0 Code copying to specific areas is done/Passing control to INT 19h boot loader next.
3 Disable NMI, PIE, AIE, UEI, SQThe NMI is disabled. Next, checking for a soft reset or a power on condition
5 The BIOS stack has been built. Next, disabling cache mamory.
6 Uncompressing the POST code next.
7 Next, initializing the CPU data area
8 The CMOS checksum calculation is
10 Test DMA The keyboard controller command byte is written. Next, issuing the Pin 23 and 24 Blocking and unblocking command
11 Next, checking if «End» or «Ins» keys were pressed during power on. Initializing CMOS RAM in every boot AMIBIOS POST option was set in AMIBCP or the «End» key was pressed
12 Next, disabling DMA controllers 1 and 2 and interrupt controllers 1 and 2
13 The video display has been disabled. Port B has been initialized. Next, initializing the chipset
14 The 8254 timer test will begin next
23 Reading the 8042 input port and disabling the MEGAKEY Green PC feature next. Making the BIOS code segment writable and performing any necessary configuration before initializing the interrupt vectors
24 The configuration required before interrupt vector initialization has completed. Interrupt vector initialization is about to begin
25 Interrupt vector initialization is done. Clearing the password if the POST DIAG awitch is on
26 1. read/write input, output port of 8042 keyboard; ready for revolve mode, continue to get ready for initialization of all data, check the 8042 chips on mainboard.
27 Any initialization before setting the video mode will be done next
28 Initialization before setting the video mode is complete. Configuring the monochrome mode and color mode settings next
30 The display memory read/write test passed. Look for retrace checking next
31 The display memory read/write test or retrace checking failed. Performing the alternate display memory read/write test next
32 The alternate display memory read/write test passed. Looking for alternate display retrace checking next
34 Video display checking is over. Setting the display mode next
37 The display mode is set. Displaying the power on message next
38 Initializing the bus input, IPL, general device next, if present
39 Displaying bus initialization error messages
40 Preparing the descriptor tables next
42 The descriptor tables are prepared. Enteling protected mode for the memory test next
43 Entered protected mode. Enabling interrupts for diagnostics mode next
44 Interrupts enabled if the diagnostics switch is on. Initializing data to check memory wraparound at 0:0 next
45 Data initialized. Checking for memory wraparound at 0: 0 and finding the total system memory size next
46 The memory wraparound test is done. Memory size calculation has been done. Writing patterns to tset memory next
47 The memory pattern has been to extended memory. Writing patterns to the base 640 KB memory
48 Patterns written in base memory. Determining the amount of memory below 1MB next
49 The amount of memory below 1MB has been found and verified. Determining the amount of memory above 1 MB memory next
50 The memory below 1MB has been tested and initialized. Adjusting the displayed memory size fot relocation and shadowing next
51 The memory size display was adjusted for relocation and shadowing. Testing the memory above 1MB next
52 The memory above 1MB has been tested and initialized. Saving the memory size information next
53 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 A20 line, parity, and the NMI next
57 The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending on relocation and shadowing next
58 The memory size was adjusted for relocation and shadowing. Clearing the Hit «DEL» message next
59 The Hit «DEL» message is cleared. The «WAIT...» message is displayed. Starting the DMA and interrupt controller test next
60 The DMA page register test passed. Performing the DMA Controller 1 base register test next
62 The DMA controller 1 base register test passed. Performing the DMA controller 2 base register test next
65 The DMA controller 2 base register test passed. Programming DMA controller 1 and 2 next
66 Completed programming DMA controllers 1 and 2 initializing the 8259 interrupt controller next
67 Completed 8259 interrupt controller initialization
80 The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing the keyboard reset command next
81 A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test command next
82 The keyboard controller interface test completed. Writing the command byte and initializing the circular buffer next
83 The command byte was written and global data initialization has completed. Checking for a locked key next
84 Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data next
85 The memory size check is done. Displaying a soft error and checking for a password or bypassing WINBIOS Setup next
86 The password was checked. Performing any required programming before WINBIOS Setup next
87 The programming before WINBIOS Setup has completed Uncompressing the WINBIOS Setup code and executing the AMIBIOS Setup or WINBIOS Setup utility next
88 Returned from WINBIOS Setup end cleared the screen. Performing any necessary programming after WINBIOS Setup next
89 The programming after WINBIOS Setup has completed. Displaying the power on screen message next
91 The floppy drive controller has been configured. Cjnfiguring the hard disk drive controller next
95 Initializing bus adaptor ROMs from C8000h through D8000
96 Initializing before passing control to the adaptor ROM at C800
97 Initialation before the C800 adaptor ROM gains control has completed. The adaptor ROM check is next
98 The adaptor ROM had control and now returned control to BIOS POST. Performing any required processing after the option ROM returned controlA
99 Any initialization required after the option ROM test has completed. Configuring the timer data area and printer base address next
0A The CMOS checksum calculation is done. Linitializing the CMOS status register for date and time next
0B The CMOS status register is initialized. Next. Performing any requirect initialization before the keyboard BAT command is issued
0C The keyboard controller input butter is free Next, issuing the BAT command to the keyboard controller
0E The keyboard controller BAT command result has been verified. Next, performing any necessary initialization after the keyboard controller BAT command test
0F The initialization after the keyboard controller BAT command test is done. The keyboard command byte is written next
1A The memory refresh line is toggling. Checking the 15 second on/off time next
2A Initializing the different bus system, static, and output devices, if present
2B Passing control to the video ROM to perform any required configuration before the video ROM test
2C All necessary processing before passing control to the video ROM is done. Looking for the video ROM next and passing control to it
2D The video ROM has returned has returned control to BIOS POST Performing any required processing after the video ROM had control
2E Completed pest-video ROM test processing. If the EGA/VGA controller is not found, performing the display memory Read/write test next
2F The EGA/VGA controller was not found. The display memory read/write test is about to begin
3A The new cursor position has been read and saved. Displaying the Hit «Del» message next
3B The Hit «Del» message is displayed. The protected mode memory test is about to start
4B The amount of memory above 1MB has been found and verified. Checking for a soft reset and clearing the memory below 1MB for the soft reset next. If this is a power on situation, going to checkpoint 4Eh next
4C The memory below 1MB has been cleared via a soft reset. Clearing the memory above 1MB next
4D The memory above 1MB has been cleared via a soft reset. Saving the memory size next. Going to checkpoint 52h next
4E The memory test started, but not as the result of a soft reset. Displaying the first 64KB memory size next
4F The memory size display has started. The display is updated during the memory test. Performing the sequential and random memory test next
7F Extended NMI source enabling is in progress
8B The first screen message has been displayed. The «WAIT...» message is displayed. Performing the PS/2 mouse check and extended BIOS data area allocation check next
8C Programming the WINBIOS Setup options next
8D The WINBIOS Setup options are programmed. Resetting the hard disk controller next
8E The hard disk controller has been reset. Configuring the floppy drive controller next
9A Set the timer and printer base address. Setting the RS-232 base address next
9B Returned after setting the RS-232 base address. Performing any required initialization before the coprocessor test next
9C Required initialization before the Coprocessor test is over. Initializing the Coprocessor next
9D Coprocessor initialized Performing any required initialization after the Coprocessor test next
9E Initialization after the Coprocessor test is complete. Checking the extended keyboard, keyboard ID, and NumLock key next. Issuing the keyboard ID command next
A2 Displaying any soft error next
A3 The soft error display has completed. Setting the keyboard typematic rate next
A4 The keyboard typematic rate is set. Programming the memory wait states next
A5 Memory wait state programming is over. Clearning the screen and enabling parity and the NMI next
A7 NMI and parity enabled. Performing any initialization required before passing control to the adaptor ROM at E000 next
A8 Initialization before passing control to the adaptor ROM at E000h completed. Passing control to the adaptor ROM at E000h next
A9 Returned from adaptor ROM at E000h control. Performing any initialization required after the E000 option ROM had control next
AA Initialization after E000 option ROM control has completed. Displaying the system configuration next
AB Uncompressing the DMI data and executing DMI POST initialization next
B0 The system configuration is displayed
B1 Copying any code to specific areas
D0 The NMI is disable. Power on delay is starting. Next, the initialization code checksum will be verified
D1 Initializing the DMA controller, performing the keyboard controller BAT test, starting memory refresh, and entering 4GB flat mode next
D3 Starting memory sizing next
D4 Returning to real mode. Executing any OEM patches and setting the stack next
D5 Passing control to the uncompressed code in shadow RAM at E000: 0000h. The initialization code is copied to segment 0 and control will be transferred to segment 0
D6 Control is in segment 0 Next, checking if «Ctrl» «Home» was pressed and verifying the system BIOS checksum. If either «Ctrl» «Home» was pressed or the system BIOS checksum is bad, next will go to checkpoint code E0h. Otherwise, going to checkpoint code D7h
E0 The onboard floppy controller if available is initialized. Next, beginning the base 512 KB memory test
E1 Initializing the interrupt vector table next
E2 Initializing the DMA and interrupt controllers next
E6 Enabling the floppy drive controller and Timer IRQs. Enabling internal cach memory
ED Initializing the floppy drive
EE Looking for a floppy diskette in drive A: Reading the first sector of the diskette
EF A read error occurred while reading the floppy drive in drive A:
F0 Next, searching for the AMIBOOT.ROM file in the root directory
F1 The AMIBOOT.ROM file is not in the root directory
F2 Next, reading and analyzing the floppy diskette FAT to find the clusters occupied by the AMIBOOT.ROM file
F3 Next, reading the AMIBOOT.ROM file, cluster by cluster
F4 The AMIBOOT.ROM file is not the correct size
F5 Next, disabling internal cach memory
FB Next, detecting the type of flash ROM
FC Next, erasing the flash ROM
FD Next, programming the flash ROM
FF Flash ROM programming was successful. Next, restarting the system BIOS
2. refere to the left