | Initialize Slot 1
—
Phoenix4, 0/
word if the POST DIAG
awitch is on.
Code Award AMI Tandy3000
Test 8742
22 | Initialize Slot 2 Keyboard Con-
Trolier
Reading the 8042 input port
and disabling the MEGAKEY
Green PC feature next.
TT Making the BIOS code seg-
23 | nitialize Slot 3 ment writable and performing
any necessary configuration
before initializing the interrupt
vectors
The configuration required | Set ES seg-
before interrupt vector initial- | ment register to
24 | Initialize Slot 4 ization has completed. Inter- | 4 GB
rupt vector initialization is
about to begin
Interrupt vector initlalization
25 | Initialize Slot 5 is done. Clearing the pass-
1.test the excep-
tional situation of
protected mode,
check the memory
1.enable A20
adress line,
check the AZO
pins of memory
mode and color mode set-
tings next
of cpu and main- controlling
board. 1. read/write input. output| chips, and
2.no fateful trou- | port of 8042 keyboard; ready | check circuit,
ble, VGA displayed | forrevolve mode, continue to| correlated to
26 | normally. If non - | get ready for initialization of| pins. in memo-
fateful trouble oc- | all data, check the 8042| ry slot, may be
curred, then display | chips on mainboard. A20 pin and
error message in | 2.refere to the left. memory pins
VGA otherwise boot are not in con-
operating system, tact, or memory
and code” 26" is OK A20 pins bad.
code, no any other 2. refere to the
codes to display left
Any initialization before set-
27 | Initialize Slot 7 ting video mode will be done
next
Initialization before setting] Auto size
the video mode is complete. | DRAM
28 | Initialize Slot 8 Configuring the monochrome
Phoenix4. 0/
Code Award AMI
= Tandy3000
pena, Initialize POST
29 | Initialize Slot 9 Memory Man-
ager
Initializing the different bus | Clear 512 KB
2A | Initialize Slot 10 system, static, and output| base RAM
devices, if present
Passing control to the video
ae ROM to perform any required
25 | Initialize Siot 11 configuration befora the
video ROM test.
All necessary processing be- | RAM failure on
fore passing control to the | address line
2C | Initialize Slot 12 video ROM is done. Looking | хххх *
for the video ROM next and
passing control to it.
The video ROM has returned
control to BIOS POST Per-
2D | Initialize Slot 13 forming any required pro-
cessing after the video ROM
had control
Completed pest - video ROM | RAM failure on
test processing. If the EGA/ | data bits
2E | Initialize Slot 14 VGA controller is not found, | Xxxx *oflow
performing the display mere- | byte of memory
ory Read/write test next bus
The EGA/YGA controller
E was not found. The display
2F | Initialize Slot 15 memory reed/ write test is
about to begin
Size Base Memory | The display memory read/
From 256K to 640K write test passed. Look for
30 | and Extended | retrace checking next
Memory Above
iMB
Test Base Memory | The display memory read/
From 256K to 640K | write test or retrace checking
31 | and Extended | failed. Performing the alter-
Memory Above | nate display memory read/
1MB write test next_
If EISA Mode, Test | The alternate display memo- | Test CPU
42 EISA Memory | ry read/write test passed. | Bus —clock fre-
Found in Slots Ini- | Looking for alternate display | quency
tialization retrace checking next. =
Initialize
33 | Reserved Phoanrx Dis-
patch manager
al
Phoenix4. 0/
Ports and Game Port
tics mode next.
Code Award AMI Tandy3000
Video display checking is
34 | Reserved over. Setting the display
mode next.
35 | Reserved
Warm start and
36 | Reserved HS
The display mode is set.
37 | Reserved Displaying the power on
message next
Initializing the bus input, IPL, | Sha gow 1
38 | Reserved general devices next, if pre-| BIO
sent
Displaying bus initialization
39 | Reserved error messages.
The new Ta position Le Auto size cache
been read and saved. is-
3A Reserved playing the Hit <DEL> mes-
sage next
The i message Ls
displayed. e protected)
ЗВ | Reserved mode memory test is about to
start.
Advanced con-
ЗС |Setup Enabled figuration of
chipset registers
Detect if Mouse is Load alternate
зо Present, Initialize registers with
Mouse, Install Inter- CMOS values
rupt Vectors
ЗЕ | Initialize Cache Con-
troller
3F |Reserved
40 Display Virus Protest| Preparing the descriptor tables
Disable or Enable next
Initialize Floppy Disk Initialize extend-
41 |Drive Controller and ed memory for
Any Drives RomPilot
ra . | The descriptor tables are pre- | Initialize interrupt
42 inflisfize akc, E pared. nteling protected|vectors
Drives YI mode for the memory test
next
Detect and Initialize| Entered protected mode. En-
43 |Serial & Parallel] abling interrupts for diagnos-
10
Code
Award
AMI
Phoenix4.0/
Tandy3000
4E
Reboot if Manufac-
turing Mode; If not,
Display Messages
and Enter Setup
The memory tes! started, but
not as the result of a soft
reset. Displaying the first 64
B memory size next.
Display BIOS
copyright notice
4F
Ask Password Se-
curity (Optonal)
The memory size display has
started. The display is up-
dated during the memory
test. Performing the se-
quential and random memory
test next
Initialize Multi-
Boo
50
Write All CMOS
Values Back to
RAM and Clear
The memory below 1 MB has
been tested and initialized.
Adjusting the displayed
memory size fot relocation
and shadowing next
Display CPU
type and speed
51
Enable Parity
Checker. Enable
NMI, Enable Cache
Before Boot
The memory size display
was adjusted for relocation
and shadowing. Testing the
memory above 1 MB next.
Initialize EISA
board
52
Initialize Option
ROMs from C8000h
to EFFFFh or if FS-
CAN Enabled to
F7FFFh
The memory above 1 MB
has been tested and initial-
ized. Saving the memory
size information next.
Test keyboard
53
Initialize Time Value
in 40h: BIOS Area
The memory size information
and the CPU registers are
saved. Entering real mode
next.
54
Shutdown was successful.
The CPU is in real mode.
Disabling the Gate AZ20 line,
parity, and the NMI next
Set key click if
enabled
Phoenix4.0/
Code; Award AMI Tandy3000
mur enabled if he oa
- nostics switch is on. Initiallz-
44 | Reserved ing data to check memory
wraparound at 0:0 next.
Data initialized. Checking for | POST device
45 Detect and Initialize memory wraparound at 0: initialization
Math Coprocessor and finding the total system
memory size next
The memory wraparound test | Check ROM
is done. Memory size calcu- | copyright notice
$5 )Rusurved lation has been done. Writing
patterns to test memory next
The memory pattern has | Initialize 120
been written to extended | support
47 | Reserved memory. Writing patterns to
the base 640 KB memory
next.
Patterns written In base | Check video
memory. Determining the | configuration a-
48 | Reserved amount of memory below 4 | gainst CMOS
MB next.
The amount of memory below | initialize PCI
1 MB has been found and | bus and de-
49 | Reserved verified. Determining the | vices
amount of memory above 1
MB memory next.
Initialize all
4A | Reserved video adapters
in system
The amount of memory | QuietBoot start
above 1 MB has been found | (optional)
and verified. Shocking for a
soft reset and clearing the
4B| Reserved memory below 1 MB for the
soft reset next. If this is a
power on situation, going to
checkpoint 4Eh next.
The memory below 1 MB has a A lada
been cleared via a soft reset.
4C| Reserved Clearing the memory above 1
MB next.
The memory above 1 MB
has been cleared via a soft
4D | Reserved reset. Saving the memory
size next. Going to check-
point 52h next
56
Enable USE
devices
57
The A20 address line, pari-
ty. and the NMI are dis-
abled. Adjusling the memory
size depending on relocation
and shadowing next.
58
11
The memory size was ad-
justed for relocation and
shadowing. Clearing the Hit
<DEL> message next
Test for unex-
pected Inter-
rupts
12
Code
Award
AMI
Phoenix4. 0/
60
functionality according to
setup setting.
the DMA Controller 1
base register test next.
Tandy3000
The Hit <DEL> mes- | Initialize
sage is cleared. The | POST display
59 WAIT... > message | service
is displayed. Starting the
DMA and interrupt con-
troller test next,
Display
prompt
5A Press F2 to
enter SET-
Disable CPU
58 cache
Test RAM be-
5C tween 512
and 640 kB
Setup virus protection | The DMA page register | Test extended
(boot sector protection) | test passed. Performing | memory
61
Try to turn on level 2
cache (if L2 cache al-
ready turned on in post
3D, this part will be
skipped)
Sat the boot up speed
according to setup set-
ting
Last chanc
initialization
for chipset
Last chance for power
management initializa-
tion (Green BIOS Only)
Show the system con-
figuration table
62
Setup NUM Lock Status
According to Setup val-
ues
Progra»nr Lhe NUM luck.
typematic rate & type-
matic speed according
fo setup setting
The DMA controller 1
base register test passed.
Performing the
DMA con-
troller 2 base register test
Test extended
memory ad-
dress lines
13
Phoenix4.0/
Code Award AMI Tandy3000
if there is any changes
in the hardware config-
uration. update the ES-
CD information (PnP
63 BIOS only)
Clear memory that have
been used
Boot system via INT
19h
Jump to
64 UserPatchi
The DMA controller 2
65 base register test passed
Programming DMA con-
trollers 1 and 2 next
Completed programming | Configure ad-
66 DMA controllers 1 and 2 | vanced cache
Initializing the 8259 inter- | registers
rupt controller next.
Completed 8259 interrupt | Initialize Multi |
67 controller initialization Processor
APIC
Enable exter-
68 па! and CPU
caches
Setup System
69 Management
Mode (SMM)
area
Display exter-
GA nal L2 cache
size
Load custom
6B defaults
(optional)
Display shad-
6C ow — area
message
Display possi-
dress for UMB
racovary
6F
Phoenix4.0/
Code] Award AMI Tandy3000
70 Display error message
71
Check for configuration
72 errors
8 Check for keyboard er-
2 rors
Set up hardware Inter-
7C rupt vectors
| Initialize Intelligent Sys-
no tem Monitoring
Initialize coprocessor If]
7E present
7F Extended NMI source enablingi
is in progress.
The keyboard test has started. | Disable onboard Super
Clearing the output buffer and|l/O ports and IRQs
80 checking for stuck keys. Issuing
the keyboard reset command
next
A keyboard reset error or stuck|Late POST device Inl-
81 key was found. Issuing the|tialization
keyboard controller interface test
command ne
The keyboard controller inter-|Detect and install ex-
82 face test completed. Wirting the| ternal RS232 ports
command byte and Initializing]
the circular buffer next.
The command byte was written| Configure non —- MCD
83 and global data initialization has| IDE controllers
completed. Checking for a
locked key next
Locked key checking Is over. |Detect and install ex-
84 Checking for a memory size|ternal parallel ports
mismatch with CMOS RAM data
next
The memory size check Is|Initialize PC -compati-
done. Displaying a soft error|ble PnP ISA devices
85 and checking for a password or
bypassing WINBIOS Setup
next.
The paceword wae chocked. | Ra — Initialize onboard]
86 Performing any required ‘рго-|1/ О ports.
gramming before WINBIOS
etup next
15
A des =
Phoenix4. 0/
Code] Award AMI Tandy3000
The programming before WIN- | Configure Motherboard
BIOS Setup has completed | Configurable Devices
87 Uncompressing the WINBIOS | (optional)
Setup code and executing the
AMIBIOS Setup or WINBfOS
Setup utility next
Returned from WINBIOS Setup | Initialize BIOS Data
end cleared the screen. Per- | Area
88 forming any necessary po
gramming after WINBIOS Set-
up next
The programming after WIN-| Enable Non —Mask-
89 BIOS Setup has completed. | able Interrupts (NMis)
Displaying the power on screen
message next
Initialize Extended
8A BIOS Data Area
The first screen message has | Test and Initialize PS/
been displayed. The | 2 mouse
<WAIT. ..> message is
8B displayed. Performing the PS/
2 mouse check and extended
BIOS data area allocation
check next
ac Programming the WINBIOS | Initialize floppy con-
Setup options next troller
The WINBIOS Setup options
8D are programmed. Resetting
the hard disk controller next
The hard disk controller has
8E been reset. Configuring the
floppy drive controller next
Determine number of
8F ATA drives (optional)
Initialize hard - disk
90 controllers
The floppy drive controller has | Initialize — local — bus
been configured. Configuring | hard — disk controllers
ai the hard disk drive controller
next.
92 Jump to UserPatch2
Build MPTABLE for
93 multi— processor
boards
16
Code
Award
AMI
Phoenix4. 0/
Tandy3000
A1
Check key lock
A2
Displaying any solt error next
A3
The soft error display has
completed. Setting the key-
board typematic rate next.
Ad
The keyboard typematic rate is
set. Programming the memory
wait states next
Intialize typematic rate
AS
Memory wait state program-
ming is over. Clearing ihe
screen and enabling parity and
the NMI next
A7
NMI and parity enabled. Per-
forming any initialization re
quired before passing control to
the adaptor ROM at E000
next.
Initialization before passing
control to the adaptor ROM at
E000h completed. Passing
control to the adaptor ROM at
EO00h next
Erase F2 prompl
A9
Returned from adaptor ROM at
EO00h control. Performing any
initialization required after the
E000 option ROM had control
next
ñA
Initialization after E000 oplion
ROM control has completed.
Displaying the system configu-
rátion next
Scan for F2 key stroke
Uncompressing the DMI data
and executing DMI POST ini-
tialization next
AC
Enter SETUP
AE
Clear boot flag
BO
Code Award Phoenix4. 0-
AMI Tandy3000
95 Initalizing bus adaptor ROMs | hinstali CD ROM for
from C8000h through D8000 boot
Initializing before passing con- | Clear huge ES seg-
96 trol to the adaptor ROM at| ment register
C800
inihalization befora the C800 | Fix up Mult Processor
97 adaptor ROM gains control has | table
completed. The adaptor ROM
check is next.
The adaptor ROM had control | Search for option
and has now returned control | ROMs. Ona long, two
98 to BIOS POST. Performing | short beeps on check-
any required processing after | sum failure
the option ROM returned con
trolA
Any initialization required after | Check tor SMART
the option ROM test has com- | Drive (optional)
99 pleted. Configuring the timer
data area and printer base ad-
dress next.
Set the timer and printer base | Shadow option ROMs
9A addresses. Setting the RS -
232 base address next.
Returned after setting the
HS - 232 base address. Per-
9B forming any required initializa-
tion before the Coprocessor
test next.
Required initialization before | Set up Power Man-
ac the Coprocessor lest is over. | agement
initializing the Coprocessor
next
Coprocessor initialized. Per- | Intialize security en
9D forming any required initializa- | gine (optional)
tion alter the Coprocessor test
next.
initialization after the Copro- | Enable hardware inter-
cessor lest is complete. | rupts
9E Checking the extended key-
board, keyboard ID, and Num
Lock key next. Issuing the
keyboard ID command next
OF Determme number of
ATA and SCSI drives
AD Set time of day
If inter-
rupts Oec-
curs in
Protected
Mode
The system configuration is
displayed.
Check for errors
ode
Award
AMI
Phoenix4. 0/
Tandy3000
B1
It Unmasked NMI Oc-
curs, Display Press
F1 to Disable NMI, F2
Reboot
Copying any code
specific areas,
to
Inform RomPilot
about the end of
POST.
Award
AMI
Phoenix4. 0/
Tandy3000
POST done —
Tum off OEM specific
cache, shadow
Initialize standard de-
vices with default val
ues: DMA controller
Try to boot with
INT 19
B2 prepare to boot
operating system
B3
B4 1 One short beep
before boot
Bs Terminate Quiet-
Boot {optional
Check password
He (optional!)
Initialize АСР!
Sr BIOS
Ba
B9 Prepare Boot
BA Initialize SMBIOS
BE Initialize PnP Op-
tion ROMs
Clear parity
= checkers
BD Display MultiBoot
menu
BE
Program chipset reg-
isters with power an
BIOS defaults
Clear screen
(optional)
BF
Program the rest of
the chipset’ s value
according to setup
(later setup value
program)
If auto configuration ¡s
enabled, programmed
the chipset with pre-
defined valiies in tha
MODBINable Auto
Table
Check virus and
backup reminders
CO | (8237); Pro-
grammable Interrupt
Controller © (8259):
Programmable interval
Timer (8254); ATC
chip.
OEM Specific — Test to Initialize POST
C1 | Size On — Board Error Manager
Memory (PEM)
Initialize error
oe logging
Test the first 258K Initialize error
DRAM display function
Expand the com-
C3 | pressed codes into
temporary DRAM area
including the com-
pressed system BIOS
& Option ROMs.
Initialize system
C4 error handier
OEM Specific - Early PnPnd dual
C5 | Shadow Enable for CMOS (optional)
Fast Boot
cs | Extemal Cache Size Initialize note
Detection dock (optional)
Initialize note
c7 dock late
Force check
ce (optional)
sum (optional)
Redirect Int 15h
CA to enable remote
keyboard
20
Phoenix4. 0/
Code Award AMI Tandy3000
Redirect Int 13h
to Memory Tech
CB nologies Devices
such as ROM,
RAM, PCMCIA,
and serial disk
Redirect Int 10h
cc to enable remote
serial video
Re - map 1/0
CD and memory for
PCMCIA
Initialize digitizer
CE and display mes-
sage
The NMI is disabled.
Power on delay is start-
DO ing. Next, the initializa-
tion code checksum will
be verified.
Initializing the DMA
controller, performing
the keyboard controller
D1 BAT test. starting
memory refresh, and
entering 4 GB flat mode
next.
Unknown — inter
Dz rupt
D3 Starting memory sizing
next
Returning to real mode.
DA Executing any OEM
patches and setting the
stack next.
Passing control to the
uncompressed code in
shadow НАМ а! Е000:
D5 0000h. The initialization
code is copied to seg
ment O and control will
he transferred to seg-
ment O
21
Phoenix4. 07
Code Award AMI Tandy3000
Control is in segment 0
Next, checking if
<Ctrl> <Home>
was pressed and verify-
ing the system BIOS
checksum. If either
D6 «Ciri> «<Home>
was pressed or the sys-
tem BIOS checksum is
bad, next will go lo
checkpoint code EOh.
Otherwise, going 10
checkpoint code D7h.
The onboard floppy | Initialize the
controller if available is | chipset
ЕО initialized. Next, begin
ning the base 512 KB
memory test
Initializing the interrupt | Initialize the
E1 | El Setup - Page El | vector table next bridge
tnitializing the DMA and | Initialize the CPU
E2 | E2 Setup - Page E2 | Interrupt controllers
next.
initialize system
EJ | ES Setup - Page E3 timer y
Initialize system
E4 | E4 Setup - Page E4 1/0 y
Check force re-
ES | E5 Setup - Page ES covery boot
Enabling the floppy drive носа BIOS
controller and Timer
E6 | E6 Setup - Page ES | pas Enabling internal
cache memory.
E7 | E7 Setup - Page E7 Go to BIOS
Set Huge S
ЕВ | ES Setup - Раде ЕВ ment 9 eg
Initialize Multi
ES | E9 Setup - Page ES Processor
Initialize OEM
EA | EA Setup — Page EA special code
Initialize PIC and
EB | EB Setup - Page EB DMA:
22
Phoenix4. 0/
7. Description of beep code
(1)AMI BIOS beep codes (fatal error)
DRAM Refresh Failure. Try reseating the memory first. If
1 beep the error stil occurs, replace the memory wilh known
good chips.
Parity Error in First 64K RAM. Try resealing the memory
be first. If the error still occurs, replace the memory with
= вере known good chips.
Base 64K RAM Failure. Try reseating the memory first. i
3 beeps the error stil occurs, replace the memory with known
good chips.
4 beeps System timer failure
5 beeps Process failure
Keyboard Controller 8042 - Gate A20 Error. try reseat-
ing the keyboard controller chip. If the error still occurs,
replace the keyboard chip. If the error persists, check
ml parts of the system relating to the keyboard, e.g. try
another keyboard, check to see if the system has a key-
board luse
7 beeps Processor, Virtual Mode Exception Interrupt Error
Display Memory Read/ Write Test Failure (Non — fatal) .
ae Replace the video card or the memory on the video card.
ROM BIOS Checksum (32KB at F800: 0) Failed. It is not
likely that this error can be corrected by reseating the
ses chips. . Consult the motherboard supplier or an AMI prod-
uct distributor for replacement part(s).
10 beeps CMOS Shutdown Register Read/Write Error
11 beeps Cache memory error
(2) AMI BIOS beep codes (Non — fatal errof)
i - hardware tests has
2 short POST Failure One or more of the dw
failed
1 long 2 short
An error was encountered in the video BIOS ROM, or a
horizontal retrace failure has been encountered
1 long 3 short
Conventional / Extended memory failure
1 long B short
Display / Retrace test failed
(3) Award BIOS beep codes
1 short
No error during POST
2 short
Any Non - fatal error, enter CMOS SETUP to reset
Code Award AMI
Tandy3000
EC | EC Setup - Page EC Initialize Memory
type
ED | ED Setup - Раде ED Initializing the floppy Initialize Memory
drive. size
Lookng for a floppy | Shadow Boot
EE | EE Setu cr 5 ette in drive A: Block
Р age EE | Reading the first sector
of the diskette
A read error occurred | System memo
EF | EF Setup — Page EF | while reading the floppy test 2
drive in drive A:
Next, searching for the | Initialize interrupt
FO AMIBOOT. ROM file in | vectors
the root directory.
The AMIBOOT. ROM file | initialize Run
F1 is not in the root direc- | Time Clock
tory
Next, reading and ana- | Initialize video
lyzing the floppy diskette
F2 FAT to find the clusters
occupied by the AMI-
BOOT. ROM file
Next, reading the AMI- | initialize System
F3 BOOT. ROM file. cluster | Management
by cluster. Manager
Fa The AMIBOOT. ROM file | Output one beep
is not the correct size
ES Next, disabling internal | Ciear Huge Seg-
cache memory. ment
F6 Boot to Mini DOS
F7 Boot to Full DOS
FB Next, detecting the type
of flash ROM.
FC Next, erasing the flash
ROM.
FD Next, programming the
flash ROM
Flash ROM program-
FF | int 19 Boot Att ming was successful.
sen Next, restarting the
system BIOS.
23
1 long 1 short
HAM or motherboard error
24
1 long 2 short
Video Error, Cannot Initialize Screen to Display Any in-
formation
1long 3 short
Keyboard Controller error
1 long 9 short
Flash RAM /EPROM (which on the motherboard
(BIOS error) E
Long beep
Memory bankis not plugged well, or broken.
Code
Phoenix codes
/ What to Check
Heal Mode
Get CPU
Initialize values,
in
Initialize CPU
Initialize cache to mitial values,
МО.
Power
Load alternate with
Patch
Initialize
BIOS ROM checksum.
timer
B237 DMA
T
Test 87
ES
Load alternate with CMOS values
25
for
video
Initialize bus and
video in
video ROM.
Press enter
51 640k.
address lines.
to =
advanced cache
external
extemal size.
non -
error
errors.
errors
vectors.
ot
3-2-1-1 Initialize hard — disk controlier.
3-2-1-2 Initialize local — bus hard — disk controller,
3-2-1-3 Jump to UserPatch2.
а -2 - 2-1 Disable A20 address line.
I-2-2-3 Clear huge ES segment register.
3-2-3-1 Search for option ROMs.
{5}IBM BIOS beep codes
Beep Code Description
No Beeps Mo Power, Loose Card. or Short.
1 Shon Beep Normal POST, computer is ok.
2 Short Beep e review screen for er-
Continuous Beep No Power, Loose Card, or Short.
Repeating Short Beep No Power, Loose Card, or Short.
One Long and one Short Beep Motherboard issue.
One Long and Two short Beeps et) tano CGA Display Cir-
One Long and Three Short Beeps. Video (EGA) Display Circuitry.
Three Long Beeps Keyboard / Keyboard card error.
One Beep, Blank or Incorrect Display | Video Display Circuitry.
8. Corrective Action
(1). 151 forget the password, what can | do?
If you forget your password, don't worry! The following will help you.
{1) . Omnipotent password
For the BIOS from different manufacturer, their password is different
too. Both omnipotent password and password users set are able to unlock
the computer. Try the abbreviation of manufacturer or the character string
which formed by the first letter of each word. May be it is the omnipotent
password, far example:
|. AMI password
AMI AMI Bios310 AMI! Sw KILLCMOS
A. M. | 589588 SMOSPWD AMISETUP | ami. kez
BIOS ammii AMI Sw ami? AMI. KEY
AMI Sw amipswd amidecod amiami
PASSWORD | LKWPETER | BIOSPASS AMIPSWD
27
Ii. Award passwod
PASSWORD HLT biostar Taward djonet
AWARD SW ALFAROME jOSF 1EAAh g6PJ
AWARD?SW 256256 j256 | admin HELGA -S
AWARE PW 589721 LKWPETER | ally HLT
IN. others
Phoenix BIOS:
Q54arwms Micron:
dn
123 Bell: bell9
Shuttle:
HP Vectra:
MBIUO sertafu TMC: BIGO
. Discharge by software
CMOS ROM can be discharged by software way. Then help you to
solve the password problem. Follow these method, use the prompt © DE-
BUG", all things to be easy.
I. clear Award password
C: >> DEBUG
- 07034, or = о 70 115"
= 0 71 34, - 071 Hy
— Qu” — qe
И. clear AMI BIOS password
С:  >> DEBUG
—-— 070 16x Or — © 70 10,”
- о 71 16,” - о 71 0,”
- qu’ - q
Note: the setup of CMOS BIOS will be erased during the discharge, so
the computer is able to running until you reset it. If it is COMPAQ computer,
you" d better get a floppy disk which store CMOS program first, then do the
discharge, or else it is easy to discharge but hard to recover.
@ . hardware jumper discharge to CMOS BIOS
All the computers could discharge to CMOS BIOS by switch or jumper,
and clear any prompt (system booting prompt, CMOS setup prompt, key
lock prompt) . There are examples for the particularity of CMOS of some
Original packaging computer:
The discharge of COMPAQ and AST is finished by close/open the
switch, but except the state power off, follow these steps:
a. when the external power is turned off, push SW1 and SW1 -2 to
28
on.
b. external power is turned on, restart the computer.
c. after 1to 5 minutes. turn off the computer
d. push SW1 and SW1-2to "off"
e. turn on the computer. enter CMOS setup to reset if.
Most of motherboard discharge to CMOS by jumper, and for the differ-
ent board, the pin is different. During the discharge, read the user's guide
of motherboard first, if the state of CMOS discharge jumper pin is not in-
cluded in it, to check that whether there are sighs on the motherboard. such
5 " Exit Batter",
“ Clean CMOS", "CMOS ROM Reset”. If you find these
sign, connect the pin of switch, orelse, remove the battery.
@ . get helps from youur deäler
If the problem is not solved still, please get in touch with you dealer.
BIOS
Award
MR
COMPAQ
AST
(2)How to enter CMOS SETUP?
instruction
or
<Del> or <Ctrl> + <Alt> + <ESC>
<Del> or <Ctrl> + <All> + NONE
<F2>
Cursor NONE
<Del> + <Alt> + <5>
+ - NONE
<F2> NONE
9. Ifthe code is not included in the book, what can I do?
As the mainboard manufacturer defines the code. Some codes haven’
t been defined, so you can get in touch with you dealer and find them. Also
if you have the new code meaning, you can write them down in the following
CODE
BIOS
Descriptio
REA Award | AMI
10. Answers of frequently - asked questions
NOTE:
1. Don'tagainst the rulesin motherboard quality guaranty
duringrepairtheboard.
2. Troubleshooting only when the power off.
Error description solutions
Memory bankis bad Replace it and try again
Pin of memory bank is dirty “lean I with student eraser
Memory
Bank Bank ee е отег | Insert the right memory bank.
The slot is dirty or something | Clean it
Memory Natali ring stice in the slot tio
slot or | out A or ruptured. Refit it s shape or replace it
extended Wash with the pure alcoho.
slot Metallic spring stice in the slot | Inserts it and pull it out fre-
is rusty or mouldy quently after itis dry.
Replace it. (Touch it to check
CPU is bad if it does not generate heat or
overheated)
e jumper setup or CMOS | Check the setup of workin
CPU RE of CPU is error. voltage and frequency of CP
CPU pin is dirty
Clear the dirty things, insert
and pull out it irequently.
CPU is not plugged well.
Check the CPU pin
Error of
POST
The pin is dirty
Clean it with student eraser.
Insert the card and pull it out
many times.
The Fast card is plugged in
wrongs
Distinguish carefully belween
SA slot and PCI slot
POST card insert
card or it
Make sure the component
phage i ie plugged in the wrong di- | Side should face to the power
in
: Geli in touch form you dealer.
The POST cardis bad (P678 @ 163.net)
The motherboard is not run- | Check the power and CPU |
Power. fining jumper.
code is pere is no code export 10 | Try the other slot. (See "
stopped the bus slot in which the Obligatory content")
POST
tails mid-
way
Motherboard error
According to error codes
The motherboard send the
error code to ideo display
Connect the video display.
According to the message on
the screen to check the error,
then try again.
30
Introduce of run LEDS
Only by some units and a few mainboard slot message, it could runs
normally, and it has a low error percentum. If the card is plugged into the bad
slot, the code stop changing, or the other LEDs is not light, but the run LED is
quite possible to run normally. You can solve the following problems by the
result of “if the run LED has lighted, the mainboard has ever ran":
1.
2.
so
mn
The code of the card is bad.
The card is not fit for the mainboard which you using.
PCI slot or ISA slot is bad.
- The card is plugged incorrectly or pins of card are dirty, or pins in slot
rusted.
. The mainboard stops working.
. The mainboard is working on programs which is out of relation to
codes.
31