Compaq Mega-Post User Manual

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User's Guide

Mega-Post PCI-Diagnostic Card

User's Guide

ansion slot. It is not necessary

INTRODUCTION

The Mega-Post PCI-Diagnostic Card is a powerful diagnostic tool for technicians and administrators to troubleshoot various problems of IBM compatible PCs. It is easy to install, yet extremely powerful to use. With Diagnostic Card in hand, you no longer have to go through tedious and time consuming process of

trying to figure out what is wrong with your PC hardware. The Mega-Post PCI-Diagnostic Card will tell you exactly what is wrong with your PC in just seconds. It saves you time and money.

Our new and improved design of the Mega-Post PCI-Diagnostic Card can work with almost all popular types of CPUs, Motherboards, and BIOSes..

Trademarks

The Mega-Post PCI-Diagnostic Card is a trademark of Handelsvertretung Ellerhorst with all rights reserved. IBM PC, PCjr, IBM PC XT, IBM AT, and PS/2 are trademarks of international Business Machines Co., Inc. Pentium is a trademark of Intel Corporation.

System Requirements

The Mega-Post PCI-Diagnostic Card itself only requires an empty PCI or ISA exp to install memory chips to perform analysis. "POST Codes" can be displayed through the hexadecimal display panel on the Diagnostic Card itself.

Tech Support

Tech Support 0049/(0)8766/9394-17

Mega-Post PCI-Diagnostic Card Indicators

'Indicators' are any light emitting diodes(LED) or hexadecimal display panel that may be mounted on an Diagnostic Card. This section discusses the following indicators that appear on the Mega-Post PCI-Diagnostic Card:

l Dual POST Code Display l PCI BUS SIGNALS LEDs

POST Code Display

The POST Code Display is made up of a dual, dot matrix hexadecimal read-out that displays Power On Self Test (POST) status codes.

User's Guide

CLK

Motherboard Clock Signal.

Power On Self-Test (POST) Codes

Most AT and 386 computers (and a few XT computers) output status codes during POST. The Diagnostic Card displays these codes during and after POST. Refer to Appendix A for a comprehensive listing of POST codes provided by BIOS manufacturers.

PCI Signal Definition:

Should be on when power is supplied to the

BIOS IRDY OSC FRAME

RST

12V

-12V

-5V

3V3

motherboard even without CPU. BIOS Read Signal. Flashes when CPU reads BIOS code. Device Ready. Flashes when an IRDY signal is detected. ISA Oscillation Indicator. Indicate ISA Oscillation Signal is available. PCI Bus Frame. Should be on under normal circumstances and flashes when a PCI Frame Signal is detected. Reset. After power on or reset, this indicator should be on for an half second and then turned off. Power Supply, 12-Volt Positive. Should be on all the time otherwise there is a short circuit. Power Supply, 12-Volt Negative. Should be on all the time otherwise there is a short circuit. Power Supply, 5-Volt Positive. Should be on all the time otherwise there is a short circuit. Power Supply, 5-Volt Negative. Should be on all the time otherwise there is a short circuit. Power Supply, 3.3-Volt. Some motherboards have 3.3V power supply to

PCI slots. This indicator should be on if the motherboard supplies 3.3V power.

Installing the Mega-Post PCI-Diagnostic Card

Installation Procedure

TO INSTALL A Diagnostic Card:

Install the Diagnostic Card in any available PCI or ISA expansion slot. Connect the second display by flat cable Connect the build-in speaker and motherboard with speaker cable Power on the machine.

User's Guide

When the machine is turned on, the hexadecimal display should show the various POST codes as

POST Codes

the system executes (unless it has a rare BIOS that does not display POST codes).

If the machine does not boot, system POST has detected a fatal fault and stopped. The number showing in the hexadecimal display on the Diagnostic Card is the number of the test in which POST failed. Refer to Appendix A for a listing of POST codes.

Troubleshooting During POST

After initial power up, Power-On Self-Test (POST) codes begin displaying on the Diagnostic Card's hexadecimal displays (for most machines).

NOTE: A few machines use the parallel port to display POST codes instead of the Diagnostic

Card.

THE POST PROCESS

The ROM built onto the motherboard of the computer rums its built-in POST (Power-On Self-Test) when you switch power on to the computer, press the reset button on the computer, or press Ctrl-Alt-Del (warm boot). POST performs a tightly interwoven initialization and testing process for each of these methods, but it typically does not test or initialize memory above 64K for warm boot. You can get an even better idea of the detailed process by studying the POST code listings in Appendix A.

0.Initialize EISA registers(EISA)BIOS only).Clear 8042 keyboard controller.

AMI

Error Code

Erro

r Code

keyboard; Keyboard controller initialization. Initialize Chips; Disable

NMI,PIE,AIE,UEI, SQ

set(loop 1

5).

AMI

Award

Phoenix

AMI AST

Award Chips&Tech

Dell Phoenix Phoenix

AMI AST

Award

Appendix A

(00)Going to give control to INT 19H boot loader. (01)Processor register test about to start, and NMI to be disabled,286 reg. test about

to start. (01)Processor test 1;Processor status(1FLAGS) verification; Tests the following processor status flags carry, zero, sign, overflow. The BIOS will set each of these flags, verify they are set then turn each flag off and verify it is off.

(01)[Beep]=none 80286 register test in -progress.

(02)NMI is disabled. Power on delay starting. Power on de- lay starting.286reg. (02)Test CPU register.

(02)Processor test 2;Read/write/verify all CPU registers except SS,SP and BP with data pattern FF&00.Determine status of manufacturing jumper.

(02)Test CPU register. (02)[Beep]=1-1-3 CMOS write/read test . (02)Verify real-mode operation(Beep)=1-1-1-3.CPU Flags test. (02)[Beep]=1-1-3 CMOS write/read test in-progress or failure.

(03)Power on delay complete. To check soft reset/power-on. Any initialization before keyboard BAT is in progress. ROM BIOS checksum(32K at F800:0) passed.

(03)Test 8042 keyboard controller reset. (03)Initialize Chips; Disable NMI,PIE,AIE,UEI,SQWV, disable video, parity

checking, DMA; Reset math Coprocessor; Clear all page registers, CMOS shutdown byte; Initialize timer 0,1 and 2 including set EISA timer to a known state; Initialize DMA controllers 0 and 1; Initialize interrupt controller 0 and 1;Initialize EISA extended registers. Calculate BIOS EPROM and sign-on message checksum; fail if not

Error Code-00 Error Code-01

Error Code - 02

Error Code - 03

Chips & Tech (03)ROM did not checksum. Phoenix&Dell

AMI

AST

Award

Chips & Tech (04)DMA Controller failed. Phoenix&Dell

AMI

AST Chips & Tech (05)System timer bad.

Award

Phoenix&Dell (05)[Beep]=1-2-2 DMA initialization in-progress or failure.

(03)Disable Non-Maskable Interrupt(NMI).[Beep]=1-1-4 BIOS ROM checksum in-progress or failure.

(04)Any initialization before keyboard BAT is complete. Reading keyboard SYS bit, to check soft reset/power-on. Reading keyboard SYS bit, to check soft reset/power On. Keyboard controller test with and without mouse passed. 8259 initialization OK. (04)Low level keyboard communication, keyboard ID verification.

(04)Test memory refresh toggle; RAM must be periodically refreshed in order to keep the memory from decaying. This function assures that the memory refresh function is working properly. Test CMOS RAM I/O port interface and verify battery power is available(bat. status=1).Reset 8042.

(04)Get the CPU type (Beep)=1-1-2-1.CPU register test. Programmable Interval Timer test failure.

(05)Soft reset/power-on determined. Going to enable ROM. i.e. disable shadow RAM/Cache if any. Going to enable ROM.i.e. disable shadow RAM/cache if any. Chipset initialization over, DMA and interrupt controller disabled. CMOS pending interrupt disabled.

(05)Read keyboard input port.

(05)Keyboard controller self-test enable keyboard interface. Blank video, Initialize

processor; Clear all page registers,CMOS shutdown byte; Initialize timer 0,1 and 2 including set EISA timer to a known state; Initialize DMA controllers 0 and 1;Initialize interrupt controller 0 and 1; Initialize EISA extended Regis- ters.Get manufacturing status, reset if

- WV, disable video, parity checking, DMA; Reset math Co-

Error Code

function is working properly. Initialize chips.

Appendix A

Phoenix&Dell (06)Initi

alize system hardware (Beep)=1

-1-2-

3.DMA page register write/read test

Error Code

Read/write/verify CPU registers.

Error Code

- 08

1Fh according to INT_TBL. Initialize CMOS timer.

verification in

progress or failure.

Award

Error Code

Check BIOS Checksum.

Phoenix&Dell (09)Set POST flay.(Beep)=1

-1-3-

2. 1st 64K RAM test in

progress.

Error Code

controller.

(06)ROM is enabled. Calculating ROM BIOS checksum, and waiting for Keyboard

AMI

AST

Award Chips & Tech (06)64K RAM Failed.

AMI

Award

Chips & Tech (07)64K RAM failed data test (Base Memory)

ACER (08)Shutdown 0. AMI

Award

Chips & Tech (08)Interrupt Controller bad. Phoenix&Dell (08)Initialize chipset registers with POST values. [Beep]= 1-3-1 RAM refresh

controller input buffer to be free. Calculating ROM BIOS checksum.. Video disabled and system timer test begin Video disabled and system timer counting OK. (06)Support chipset initialize. (06)Test memory refresh toggle; RAM must be periodically refreshed in-order to keep the memory from decaying. This function assures that the memory refresh

in-progress or fail. (07)ROM BIOS checksum passed. CMOS shutdown register test to be done

next.ROM BIOS checksum passed, Keyboard controller I/B free. Going to issue the BAT command to keyboard controller. Going to issue the BAT command to keyboard controller.CH-2 of 8254 initialization half way.CH-2 of 8253 test OK (07)Verifies CMOS's basis R/W functionality Test CMOS interface and battery status; Verifies CMOS is working correctly, detects bad battery. Setup low memory; Early chip set initialization; Memory presence test; OEM chip set routines; Clear low 64K of memory; Test first 64K memory; clear lower 256K of memory, enable parity checking and test parity in lower 256K; test lower 25 If the BIOS detects error 2C,2E,or 30(base 512K RAM error),it displays 6K memory. Set up stack,beep.

(08)CMOS shutdown register test done. CMOS checksum calculation to be done next. BAT command to keyboard controller is issued. Going to verify the BAT command. Going to verify the BAT command. CH-2 of timer initialization over. CH-2 delta count test OK (08)Setup low memory; Early chip set initialization; Memory presence test; OEM chip set routines; Clear low 64K of memory; Test first 64K memory; clear lower 256K of memory, enable parity checking and test parity in lower 256K; test lower 256K memory. Set up stack, beep. Setup interrupt vector table in lower 1K RAM area; Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and initialize INT 00h-

AMI

AST

Chips & Tech (09)Unexpected interrupt is occurring.

AMI

Award

Chips & Tech (0A)Timer cannot interrupt.

(09)CMOS checksum calculation is done, CMOS diag byte written. CMOS initialize to begin. Keyboard controller BAT result verified. Keyboard command byte to be written next.(09)Keyboard command byte to be written next. CH-1 of timer initialization over. CH-1 delta count test OK. (09)Verify BIOS ROM checksum, flush external cache. (09)Program the configuration register of Cyrix CPU. OEM specific cache initialization., Early Cache initialization; Cyrix CPU initialization; cache initialization. Test CMOS RAM checksum; beep; also test extended storage of parameters in the motherboard chipset; if not warm- booting; display the Test CMOS RAM checksum message, if bad, or insert key pressed, load defaults if bad.

(0A)CMOS initialization done(if any). Keyboard command byte code is issued. Going to write command byte data. Go- ing to write command byte data. CH-0 of timer initialization over. CH-0 delta count test OK (0A)Initialize the first 32 interrupt vectors. Initialize INTs 33 to 120.Early Power Management initialization. Setup interrupt vector table in lower 1K RAM area; Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR and initialize INT 00h-1Fh according to INT_TBL. Initialize key- board; Detect type of keyboard controller(optional 8242 or 8248, with Nedadon XOR gate control); Set NUM_LOCK status. Reset keyboard test keyboard controller interface to verify it returned AAH and responded to enable/disable commands, set keyboard buffer, enable keyboard and keyboard interrupts for normal use, beep, halt .Initialize Video

64K RAM chip or data line failure multi

bit.

Error Code

BIOS Only). Test CMOS RAM checksum; beep; also test extended storage of parameters in the

find out type of video in use; Detect and initialize video adapter. 8254 timer, channel 0 test.

Phoenix&Dell (0B)Enable CPU Cable

Check CPU Jumpers. [Beep]=1

-3-

4 1st 64K RAM

Error Code

NUM_LOCK status. Reset keyboard test keyboard controller interface

timer, channel 1 test.

1st 64K RAM address line failure.

Error Code

(0D)(Beeps)=13 short,8254 timer register.

timer, channel 2 test.

AMI

Error Cod

e - 0E

Enable shadow according to setup. Test COMS

Shutdown byte.

AMI

Award

detect and initialization. Test Extended CMOS.

Error Code

Appendix A

Phoenix&Dell (0A)Initialize CPU registers. (Beep)=1-1-3-3. Perform BIOS checksum test. 1st

AMI

Award

Chips & Tech (0B)CPU protected mode.

AMI

Award

Chips & Tech (0C)DMA register failure. Phoenix&Dell (0C)Initialize cache to initial POST value. Test DMA page registers. [Beep]=1-4-1

AMI

AST Chips & Tech (0D) (Beeps)=14 short, Refresh failure. Award

Phoenix&Dell (0D)[Beep]=1-4-2 1st 64K RAM parity test in progress or failure. AST

Award

Chips & Tech (0E)(Beeps)=14 short, Keyboard controller failure. Phoenix

AST

Chips & Tech (0F)(Beeps)=15 short, Protected mode failure. Phoenix (0F)Initialize the local IDE

AMI

CMOS status register initialize done. Keyboard controller command byte is written. Going to issue Pin-23,24 block- ing/ unblocking command. Going to issue pin-23,24 blocking/ nubolcking command. Refresh started. Parity status cleared (0B)Verify the RTC time is valid or not. Detect bad battery. Read CMOS data into BIOS stack area. Perform PnP initializations. Assign I/O & Memory for PCI devices (PCI

motherboard chipset; if not warm-booting, display the Test CMOS RAM check- sum message, if bad, or insert key pressed, load defaults if bad. Initialize video interface; Detect CPU clock; Read CMOS location 14b to

odd/even logic failure. (0C)KB controller I/B free. Going to issue the BAT command to keyboard

controller. Pin-3,24 of keyboard controller is blocked/unblocked. NOP command of key- board controller to be issued next. NOP command of key- board controller to be issued next. System timer started. Refresh & system timer OK (0C)Initialization of the BIOS data area(40:00-40:FF). Initialize keyboard; Detect type of keyboard controller (optional 8242 or 8248, with Nedadon XOR gate control); Set

to verify it returned AAH and responded to enable/disable commands, set keyboard buffer, enable keyboard and keyboard interrupts for normal use,beep,halt.8254

(0D)BAT command to keyboard controller is issued. Going to verify the BAT command. NOP command processing is done. CMOS shutdown register test to be done next. CMOS shutdown register test to be done next. Refresh link toggling passed. Refresh link toggling passed.

(0D)Program some of the chipset's value. Measure CPU speed for display. Video initialization including MDA, CGA,EGA/VGA. Initialize video interface; Detect CPU clock; Read CMOS location 14b to find out type of video in use; Detect and initialize video adapter. OEM specific-Initialize motherboard special chipset as required by OEM; initialize cache controller early, when cache is separate from chipset.8254

(0E)(Beeps)=14 short, ASIC registers. (0E)Keyboard controller BAT result verified. Any initialization after KB controller BAT to be next. CMOS shutdown register R/W test passed. Going to calculate CMOS checksum, and update DIAG. Goint to calculate CMOS checksum,and update DIAG Byte. Refresh period ON/OFF 50% OK (0E)Initialize the APIC(Multi-Processor BIOS only). Test video RAM(If Monochrome display device found). Show startup screen message. Test video memory; Test video memory, write sign-on message to screen. Setup shadow RAM-

(0E)Initialize I/O.(Beep)=1-1-4-3. Test 8254 timers. (0F)initialization after KB controller BAT done. Keyboard command byte to be

written next. CMOS checksum calculation is done, DIAG byte written. CMOS Init. To begin(If "INIT CMOS IN EVERY BOOT IS SET").CMOS initialization to begin(If "INIT CMOS IN EVERY BOOT IS SET"). (0F)(Beeps)=15 short,CMOS RAM shutdown. (0F)DMA channel 0 Test. Test DMA controller 0; BIOS checksum test, keyboard

(10)KB controller command byte is written. Going to issue pin-23,24 blocking/unblocking command. CMOS initia- lization done(if any). CMOS status

Error Code - 0F

Compaq

(10)PPI disabled, Program timers 0 & 1.

Pho

enix&Dell (10)Initialize Power Management.(Beep)=1

-2-1-

1.Initia

Error Code

lize

Compaq

(11)Init(blast)VDU controllers.

Phoenix&Dell (11)Load alternate registers with POST values.(Beep)=1

-2-

2. 1st 64K RAM chip or

Error Code

Compaq

(12)Clear screen, turn on video.

0.(Beep)=1

-2-1-

3.Test both 8237 DMA controllers. 1st 64K RAM chip or data line

Error Code

Compaq

(13)Test timer 0.

Phoenix&Dell [Beep]=2

-1-

4 1st 64K RAM chi

p or data line failure

bit 3. Initialize PCI Bus

(14)DMA Controller.

Error Code

Compaq

4)Disable RTC interrupts.

Phoenix&Dell (14)Initialize keyboard

blocking/unblocking command. CMOS initia- lization done(if any). CMOS status register about to Init for Date and Time. CMOS status register about to Init for Date and Time. Refresh on and about to start 64K base memory test. Confirmed refresh ON & about to start 64K memory.

AST Award

Chips & Tech (10)(Beeps)=19 short, IDT,GDT failure.

AMI

AST Award

Chips & Tech (11)Register LDT failure.

AMI

AST Award

Chips & Tech (12)Task register failure. Phoenix&Dell (12)Restore CPU control word during warm boot. Jump to User Path

AMI

AST Award

Chips & Tech (13)LSL instruction failure.

ACER AMI

AST Award

Chips & Tech (14)LAR failure.

AMI

Award

Compaq

(10)DMA controller test 0 register (10)DMA channel 1 Test. Test DMA controller 1 with AA, 55,FF,00 pattern.8237 DMA,channel 0 test.

timers.[Beep]=2-1-1 1st 64K RAM chip or data line failure-bit 0. (11)Pin23,24 of keyboard controller is blocked/unblocked. Going to check to check

pressing of <INS>key during power-on.CMOS status register initialized. Going to disable DMA and Interrupt controllers. Going to disable DMA and interrupt controllers. Address line test passed. Address line test passed. (11)DMA controller test register 1. (11)DMA page register test. Test DMA page registers, use I/O ports to test address circuits. POST enables user reboot here. Test DMA page registers. FATAL DISPLAY ERRORS.8237 DMA, channel 1 test.

data line failure-bit 1. (12)Checking for pressing of <INS>key during power-on done. Going to disable

DMA and Interrupt controllers.DMA controller#1,#2,interrupt controller#1,#2 disabled. About to disable Video display and Init port-B. About to disable video display and Init port-B.64K base memory test passed. 64K base memory test passed. (12)DMA page registers test. (12)Call support 800-909-3424. Test 8254 timer 0 channel 0. Test DMA page registers.

failure-bit 2. (13)DMA controller#1,#2,interrupt controller#1,#2disa- bled. About to disable

Video display and initialize port-B. Chipset initialize/auto memory detection about to begin. Replace first memory SIMM.(13)Chipset initialize/auto memory detection about to begin. Check first SIMM.(13) Interrupt vectors initialized. (13)Initialize video. (13)Test 8254 timer 0 channel 1. Test keyboard controller.

Mastering devices.

(14)Chipset initialization/auto memory detection over. To un-compress the POST code if compressed BIOS.8254 timer test about to start.8254 timer test about to start.8042 keyboard controller test OK. (14)Memory refresh test. (14)Test 8254 timer 0 counter 2. Test timer counter 2; Test 8254 timer 0 counter 2. Test memory refresh.

controllers.[Beep]=2-2-1 1st 64K RAM chip or data line failure-bit 4. (15)POST code is un-compressed.8254 timer about to start. CH-2 timer test

halfway.8254 CH-2 timer test to be complete.8254 CH-2 timer test to be completed. Interrupt vectors initialized. CMOS read/write test OK. (15)test 8259 interrupt mask bits for channel 1. Test 8259-1 mask bits; Verify 8259 channel 1 masked interrupt by alternate turning off and on the interrupt line. Test 1st 64K of system memory. (15)Check battery power.

controller.(Beep)=1-2-2-1.Initialize 8237 DMA

Error Code - 15

Appendix A

8254

Chips & Tech (15)VERW/VERR failure.

Phoenix&Dell (15)[Beep]=2

-2-

2 1st 64K RAM chip or data line failure

bit 5.

Compaq

Error Code

(16)Battery power was lost.

Phoenix&Dell (16)BIOS ROM checksum.(Beep)=1

-2-2-

Error Code

Compaq

(17)Cler CMOS

DIAG

(18)Timer initialize.

Error Code

Compaq

(18)Test base memory(first 128K)

registers.[Beep]=2

-3-

1 1st 64K RAM chip or data line failure

bit 8.

Error Code

NMI can be cleared. 8259 Interrupt controller, channel 1 mask bits

(19)Clear and initialize base memory.

Compaq

(1A)Initialize and test VDU adapter

occurring.[Beep]=2

-3-

3 1st 64K RAM chip or data line failure

bit A.

Error Code

(1B)Test CMOS battery status. Test the system ROM.

Phoenix&Dell (1B)[Beep]=2

-4-

1 1st 64K RAM chip or data line failure

bit B.

Error Code

Award

(1C)Test CMOS RAM checksum. Test CMOS.

Programmable Interr

upt Controller.(Beep)=1

-2 -4-

1.Base 64K address test.

Error Code

(1D)Test DMA controller and page registers.

Appendix A

AMI Award

Chips & Tech (16)Keyboard controller gate A20 failure.

AMI Award

Phoenix&Dell (17)Initialize cache before memory auto-size.[Beep] =2-2-4 1st 64K RAM chip or

ACER AMI AST Award

Dell Chips & Tech (18)Shutdown during memory test.

Phoenix&Dell (18)8254 timer initialization.(Beep)=1-2-3-1. Test 8259 interrupt controllers

AMI

Award

Compaq Phoenix&Dell (19)check memory[Beep]=2-3-2 1st 64K RAM chip or data line failure-bit 9.

AMI Award Chips & Tech (1A)Copyright checksum errors.

Phoenix&Dell (1A)8237 DMA controller initialization.(Beep)=1-2-3-3. Verify refresh is

(16)CH-2 timer test over.8254 CH-1 timer test to be complete. CMOS checksum/battery check OK (16)Test 8259-2 mask bits; Verify 8259 channel 2 masked interrupt by alternate turning off and on the interrupt line. Setup Interrupt vectors.

Coprocessor.[Beep]=2-2-3 1st 64K RAM chip or data line failure-bit 6. (17)CH-1 timer test over.8254 CH-0 timer test to be completed. Monochrome mode

set. (17)Test struck 8259's interrupt bits; Turn off interrupt then verify no interrupt mask register is on. Setup video I/O operations.

data line failure-bit 7.

Initialize 8259, reset

(18)CH-0 timer test over. About to start memory refresh. Color mode set. (18)Testing Video memory. (18)Test 8259 interrupt functionality; Force an interrupt and verify the interrupt occurred. Test video memory. (18)[Beep]= 2-3-1 1st 64K RAM chip or data line failure- bit 8

(19)82 timer test over. Memory refresh test to be done next. About to look for optional video ROM at segment C000 and give control to the optional video ROM if present. (19)Test 8259 functionality. Test stuck NON-Maskable Interrupt bits(Parity/I/O check);Verify

test.

Error Code - 1A (1A)Memory refresh line is toggling. Going to check 15 micro second ON/OFF time. Return from optional video ROM. Optional video ROM control OK (1A)Display CPU clock.8259 Interrupt controller, channel 2 mask bits test.

AMI

Award Chips & Tech (1b)Shutdown during memory sizing.

ACER (1C)Memory refresh. AMI

Chips & Tech (1C)Chip-Set initialization. Phoenix&Dell (1C)[Beep]=2-4-1 1st 64K RAM chip or data line failure- bit C.Reset

AMI

Compaq Phoenix&Dell (1D)[Beep]=2-4-2 1st 64K RAM chip or data line failure- bit D

(1B)Memory refresh period 30 micro second test complete. Base 64K memory test about to start. Shadow RAM enable /disable completed. Display memory read/write test OK.

(1C)Display memory read/write test for main display type as set in the CMOS setup program over. Display memory read/write test for alternate display OK.

(1D)Display memory read/write test for alternate display type complete if main display memory read/write test returns error. Video retrace check OK. Set configuration from CMOS.

Error Code - 1E

(1E)Test keyboard controller.

Compaq

Error Code

Compaq

(1F)Test

286 protected mode.

Compaq

(20)Test real and extended memory.

refresh.(Beep)=1

-3-1-

1. Upper 16 of 32 bit test failed.

Compaq

(21)Init time

-of-

day.

Compaq

(22)Init 287 Coprocessor.

keyboard controller.(Beep)=1

- 3-1-3

Compaq

(23)Test keyboard and interface.

Compaq

Error Code

(25)Test diskette su

bsystem.

AMI Error Code

Appendix A

ACER AMI Award

Phoenix&Dell (1E)[Beep]=2-4-3 1st 64K RAM chip or data line failure- bit E.Base 64K RAM

AMI

Award Phoenix&Dell (1F)[Beep]=2-4-4 1st 64K RAM chip or data line failure- bit F. ACER

AMI

AST Award

Phoenix&Dell (20)[Beep]=3-1-1 master DMA register test in-progress or failure. Test DRAM

AMI Award

Phoenix&Dell (21)[Beep]=3-1-2 slave DMA register test in-progress or failure. AMI Award Phoenix&Dell (22)[Beep]=3-1-3 master interrupt mask register test in- progress or fail. Test 8742

AMI

Award Phoenix&Dell [Beep]=3-1-4 slave interrupt mask register test in-progress or fail. ACER

AMI Award

Compaq Phoenix

AMI Award Phoenix&Dell (25)[Beep]=none interrupt vector loading in-progress. AMI Award

Compaq Phoenix 6.0

(1E)Select memory type. (1E)Global equipment byte set for proper display type. (1E)If EISA NVM checksum is good, execute EISA initialization(EISA BIOS ONLY). Size system memory.

test(16 bits). (1F)Video mode set call for mono/color begins. Mode set call for mono/color OK.

Set EISA mode; If EISA non- volatile memory checksum is good, execute EISA initialization. If not, execute ISA test an clear EISA mode flag. Test EISA configuration memory integrity(checksum & comm.- unication interface). (1F)Test system memory.

Error Code - 20 (20)Test 128K. (20)Memory refresh period 30 micro second test complete. Base 64K memory/address test started. Address line test to be done next. Video mode set completed. (20)Power up bus board(EISA only). (20)Enable slot 0;Initialize slot 0(system board).(Check memory size).8259 stuck bits test.

Error Code - 21 (21)Address line test passed. Going to do toggle parity. (21)ROM type 27256 verified. Video display OK. (21)Enable slots 1 through 15;Initialize slot 1.Test stuck NMI bits (parity I/O check).

Error Code - 22 (22)Toggle parity over. Going for sequential data R/W test on 64K memory. Power on message display OK. (22)Enable slots 2; Initialize slot 2.Test 8259 working.

Error Code - 23 (23)Base 64K sequential data R/W test passed. Going to SET BIOS stack and to do any setup before Interrupt vector Init. Any setup before interrupt vector Init about to start. Power on message displayed. (23)Enable slots 3;Initialize slot 3.Test protected mode.

(24)Test keyboard controller(8042). (24)Setup required before vector initialization complete. Interrupt vector initialization about to begin. (24)Enable slots 4;Initialize slot 4.Size extended memory. (24)reset A20 ads set default CPU speed. (24)Set ES segment to register to 4 GB.(beep)=1-3-2-1. Verify CMOS/Configure CMOS.

(25)Interrupt vector initialization done. Going to read Input port of 9042 for turbo switch(if any).Going to read I/O port of 8042 for turbo switch(if any). (25)Enable slots 5;Initialize slot 5.Test extended memory.

(26)I/O port of 8042 is read. Going to initialize global data for turbo switch. Going to initialize global data for turbo switch. (26)Enable slots 6;Initialize slot 6.Test protected mode exceptions. (26)Test fixed disk subsystem. (26)Enable A20 line. Verify/Load NVRAM parameters.

(27)Global data initialization for turbo switch is over. Any initialization before setting video mode to be done next.

Error Code - 25

Error Code - 27

Compaq

(27)initialize parallel printer.

Appendix A

Error Code

Compaq

(28)Perform search for option ROMs

DRAM.(Beep)=1

-3-3-

1.Protected mode 1.

Compaq

Error Code

(29)Test for valid system configuration.

Error Code

Compaq

(2B)

Check for invalid time and date.

Phoenix

Award

Error Code

(2D)Enable slots D; Initialize slot D. Detect & initialize parallel

ports. Test timer 2.

AST Error Code

setting video mode to be done next.

Award Phoenix&Dell (27)[Beep]=3-2-4 keyboard controller test in-progress or failure. ACER (28)Test CPU.

AMI Award Phoenix&Dell (28)[Beep]=3-3-1 CMOS power-fail and checksum checks in-progress. Auto-size

(27)Enable slots 7; Initialize slot 7.Setup cache control or shadow RAM.

(28)initialization before setting video mode is complete. Going for monochrome mode and color setting .Check extended memory. (28)Enable slots 8;Initialize slot 8. Setup 8242.

AMI Award

Phoenix&Dell (29)[Beep]=3-3-2 CMOS configuration info validation in- progress. Initialize POST

AMI Award

Compaq Phoenix

AMI Award Phoenix&Dell (2B)[Beep]=3-3-4 screen memory test in-progress or failure. ACER

AMI Award

Compaq Dell

AMI

Phoenix& Dell (2D)[Beep]=3-4-2 screen retrace tests in-progress or failure. AMI Award

Dell Phoenix

AMI Award Compaq Phoenix

ACER AMI

(29)Monochrome mode setting is done. Going for color mode setting. (29)Enable slots 9;Initialize slot 9.

Memory Manager. (2A)monochrome Color mode setting is done. About to go for toggle parity before

optional rom test. About to go for toggle parity before optional ROM Check. (2A)Enable slots A; Initialize slot A.(2A)8242 initialization. (2A)Clear screen. (2A)Clear 512K base RAM.(Beep)=1-3-3-3.Aubo-site me- mory chips. Error Code - 2B (2B)Toggle parity over. About to give control for any setup required before optional video ROM check. (2B)Enable slots B; Initialize slot B. Initialize floppy drive and controller.

(2C)Set up interrupt controller(8259). (2C)Processing before video ROM control is done. About to look for optional video ROM and give control. (2C)Enable slots C;Initialize slot C.Detect & initialize serial ports. (2C)Boot. (2C)[Beep]=3-4-1 screen initialization in-progress or failure. (2C)RAM failure on address xxxx.If the BIOS detects error 2C,2E,or 30(base 512K RAM error),it displays and additional word-bitmap(xxxx)indication the address line or bits that failed. For example, "2C 0002"means address line 1 (bit one set) has failed. "2E 1020 means data bits 12 and 5 (bits 12 and 5 set) have failed in the lower 16 bits. Note that error 30 cannot occur on 386SX systems because they have a 16 rather than 32-bit bus. The BIOS also sends the bitmap to the port-80 LED display. It first display the check point code, followed by a delay, the high-order byte, another delay, and then the low-order byte of the error. It repeats this sequence continuously. Test 512 base address lines.(Beep)= 1-3-4-1 Activate interleave(if possible).[Beep]3-4-1 screen initialization in-progress or failure.

(2D)Optional video ROM control is done. About to give control to do any processing after video ROM returns control.

(2E)Return from processing after the video ROM control. If EGA/VGA not found then do display memory R/W test. (2E)Enable slots E; Initialize slot E. Initialize hard drive & controller. (2E)[Beep]=3-4-3 search for video ROM in-progress. (2E)See Error code "2C".Test 512K base memory.(Beep)= 1-3-4-3.Exit 1st protected mode test.[Beep]=none search for video ROM in-progress.

(2F)EGA/VGA not found. Display memory R/W test about to begin. (2F)Enable slots F; Initialize slot F. Detect & initialize 80x87 Co-Processor. (2F)Write to DIAG byte. (2F)Enable cache before system BIOS shadow.

(30)Set up Temp. interrupt. (30)display memory R/W test passed. About to look for the retrace checking. Virtual mode memory test about to begin. (30)Interrupt controller#1.

Error Code - 2D

Error Code - 2F

Error Code - 30

Compaq

(31)Load interrupt vectors 70

77.

Award

Phoenix

Compaq

Error Code

(33)Initialize Memory SIZE and RESETWD.

Error Code

Compaq

(34)Verify CMOS checksum.

Error Code

Compaq

(35)CMOS checksum not valid.

Compaq

Error Code

(36)Check battery power.

Error Code

Compaq

(37)Check for game adapters.

(38)CMOS RAM.

Error Code

Compaq

(38)Check for serial ports.

Appendix A

Award Compaq

Dell Phoenix

AMI AST

Award

Phoenix&Dell (31)[Beep]=none monochromatic screen believed operable. AMI AST

Compaq Dell

AMI

AST Award

Phoenix&Dell (33)[Beep]=none 80-column color screen believed operable. Initialize dispatch

ACER AMI

Phoenix&Dell (34)[Beep]=4-2-1 timer tick interrupt test in progress or failure. Relocate memory

AMI

Phoenix&Dell (35)[Beep]=4-2-2 shutdown test in progress or failure. AMI

Phoenix&Dell (36)[Beep]=4-2-3 gate A20 failure. Warm start shut down. Configure EMS memory

AMI

Phoenix&Dell (37)[Beep]=1-4-2-4 unexpected interrupt in protected mode. Reinitialize the

ACER AMI

Phoenix&Dell (38)[Beep]=4-3-1 RAM test in progress or failure above address 0FFFFh Phoenix

(30)Get base memory & extended memory size. Size base And extended memory from 256K to 640K and extended memory above 1MB. (30)Clear 1st 128K bytes of RAM. (30)[beep]=none screen believed running w/video ROM. (30)see Error Code "2C".Unexpected shutdown.[Beep]=no- ne screen believed operable. [Beep]=none screen believed running w/video ROM.

(31)Display memory R/W test or retrace checking failed. About to do alternate Display memory R/W test. Virtual mode memory test started. (31)Interrupt controller#2. (31)Test base and extended memory; Test base memory from 256K to 640K and extended memory above 1MB using various patterns. Detect & initialize optional ROMs.

(32)Alternate display memory R/W test passed. About to look for the alternate display retrace checking. Processor executing in virtual mode. (32)Interrupt controllers for stuck interrupt. (32)Display the Award Plug & Play BIOS extension message(PnP BIOS only).Test EISA extended memory; If EISA mode flag is set then test EISA memory found in slots initialization, This test is skipped in ISA mode and can be skipped with ESC key in EISA mode. (32)Load interrupt vectors 00-1F. (32)[Beep]=none 40-column color screen believed operable. (32)Test CPU bus-clock frequency.(Beep)=1-4-1-3.Deter- mine system board memory size. [Beep]=none 40-column color screen believed operable.

(33)Video display checking over. Verification of display type with switch setting and actual card to begin. Verification of display type with switch setting and Actual Card to begin. Memory address line test in progress. (33)Non-maskable interrupt for stuck interrupt(EISA,P486, P386) (33)Call Tech Support 727-532-4151.

Manager. (34)Set up BIOS interrupt vector.

(34)Verification of display adapter done. Display mode to be set next. Memory address line test in progress.

option. (35)Display mode set complete. BIOS ROM data area about to be checked.

Memory below 1MB calculated.

(36)BIOS ROM data area check over. Going to set cursor for power on message. Memory above 1MB calculated.

option. (37)Cursor setting for power on message id complete. Going to display the power

on message. Memory test about to start.

motherboard chipset.

Error Code - 31

Error Code - 33

(38)Power on message display complete. Going to read new cursor position. Memory below 1MB initialized.

(38)Shadow system BIOS ROM.(Beep)=1-4-3-1.Configure wait state option.

Error Code - 39

Compaq

(3A)Initialize Port. And comm. timeouts.

Compaq

(3B)Flush keyboard buffer.

Error Code

Phoenix

speed.

Phoenix

Error Code

(3D)Load alternate registers with CMOS values,(Beep)= 1

-4-4-

Phoenix 3.07

Error Code

(3E)Get switches/jumper status from 8742.

ACER

Error Code

in the EISA configuration.

(40)Shutdown#1.

Error Code

Initialize any serial and parallel ports (also game port).

(44)Video BIOS ROM initialize.

Error Code

AMI Compaq

Phoenix AMI

Award Phoenix&Dell (3A)[Beep]=4-3-3 Interval timer channel 2 test in progress or failure.

Phoenix AMI

Phoenix&Dell (3B)[Beep]=4-3-4 Time-Of-Day clock test in progress or failure. ACER

AMI Award

Phoenix&Dell (3C)[Beep]=4-4-2 Serial port test in progress or failure. AMI

Award

Phoenix&Dell (3D)[Beep]=4-4-2 Parallel port test in progress or failure. AMI

Award Phoenix&Dell (3E)[Beep]=4-4-3 Math CoProcessor test in progress or failure. AMI

Award Dell ACER

AMI AST

Award Compaq Phoenix

AMI AST

Award Compaq

AMI AST

Award Compaq Phoenix

AMI Award Compaq

(39)New cursor position read and saved. Going go display the Hit<DEL>message. Memory above 1MB initialized. (39)Check for parallel ports. (39)Reinitialize the cache.(Beep)=1-4-3-1

(3A)Check memory, first 64K,one long beep. Reference string display is over. Going to display the Hit<ESC> massage. Memory size display initiated. This will be updated when the BIOS goes through the memory. (3A)Check memory.

(3A)Auto-size cache.(Beep)=1-4-3-3.Retest 64K base RA M. (3b)Hit<DEL>or<ESC>message displayed. Virtual mode memory test about to

start, About to start below 1MB memory test.

(3C)Memory size. (3C)Memory test below 1MB completed and about to start above 1MB test. (3C)Set flag to allow users to enter CMOS setup utility. Setup enabled. (3C)Configure advanced chipset registers.(Beep)=1-4-4-1. Determine relative CPU

(3D)Memory test above 1MB completed. (3D)Initialize keyboard. Install PS/2 mouse. Initialize & install mouse; Detect if mouse is present, initialize mouse, install interrupt vectors.

(3E)About to go to real mode(shutdown). (3E)Try to turn on level 2 cache.,

(3F)Shutdown successful and Processor in real mode. (3F)Enable shadow RAM per CMOS RAM setup or if ME- MORY TYPE is SYS

(3F)Cache memory failure.

Error Code - 3A

Error Code - 3B

(40)Preparation for virtual mode test started. Going to verify from video memory. CACHE memory on and about to disable A20 address line. (40)CMOS RAM backup battery. (40)Display virus protest disable or enable. (40)Save RESET WD value. (40)Set initial CPU speed.(Beep)=2-1-1-1.

(41)Returned after verifying from display memory. Going to prepare the descriptor bables.A20 address line disabled successful. (41)CMOS RAM checksum. (41)Initialize floppy disk drive controller. (41)Check RAM refresh.

(42)descriptor tables prepared. Going to enter in virtual mode for memory test.486 internal cache turned on. About to start DMA controller test. (42)Setup CMOS RAM. (42)Initialize hard drive & controller; Initialize hard drive controller and any drives. (42)Start write cycle of 128K RAM test. (42)Initialize interrupt vectors.(Beep)=2-1-1-3.

(43)Entered in the virtual mode. Going to enable interrupts for diagnostics mode. About to start DMA controller test. (43)If it is a PnP BIOS, initialize serial & parallel ports. Detect & initialize serial/parallel ports;

(43)Reset parity checks.

Error Code - 41

Error Code - 42

Error Code - 43

Appendix A

AMI

1. Test for unexpected interrupts.

memory below 1M for soft reset.

(4C)#3 shutdown.

Error Code

Award

AMI

Award Compaq Phoenix

ACER AMI

Award Compaq Phoenix

ACER AMI

Award Compaq

Phoenix AMI

Award Compaq Phoenix

ACER AMI

Phoenix

AMI Phoenix AMI Phoenix

Appendix A

(44)Interrupts enabled(if post switch is on). Going to initialize data to check memory wrap around at 0:0. (44) Going to initialize data to check memory re-map at 0:0. (44)Start verify cycle if 128K RAM test. (44)Initialize BIOS interrupts.(Beep)=2-1-2-1. Verify video configuration.

(45)Set up BIOS RAM . (45)Data initialized. Going to check for memory wrap around at 0:0 and the total system memory size. (45)Detect & Initialize math CoProcessor; Initialize math CoProcessor. (45)Check for parity errors. (45)POST device initialization.

(46)Test controller and cache memory. (46) Memory wrap around test done. Memory size calculation over, writing patterns to test memory. (46)display the setup message(to press Ctrl-Alt-Esc to enter setup), and enable setup. (46)No RAM errors. (46)Check ROM copying notice.(Beep)=2-1-2-3. Initialize video system.

(47)Pattern to be tested written in extended memory,640K memory. (47)Set system speed for boot. (47)Got a RAM error. (47)Initialize manager for PCI Options ROMs.(Beep)=2-1- 2-4.

(48)Memory test. (48)Patterns written in base memory. Going to find out amount of memory below 1M memory. (48)Check Video configuration against CMOS.(Beep)=2- 1-3-

(49)Memory below 1M found and verified. Going to find out amount of memory above 1M memory. (49)Initialize PCI bus and devices.(Beep)=2-1-3-2.

(4A)Amount of memory above 1M found and verified. Going for BIOS ROM data area check. (4A)Initialize all video adapters in system.(Beep)=2-1-3-3. Start 2nd protected mode test.

(4B) Amount of memory above 1M found and verified. Check for soft reset and going to clear memory below 1M for reset.(If power on, go to check point#4Eh).BIOS ROM data area check over. Going to check<ESC> and to clear

Error Code - 45

Error Code - 46

Error Code - 47

Error Code - 48

Error Code - 49

Error Code - 4A

Error Code - 4B

Phoenix ACER

AMI Phoenix

AMI

Phoenix AMI Award

ACER

(4B)Quiet-Boot start(optional).

(4C)Memory below 1M cleared.(SOFT RESET)Going to clear memory above 1M. (4C)Shadow video BIOS ROM.(Beep)=2-1-4-1.Perform LDT instructions test.

(4D)Memory above 1M cleared. (SOFT RESET)Going to save the memory size.(GOTO check point#52h) Error Code - 4E (4E)Memory test started.(NO SOFT RESET)About to display the first 64K memory test. (4E)If there is any error, show all the error messages on the screen & wait for user to press<F1>.Manufacturing POST loop or display messages; Reboot if manufacturing POST loop pin is set. Otherwise display any messages and enter setup. (4E)Display copying notice.(Beep)=2-1-4-3. Perform TR instruction test. Error Code - 4F (4F)Memory size display started. This will be updated during memory test. Going for sequential and random memory test. Processor in real mode after shutdown. (4F)If password is needed, ask for password. Clear the Energy Star logo(Green BIOS only).Security check; Ask password security.

(50)#2 shutdown. (50)Memory testing/initialization below 1M complete. Going to adjust displayed memory size for relocation /shadow. DMA page register test complete.

Error Code - 4D

Error Code - 50

Compaq

(50)Check for dual freq in CMOS.

Compaq

CMOS VDU configuration.

Phoenix (51)In

itialize EISA board.

Error Code

(52)Start VDU search.

Compaq

VDU option ROMs.

Error Code

Compaq

primary display adapter.

Compaq

(55)Initialize secondary display adapter.

Error Code

(56)No display adapters installed.

Compaq

(57)Init primary VDU mode.

ACER (58)#6 shutdown.

Error Code

(58)Start of VDU test (for each adapter).

memory size for relocation /shadow. DMA page register test complete.

AST Award

Chips & Tech (50)Hardware initialize. Phoenix

AMI AST

Award Chips & Tech (51)Timer Initialize

(50)Protected mode. (50)Write all the CMOS values currently in the BIOS stack areas back into the CMOS. Write CMOS; Write all CMOS values back to RAM and clear screen.

(50)Display CPU type and speed.(Beep)=2-2-1-1.(50)Per- form LSL instruction test.[Beep]=none Custom chip set or custom platform.

(51)Memory size display adjusted due to relocation/shadow. Memory test above 1M to follow. DMA unit-1 base register test about to start. (51)Protected mode. (51)Pre-boot enable; Enable parity checker; Enable NMI, Enable cache before boot. (51)Check

Appendix A

Error Code - 51

AMI

Award

Compaq Chips & Tech (52)DMA controller initialize. Phoenix

AMI Award

Chips & Tech (53)Initialize interrupt controller. ACER (54)#7 shutdown.

AMI

Chips & Tech (54)Chip-Set Initialize. Phoenix

AMI Award Chips & Tech (55)EMS configuration Setup. AMI

Compaq Chips & Tech (56) Protected mode. Phoenix

AMI

Chips & Tech (57)Memory size.

(52)Memory testing/initialization below 1M complete. Going to save memory size information. Going to prepare to go back to real mode. DMA unit-1 channel OK, about to begin CH-2. (52)Initialize all ISA ROMs. Later PCI initializations(PCI BIOS only).PnP initializations(PnP BIOS only).Program shadow RAM according to setup settings. Program parity according to setup setting. Power Management initialization. Initialize option ROMs; initialize any option ROMs present from C8000h to EFFFFh.

(52)Test keyboard.(Beep)=2-2-1-3.(52)Perform LAR instruction test. (53)Memory size information is saved. CPU registers are saved. Going to enter in

real mode. DMA CH-2 base register test OK. (53)If it is not a PnP BIOS, initialize serial & parallel ports. Initialize time value in BIOS data area. Initialize time value; Initialize time value in 40h BIOS data area. (53)Vector to

(54)Shutdown successful, CPU in real mode. Going to re- store registers saved during preparation for shutdown. About to check F/F latch for unit-1 and unit-2. (54)Initialize

(54)Set key click if enabled.(Beep)=2-2-2-1.(54)Perform VERR instruction test. (55)Registers restored. Going to disable gate A20 address line. F/F latch for both

units checked. (55)Check PCI video Card-or replace video card.

(56)A20 address line disable successful. BIOS ROM data area about to be checked. DMA unit 1 and 2 programming over and about to initialize 8259 interrupt controller.

(56)Enable keyboard.(Beep)=2-2-2-3.Unexpected exception. (57)A20 address line disable successful. BIOS ROM data area check halfway. BIOS

ROM data area check to be com- plete.8259 initialization over.

AMI

Compaq Chips & Tech (58)Memory interleave configure. Phoenix

(58)Memory size adjusted for relocation/shadow. Going to clear Hit<DEL> message. BIOS ROM data area check over. Going to clear Hit<ESC> message.8259 mask register check OK.

(58)Test for unexpected interrupts.(Beep)=2-3-3-.(58) Perform A20 gate test.

Error Code - 53

Error Code - 55

Error Code - 57

Error Code - 59

Compaq

(59)Check existence of adapter.

Compaq

(5A)Blank display, check VDU registers.

Phoenix (5A)Keyboard ready

Compaq

Error Code

(5B)Start screen memory test.

Phoenix (5B)Display CPU cache.

Compaq

Error Code

of test of adapter, clear memory.

Phoenix (5C)Test RAM between 512 and 640K.(Beep)=2

-2-4-

1. Determine if AT or KT

Error Code

Compaq

(5D)Error detected on an adapter.

Compaq

Error Code

(5E)test the next adapter.

Compaq

(5F)All adapters successfully

tested.

ACER (60)Set up BIOS interrupt.

Compaq

Error Code

(60)Start of memory test.

Compaq

(61)Enter protected mode.

Compaq

Error Code

AMI

Chips & Tech (59)Exiting protected mode. Phoenix

AMI Chips & Tech (5A)Board memory size.

AMI Chips & Tech (5B)Shadow RAM relocated.

(59)Hit<ESC> message cleared.<Wait..> message displayed. About to start DMA and interrupt controller test. Master 8259 mask register OK, about to start slave.

(59)Initialize POST display service. (5A)About to check timer and keyboard interrupt level.

SETUP".(Beep)=2-2-3-3 (5B)Timer interrupt OK.

Appendix A

Error Code - 5A

test. Display prompt "press F2

enter

ACER AMI

Chips & Tech (5C)EMS configure.

AMI Chips & Tech (5D)Wait state configuration is set-up. AMI Chips & Tech (5E)1st 64K RAM re-test.

Phoenix AMI Chips & Tech (5F)Shadow RAM.

(5C)About to test keyboard and I/O.` (5C)About to test keyboard interrupt. (5C)End

keyboard type. (5D)ERROR! Timer/keyboard interrupt not in proper level.

(5E)8259 interrupt controller error.

(5E)Enter third protected mode test. (5F)8259 interrupt controller test OK.

AMI AST

Award Chips & Tech (60)CMOS RAM.

Phoenix AMI

AST Award

Chips & Tech (61)Video. AMI

AST Award

Compaq Phoenix

AMI AST Award

(60)DMA page register test passed. About to go for DMA #1,verify from display memory. (60)RAM size. (60)Setup virus protection(Boot sector protection).

(60)Test expanded memory.(Beep)=2-3-1-1.(60)Base memory test. (61)Display memory verification over. About to go for DMA #1 base register test.

(61)RAM test. (61)Try to turn on level 2 cache. Set the boot up speed according to setup setting. Last chance for chipset initialization. Last chance for power management initialization. Show the system configuration table.

(62)DMA#1 base register test passed. About to go for DMA #2 base register test. (62)Shadow RAM. (62)Setup daylight saving according to setup values. Program the NUM lock, type rate & type speed according to setup setting. Setup NUM_LOCK; Setup NUM_LOCK status according to setup. (62)Start memory sizing. (62)Test extended memory address lines.(Beep)=2-3-1-3. Base memory address test.

(63)DMA #2 base register test passed. About to go for BIOS ROM data area check. (63)Cache memory. (63)If there is any changes in the hardware configuration, update the ESCD information(PnP BIOS only. Clear memory that have been used. Boot system via INT 19h. (63)Get CMOS size.

Error Code - 5F

Error Code - 61

Error Code - 63

Chips & Tech (63)Protected mode interrupt.

ACER (64)Start test real time clock.

Compaq

Error Code

(64)Start test of real memory.

Compaq

(65)Start test of extended memory.

Compaq

Error Code

(66)Save size of real and extended memory.

Compaq

(67)Update 128K

Option installed CMOS bit.

Phoenix (67)Initialize Multi Processor APIC.

Error Code

Compaq

(69)Back in real mode

test successful.

Compaq

(6A)Back in real mode

error during test.

Phoenix (6A) Display external cache size.(Beep)=2

-3-3-

3.Determine memory test.

Error Code

Chips & Tech (6B)Test Math chip.

Compaq

Erro

r Code

(6C)End of memory test.

Compaq

(6D)Initialize KB OK display string.

& Tech (6E)Dual card.

Error Code

(6F)Start of MEMORY TEST.

Compaq

(70)Display XXXXX KB OK.

Error Co

de - 70

Compaq

AMI AST Chips & Tech (64)Address line A20.

Phoenix AMI

AST Chips & Tech (65)Memory address lines. AMI AST Chips & Tech (66)Memory Test.

Compaq AMI

AST Chips & Tech (67)Extended memory.

ACER (68)Test floppy disk. Compaq Chips & Tech (68)Timer interrupt. Phoenix

(64)BIOS ROM data area check halfway. BIOS ROM data area check to be complete. (64)Copy BIOS to shadow RAM.

(64)Jump to User Patch 1.(Beep)=2-3-2-1.Shadow memory test. (65)DMA #2 base register test passed. About to program DMA unit 1 and 2. (65)Copy

video BIOS to shadow RAM.

(66)DMA unit 1 and 2 programming over. About to initialize 8259 interrupt controller. (66)8254 timer channel #2.

(66)Configure advanced cache registers.(Beep)=2-3-2-3. Extended memory test. (67)8259 initialization over. About To start keyboard test.

(67)Memory initialize.

(68)Prepare to return to real mode. (68)Enable external and CPU caches.(Beep)=2-3-3-1. Ex- tended address test.

Chips & Tech (69)Real Time clock. Phoenix

(69)Setup System Management Mode(SMM) area.

Chips & Tech (6A) Keyboard controller.

Appendix A

Error Code - 65

Error Code - 67

Error Code - 69

Error Code - 6A

Compaq (6B)Display error messages. Phoenix ACER Chips & Tech (6C)Test serial port(RS232).

Phoenix

Chips & Tech (6D)Test parallel ports. Compaq (6E)Determine size to test. Chips Phoenix

Compaq Chips & Tech (6F)Test floppy drive controller.

ACER AMI

Chips & Tech (70)Test hard drive controller. Phoenix

AMI

(6B)Load custom defaults(optional). (6C)Test hard disk drive.

(6C)Display shadow message.(Beep)=2-3-4-1.Display error messages. Error Code - 6D

(6E)Display possible high address for UMB recovery. Display non-disposable segments.(Beep)=2-3-4-3.Configure ROM/RAM BIOS. Error Code - 6F

(70)About to test parallel port. (70)start of keyboard test.

(70)Display error messages.(Beep)=2-4-1-1.System time test. controller BAT test over.

(71)Test each RAM segment.

Error Code - 71 (71)Keyboard

Chips & Tech (71)Key-lock.

Compaq

Error Code

(72)High order address test.

Phoenix

(73)Global data initialization for keyboard/mouse over.

(74)About to test serial port.

Error Code

(74)Test real

time clock.(Beep)=2

-4-2-

1.Test for stuck keys.

(75)Start of protected mode test.

Error Code

(76)Check for keyboard errors. (Beep)=2

-4-2-

3.Initialize hardware interrupt

(78)Set real time.

Error Code

(7B)CMOS battery verification over.

(7C)scan option. RAMs.

Error Code

AMI Chips & Tech (72)Pointing divide.

Phoenix AMI

Compaq ACER

AMI Compaq Phoenix

AMI Compaq

AMI Compaq Phoenix

AMI Compaq

ACER Compaq Phoenix

AMI Compaq

AMI Compaq Phoenix

AMI Compaq

ACER Compaq Phoenix

AMI Compaq AMI

Compaq Phoenix

AMI Compaq ACER

AMI

Compaq Phoenix

AMI Compaq

(72)Keyboard interface test over, mouse interface test started.

(72)Check for configuration errors.(Beep)=2-4-1-3.(72) Real time clock test.

(73)Exit memory test.

(74)Display 'SETUP' prompt and about to start floppy setup. (74)Parity error on bus after memory test, system halted.

(75)Floppy setup over.

(76)Hard disk setup about to start. (76)Prepare to enter protected mode.

vectors. (77)Hard disk setup over.

(77)Test software exceptions.

(78)Prepare to return to real mode. (78)Detect and test CoProcessor.

(79)About to initialize timer data area. (79)Back in real mode-No error.

(7A)Timer data initialized and about to verify CMOS battery power. (7A)Back in real mode-error. (7A)Determine/Init COM channels.

(7B)Exit protected mode.

(7C)High order address test failure. (7C)Set up hardware interrupts vectors.(Beep)=2-4-4-1.Determine LPT channels.

(7D)About to analyze POST results. About to analyze diagnostic test results for memory. (7D)Enter cache controller test.

(7E)CMOS memory size updated. (7E)Exit cache controller test. (7E)Test CoProcessor if present.(Beep)=2-4-4-3.Initialize BIOS data area.

(7F)Look for <DEL>key and get into CMOS setup if found About to check optional ROM C000:0. (7F)Copy System ROM to high RAM.

(80)Determine math CoProcessor is present. (80)Keyboard test started, clearing output buffer, checking for stuck key, About to issue keyboard reset command. About to give control to optional ROM in segment C800 to DE00. (80)Start of 8042 test. (80)Disable onboard Super I/O ports and IRQs.(Beep)=3-1- 1-1.Detect floppy controller.

(81)Keyboard reset error/stuck key found. About to issue keyboard controller interface test command. Optional ROM control over. (81)Do 8042 self-test. (81)late POST device initialization.

Appendix A

Error Code - 73

Error Code - 76

Error Code - 78

Error Code - 79

Error Code - 7A

Error Code - 7B

Error Code - 7D

Error Code - 7E

Error Code - 7F

Error Code - 80

Error Code - 81

Error Code - 82

AMI

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AMI Compaq

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Appendix A

(82)Keyboard controller interface test over. About to write command byte and Init circular buffer. Check for printer ports and put the addresses in global data area. (82)Check result received. (82)Detect and install external RS232 ports.(Beep)=3-1- 1-3.Test floppy drives.

(83)Command byte written, global data Init done. About to check for lock-key. Check for RS232 ports and put the addresses in global data area. (83)Error result. (83)Configure non-MCD IDE controllers.

(84)Keyboard initialize. (84)Lock-key checking over. About to check for memory size mismatch with CMOS. CoProcessor detection over. 80287 check/test OK. (84)OK 8042,Init mode=5D. (84)Detect and install external parallels ports.(Beep)=3-1- 2-1.Fixed disk test.

(85)Memory size check done. About to display soft error and check for password or bypass setup. About to display soft error message. If no video replace Video card. (85)Initialize PC-compatible PnP ISA devices.

(86)Password checked. About to do programming before setup. About to give control to system ROM at segment E000. (86)Start keyboard test, reset keyboard. (86)Re-initialize onboard I/O ports.(Beep)=3-1-2-3.(86)Per form external ROM scan.

(87)Programming before setup complete. Going to uncompress SETUP code and execute CMOS setup. System ROM E000:0 check over. (87)Got acknowledge, read result. (87)Configure Motherboard Configuration Devices(option- al)

(88)System #1 initialize. (88)Returned from CMOS setup program and screen is cleared. About to do programming after setup. (88)Got result, check it . (88)Initialize BIOS Data Area.(Beep)=3-1-3-1.Test key- lock/keyboard type.

(89)Programming after setup complete. Going to display power on screen message. (89)Test for stuck keys. (89)Enable Non-Maskable Interrupts(NMIs)

(8A)First screen message displayed. About to display <WAIT¡->message. (8A)Key seems to be stuck. (8A)Initialize Extended BIOS Data Area.(Beep)=3-1-3-3. wait for F1 test.

(8B)First screen message displayed <WAIT¡->message displayed. About to do Main and Video BIOS shadow. (8B)Test keyboard interface. (8B)Test and initialize PS/2 mouse.

(8C)System #2 initialize. (8C)Main and video BIOS shadow successful. Setup options programming after CMOS setup about to start. (8C)Got result, check it. (8C)Initialize floppy controller.(Beep)=3-1-4-1.Final system initialization.

(8D)Setup options are programmed, mouse check and Init to be done next. Going for hard disk, floppy reset. (8D)End of test, no errors.

(8E)Mouse check and initialization complete. Going for hard disk controller reset. About to go For floppy check. (8E)Interrupt 19 boot loader.

(8F)Hard disk controller reset done. Floppy setup to be done nest. (8F)Determine number of ATA drives(optional)

(90)Invoke interrupt 19 to boot loader. (90)Floppy setup is over. Test for hard disk presence to be done.

Error Code - 83

Error Code - 84

Error Code - 85

Error Code - 86

Error Code - 87

Error Code - 88

Error Code - 89

Error Code - 8A

Error Code - 8B

Error Code - 8C

Error Code - 8D

Error Code - 8E

Error Code - 8F

Error Code - 90

Appendix A

Compaq

(91)CMOS seems to be OK.

Compaq

on CMOS read/writ

e test.

Compaq

(94)Page registers seem OK.

Compaq

(95)DMA controller OK.

Phoenix (95)Install CD ROM for boot.

Error Code

(96)8237 DMA Initialization complete.

AMI

control will be done next.

Phoenix (97)Fix

up Multi Processor table.

Error Code

processing after optional ROM returns control.

Phoenix (98)Search for option ROMs. One long, two short beeps on checksum

Error Code

AMI

(9B)Returned after RS

232 base address. Going to de any initialization before

(9C)#B shutdown.

Error Code

Compaq Chips & Tech (90)Set-up RAM. Phoenix

AMI Chips & Tech (91)CPU speed.

Phoenix AMI Chips & Tech (92)Configuration check.

Phoenix AMI Compaq

Phoenix ACER

AMI

Chips & Tech (94)POD Bootstrap. Phoenix

AMI

Chips & Tech (95)Reset ICS.

AMI

Compaq Chips & Tech (96)BIOS PEAK. Phoenix

Chips & Tech (97)VGA power.

(90)Start of CMOS test . (90)Initialize hard-disk controller.(Beep)=3-2-1-1 (91)Floppy setup complete. Hard disk setup to be done next.

(91)Initialize local-bus hard-disk controller.(Beep)=3-2-1-2 (92)Hard disk setup complete. About to go for BIOS ROM data area check. (92)Error

(92)Jump to User Patch 2.(Beep)= 3-2-1-3 (93)BIOS ROM data area check halfway. BIOS ROM data area check to be

completed. (93)Start of DMA controller test. (93)Build MPTABLE for multi processor boards.

(94)#5 shutdown. (94)Hard disk setup complete. Going to set base and extended memory size. BIOS ROM data area check over.

(94)Disable A20 address line.(Beep)=3-2-2-1 (95)Memory size adjusted due to mouse support, hard disk type-47.Going to verify

from display memory.

(96)Memory size adjusted due to mouse support, hard disk type-47.Going to do any Init before C800 optical ROM control. Returned after verifying from display memory.

(96)Clear huge ES segment register.(Beep)=3-2-2-3. (97)Any Init before C800 optional ROM control is over. Optional ROM check &

Error Code - 91

Error Code - 92

Error Code - 93

Error Code - 94

Error Code - 95

Error Code - 97

ACER (98)#A shutdown. AMI

Chips & Tech (98)Adapters POS.

AMI Phoenix AMI Phoenix AMI

ACER AMI

Phoenix

(98)Optional ROM control is done. About to give control to do any required

failure.(Beep)=3-2-3-1. (99)Any initialization required after optional ROM test over. Going to setup timer

data area and printer base address. (99)Check for SMART Drive(optional).

(9A)Return after setting timer and printer base address. Going to set the RS-232 base address. (9A)Shadow option ROMS.(Beep)=3-2-3-3. Error Code - 9B

Co-Processor test.

(9C)Required initialization before co-Processor is over. Going to initialize the CoProcessor next. (9C)Set up Power Management.(Beep)=3-2-4-1. Error Code - 9D (9D)CoProcessor initialized. Going to do any initialization after CoProcessor test.

Error Code - 9A

Error Code - 9E

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Appendix A

(9E)Initialization after CoProcessor test is complete. Going to check expander keyboard, keyboard ID and number-lock. (9E)Enable hardware interrupts.(Beep)=3-2-4-3.

(9F)Extended keyboard check is done, ID flag set. num-lock on/off. Keyboard ID command to be issued. (9F)Determine number at ATA and SCSI drives.

(A0)Keyboard ID command issued. Keyboard ID flag to be reset. (A0)Start of diskette tests. (A0)Set time of day .(Beep)=3-3-1-1

(A1)Keyboard ID flag reset. Cache memory test to follow. (A1)FDC reset active (3F8H bit 2)

(A2)Cache memory test over. Going to display any soft errors. (A2)FDC reset inactive(3F8H bit 2) (A2)Check key lock.(Beep)=3-3-1-3

(A3)Soft error display complete. Going to set the keyboard type matric rate. (A3)FDC motoron.

(A4)Keyboard type matric rate set. Going to program memory wait states. (A4)FDC time-out error. (A4)Initialize Type matric rate.

(A5)Memory wait states programming over. Going to clear the screen and enable parity/NMI. (A5)FDC failed reset.

(A6)Screen cleared. Going to enable parity and NMI. (A6)FDC passed reset.

(A7)NMI and parity enabled. Going to do any Initialization required before giving control to optional ROM at E000.

(A8)Initialization before E000 ROM control over. E000 ROM to get control next. (A8)Start of determine drive type. (A8)Erase F2 prompt.(Beep)3-3-3-1

(A9)Returned from E000 ROM control. Going to do any init required after E000 optional ROM control. (A9)Seek operation initiated.

(AA)Initialization after E000 optional ROM control is over. Going to display the system configuration. (AA)Waiting for FDC status. (AA)Scan for F2 key stroke.(Beep)=3-3-3-3

(AC)Enter SETUP.(Beep)=3-3-4-1 (AE)Clear in-POST flag.(Beep)=3-3-4-3.Clear Boot fag. (AF)diskette tests complete.

(B0)System configuration is displayed. Going to un-com- press SETUP code for hot-key setup. (B0)Spurious interrupt occurred in protect mode. Check mismatch memory. (B0)Start of fixed drive tests. (B0)Check for errors.(Beep)=3-4-1-1.Unknown interrupt occurred.

(B1)un-compressing of SETUP code is complete. Going to copy any code to specific area. (B1)If unmasked NMI occurs, Press F1 to disable NMI,F2 to boot. (B1)Combo board not found, exit.

(B2)Combo controller failed, exit. (B2)POST done-prepare to boot operating system.(Beep)=3- 4-1-3 (B3)Testing drive 1. (B4)Testing drive 2. (B4)One short beep before boot.(Beep)=3-4-3-1

Error Code - 9F

Error Code - A0

Error Code - A1

Error Code - A2

Error Code - A3

Error Code - A4

Error Code - A5

Error Code - A6

Error Code - A7

Error Code - A8

Error Code - A9

Error Code - AA

Error Code - AB-AF

Error Code - B0

Error Code - B1

Error Code - B2-B5

Appendix A

Award

(C0)Turn off chipset cache; OEM Specific

cache control.

Award

SIMM.

Award

jumper Setting). Also, Check Video memory

Compaq Phoenix

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Phoenix Award

Award Phoenix

Chips & Tech (C0)System board memory failure. Phoenix

Chips & Tech (C1)I/O channel activated. Phoenix AMI Phoenix AMI Award

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(B5)Drive error(error condition). (B5)terminate Quiet-Boot(optional)

(B6)Drive failed(failed to respond). (B6)Check password(optional).(Beep)=3-4-2-3

(B7)CMOS RAM invalid or no fixed drives, exit. (B8)Fixed drive tests complete. (B8)Clear global descriptor table.(Beep)=3-4-3-4 (B9)Attempt to boot diskette. (B9)Prepare boot. (BA)Attempt to boot fixed drive. (BA)Initialize DMI parameters. (BB)Boot attempt failed(diskette or fixed). (BB)Initialize PnP option ROMs. (BC)Boot record read, jump to boot record. (BC)Clear parity checkers.(Beep)=3-4-4-1 (BD)Drive error, retry booting. (BD)Display Multi-Boot menu.

(BE)Program defaults values into chipset.(BE)Chipset default initialization; Program chipset registers with power on BIOS defaults. (BE)Weitck CoProcessor test. (BE)Clear screen(optional).(Beep)=3-4-4-3

(BF)Program the rest of the chipset (BF)Chipset initialization; Program chipset registers with setup values. (BF)Check virus and backup reminders.(Beep)=3-4-4-4

(C0)Try to boot with INT 19.(Beep)=4-1-1-1 (C1)Memory presence test; OEM specific-test to size on- board memory. Bad

(C1)Initialize POST Error Manager(PEM). (C2)NMI is Disable. Power on delay start on. (C2)Initialize error logging. (C3)Check memory(Cache, Video or first 64K) (C3)DRAM Select page, Check BIOS setting and first SIMM, Possible address line failure. (C3)Initialize error display function. (C4)CMOS conflicts, check video switch, BIOS(Chipset) on the video not initializing. (C4)initialize system error handler.

(C5)Power on delay complete. Going to enable ROM i.c. disable Cache if any. (C5)Early shadow; OEM Specific-Early shadow enable for fast boot. (C5)PnPnd dual CMOS(optional)

(C6)Calculating ROM BIOS checksum. (C6)Cache presence test; External cache size detection. (Check Memory first 64K.Check CPU

(C6)Initialize notebook docking (optional). (C7)ROM BIOS checksum passed. CMOS shutdown register test to be done next. (C7)Shadow

video/system BIOS after memory pass. (C7)Initialize notebook docking late.

(C8)CMOS Shutdown register test done. CMOS checksum calculation to be done next. (C8)CMOS Shutdown, time delay. (C8)Force check(optional) (C9)Extended checksum(optional)

(CA)CMOS checksum calculation is done, CMOS Drag byte written. CMOS status register about to initializing for Date and Time. (CA)Micronics cache initialization.

Error Code - B6

Error Code - B7-BD

Error Code - BE

Error Code - BF

Error Code - C0

Error Code - C1,C2,C3,C4

Error Code - C5

Error Code - C6

Error Code - C7

Error Code - C8,C9

Error Code - CA,CB,CC

Phoenix

not found. Boot system.

Award

AMI Award AMI

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Compaq Phoenix AMI

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Phoenix Phoenix

(CB)CMOS status register Init done. Any initialization before keyboard BAT to be done next. (CC)NMI handler shutdown.

(CD)BAT command to keyboard controller is to be issued. (CE)Keyboard controller BAT result verified. Any initialization after KB controller. (CF)Initialization after KB controller BAT done. Keyboard command byte to be written next.

(D0)Entry to clear memory routine. (D0)Interrupt handler error.(Beep)=4-2-1-1 (D1)Keyboard controller command byte is written. Going to check pressing of <INS> key during power-on. (D1)Ready to go to protected mode. (D2)Checking for pressing of <INS>key during power-on done. Going to disable DMA and Interrupt controllers. (D2)Ready to clear extended memory. (D2)Unknown interrupt error.(Beep)=4-2-1-3 (D3)DMA controller #1,#2,interrupt controller #1,#2 disable. Video display is disable and port-B is initialized. Chipset initialize/auto memory detection about to begin. (D3)Ready to reset back to real mode. (D4)Chipset Initialization/auto memory detection about to begin. Check SIMM for mismatch. (D4)Back in real mode-ready to clear real mode. (D4)Pending interrupt error.(Beep)=4-2-2-1 (D5)RUNTIME code is un-compressed. (D6)Initialize option ROM error.(Beep)4-2-2-3.Shutdown error.(Beep)=4-2-3-1.(DA)Extended Block Move.(Beep)=4 -2-3-3.(DC)Shutdown 10 error(Beep)=4-2-4-1 (DD)Transfer control to un-compressed code in shadow ram at F000:FFF0. (E0)Ready to replace E000 ROM. (E0)Initialize the chipset.

(E1)Completed E000 ROM replacement. (E1)Initialize the bridge. (E2)Ready to replace EGA ROM. (E2)Initialize the motherboard chipset, and CPU.(Beep)=4-3 -1-3

(E3)Completed EGA ROM replacement. (E3)Initialize refresh counter and system timer(Beep)=4-3- 1 -4

(E4)Check for forced Flash or initialize system I/O.(Beep)= 4-3-2.(E5)Check HW status of ROM or check force recovery boot.(Beep)4-3-2-2. (E6) BIOS ROM is OK. (Beep) =4-3-2-3. (E7) Do a complete RAM Test or go to BIOS. (Beep)=4-3-2-4. (E8)Do OEM initialization or set huge segment. (Beep)=4-3-3-1. (E9) Initialize interrupt controller or initialize multi processor. (Beep)=4-3-3-2. (EA)Read in bootstrap code or initialize OEM special code. (Beep)=4-3 -3-3. (EB) Initialize all vectors or initialize PIC and DMA. (Beep)=4-3-3-4. (EC) Boot the Flash program or initialize memory type. (Beep)=4-3-4-1. (ED) Initialize the boot device or initialize memory size. (Beep)=4-3-4-2

(EE)Unexpected Processor exception. (EE)Boot code was read OK or shadow boot block.(Beep)= 4-3-4-3

(F0)Initialize interrupt vectors.(F1)Initialize Run Time Clock. (F2) Initialize video. (F3)Initialize System Management Mode.(F4)Output one beep before DOS.(F5)Boot to Mini DOS.(F6)Clear Huge Segment.(F7)Boot to Full DOS.

(FF)System booting. This means that the BIOS already passed control to the operation system. If no error flags such as memory size are set ,boot via INT 19-load system from drive A, then C; display error message if correct boot device

Error Code - CD-CF

Error Code - D0-DC

Error Code - E1,E2

Error Code - E3

Error Code - E4-EC

Error Code - EE

Error Code - F0-F7

Error Code - FF

Appendix A

Compaq Mega-Post User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual