AWARD Test Sequence up to Version 4.2
 CPU   BIOS sets, verifies and resets the error flags in the CPU.  Failure here is normally due to the CPU or system clock 
 POST Determination   BIOS determines whether the motherboard is set for normal operation or a continuous loop of POST.  If the POST test is cycled 1-5 times over and over either the jumper for this function is set to burn=in or the circuitry involved has failed 
 Keyboard Controller   BIOS tests the internal operations of the keyboard controller chip (8042).   Failure here is normally due to the keyboard chip 
 Burn In Status   1-5 will repeat if the motherboard is set to burn in.  If you haven't set the motherboard for burn-in mode, there is a short in the circuitry 
 Initialize Chipset   BIOS clears all DMA registers and CMOS status bytes 0E and 0F.  BIOS then initializes 8254 timer,  Failure of this test is probably due to the timer chip 
 CPU   A bit-pattern is used to verify the functioning of the CPU registers.  Failure here is normally down to the CPU or clock chip 
 RTC   BIOS verifies that the real time clock is updating CMOS at normal intervals.  Failure is normally the CMOS/RTC or the battery 
 ROM BIOS Checksum   BIOS performs a checksum of itself against a predetermined value that will equal 00.  Failure is down to the ROM BIOS 
 Initialize Video   BIOS tests and initializes the video controller.  Failure is normally the video controller (6845) or an improper setting of the motherboard or CMOS 
 PIT   BIOS tests the functionality of channels 0, 1, and 2 in sequence.  Failure is normally the PIT chip (8254/53) 
 CMOS Status   Walking bit pattern tests CMOS shutdown status byte 0F.  Failure normally in CMOS 
 Extended CMOS   BIOS checks for any extended information of the chipset and stores it in the extended RAM area.  Failure is normally due to invalid information and can be corrected by setting CMOS defaults.  Further failure indicates either the chipset or the CMOS RAM 
 DMA   Channels 0 and 1 are tested together with the page registers of the DMA controller chip (8237).  Failure is normally due to the DMA chips 
 Keyboard   The 8042 keyboard controller is tested for functionality and for proper interfacing functions.  Failure is normally due to the 8042 chip 
 Refresh   Memory refresh is tested; the standard with walking - bit patterns.  Failure is normally the PIT chip in AT's or the DMA chip in AT's 
 Memory   The first 64K of memory is tested with walking bit patterns.  Failure is normally due to the first bank of ram or a data line 
 Interrupt Vectors   The BIOS interrupt vectors table is loaded to the first bank of RAM.  Failure here is not likely since memory in the area has been tested.  If failure does occur suspect the BIOS or RTC 
 Video ROM   Video ROM is initialized which performs an internal diagnostic before returning control to the system BIOS.  Failure is normally the video adapter or the BIOS 
 Video Memory   This is tested with a bit pattern.   This is bypassed if there is a ROM on the video adapter.  Failure is normally down to the memory on the adapter 
 PIC   The functionality of the interrupt controller chip(s) is tested (8259).  Failure is normally due to the 8259 chips but may be the clock 
 CMOS Battery   BIOS verifies that CMOS byte 0D is set which indicates the CMOS battery power.  Suspect the battery first and the CMOS second 
 CMOS Checksum   A checksum is performed on the CMOS.   Failure is either incorrect setup, the CMOS chip or battery.  If the test is passed, the information is used to configure the system 
 Determine System Memory   Memory up to 640K is addressed in 64K blocks.  Failure is normally due to an address line or DMA chip.  If all the memory is not found there is a bad RAM chip or address line in the 64K block above the amount found 
 Memory Test   Tests are performed on any memory found and there will normally be a message with the hex address of any failing bit displayed at the end of boot 
 PIC   Further testing is done on the 8259 chips 
 CPU Protected Mode   The processor is placed in protected mode and back into real mode; the 8042 is used for this.  In case of failure suspect the 8042, CPU, CMOS, or the BIOS in that order 
 Determine Extended Memory   Memory above 1MB is addressed in 64K blocks.  The entire block will be inactive if there is a bad RAM chip on a block 
 Test Extended Memory   Extended memory is tested with a series of patterns.  Failure is normally down to a RAM chip, and the hex address of the failed bit should be displayed 
 Unexpected Exceptions   BIOS checks for unexpected exceptions in protected mode.  Failure is likely to be a TSR or intermittent RAM failure 
 Shadow Cache   Shadow RAM and cache are activated.   Failure may be due to the cache controller or chips.  Check the CMOS first for invalid information 
 8242 Detection   BIOS checks for an Intel 8242 keyboard controller and initializes it if found.  Failure may be due to an improper jumper setting or the 8242 
 Initialize Keyboard   Failure could be the keyboard or controller 
 Initialize floppy   All those set in the CMOS.  Failure could be incorrect CMOS setup or floppy controller or the drive 
 Detect Serial Ports   BIOS searches for and initializes up to four serial ports at 3F8, 2F8, 3E8, and 2E8.  Detection failure is normally due to an incorrect jumper setting somewhere or an adapter failure 
 Detect Parallel Ports   BIOS searches for and initializes up to four parallel ports at 378, 278, 3BC, and 2BC.  Detection failure is normally due to an incorrect jumper setting somewhere or an adapter failure 
 Initialize Hard Drive   BIOS initializes any hard drive(s) set in the CMOS.  Failure could be due to invalid CMOS setup, hard drive or controller failure 
 Detect NPU Coprocessor   Initialization of any NPU coprocessor found.  failure is due either to invalid CMOS setup or the NPU is failing 
 Initialize Adapter ROM   Any Adapter ROM's between C800 and EFFF are initialized.  The ROM will do an internal test before giving back control to the system ROM.  Failure is normally due to the adapter ROM or the attached hardware 
 Initialize External Cache   Any external cache to the 486 is enabled.  Failure would indicates invalid CMOS setup, cache controller or chip failure 
 NMI Unexpected Exceptions   A final check for unexpected exceptions before giving control to the Int 19 boot loader.  Failure is normally due to a memory parity error or an adapter failure 
 Boot Errors   Failure when the BIOS attempts to boot off the default drive set in CMOS is normally due to invalid CMOS drive setup or as given by an error message.  If the system hangs there is an error in the Master Boot Record or the Volume Boot Record 
AWARD Test Sequence after version 4.2
 CPU   BIOS sets, verifies and resets the error flags in the CPU then performs a register test by writing and reading bit patterns.   Failure is normally due to the CPU or clock chip 
 Initialize Support Chips   Video is disabled as is parity, DMA and NMI.  Then the PIT, PIC, and DMA chips are initialized.  Failure is normally the DMA or PIT chips 
 Initialize Keyboard   Keyboard and controller are initialized 
 ROM BIOS Test   A checksum is performed by the ROM BIOS on the data within itself and is compared to a preset value of 00.  Failure is normally due tot he ROM BIOS 
 CMOS Test   A test of the CMOS chip which should also detect a bad battery.  Failure is due to either the CMOS chip or the battery 
 Memory Test   First 356K of memory tested with any routines in the chipsets.  Failure is normally due to defective memory 
 Cache Initialization   Any external cache to the chipset in activated.  Failure is normally due to the cache controller or chips 
 Initialize Vector Table   Interrupt vectors are initialized and the interrupt table is installed into low memory.  Failure is normally due to the BIOS or low memory 
 CMOS RAM   CMOS RAM checksum tested and BIOS defaults loaded if invalid.  Failure would indicate CMOS RAM failure 
 Keyboard Initialization   Keyboard initialized and Num Lock set on.  Check the keyboard or controller is a failure occurs 
 Video Test   Video adapter tested and initialized 
 Video Memory   Tested for Mono and CGA adapters.   Failure could be the adapter card 
 DMA Test   DMA controllers and page registers are tested.  Failure could indicate bad DMA chips 
 PIC Tests   8259 PIC chips are tested.  Failure would indicate a bad PIC 
 EISA Mode Test   A checksum is performed on the extended data area of CMOS where EISA information is stored.  If passed the EISA adapter is initialized 
 Enable Slots   Slots 0-15 doe EISA adapters are enabled if the above test is passed 
 Memory Size   Memory addresses above 256K written in 64K blocks and addresses found are initialized.  If a bit is bad, the entire block containing it and those above will not be seen 
 Memory Test   Read and write tests are performed on memory above 256K.  Failure is due to bad bit in RAM 
 EISA Memory   Memory tests on any adapters initialize previously.  Check the memory chips if a failure occurs 
 Mouse Initialization   Checks for a mouse and installs the appropriate interrupt vectors if one is found.  Check the mouse adapter if a failure occurs 
 Cache Initialized   The cache controller is initialized if present 
 Shadow RAM Setup   Any Shadow RAM present according to the CMOS is enabled 
 Floppy Test   Test and initialize floppy controller and drive 
 Hard Drive Test   Test and initialize hard disk controller and drive.  You may have an improper setup or a bad controller/hard drive if a failure occurs 
 Serial and Parallel Ports   Amy serial and parallel ports are found and initialized 
 Math Coprocessor   The coprocessor is initialized if found.   Check the CMOS setup or the math coprocessor if a failure occurs 
 Boot Speed   Set the default speed at which the computer boots 
 POST Loop   Reboot occurs if the loop pin is set for manufacturing purposes 
 Security   Ask for a password if one has been set in the CMOS.  
 Write CMOS   The BIOS is waiting to write the CMOS values from Setup to CMOS RAM.  Failure is normally due to an invalid CMOS configuration 
 Pre-Boot   The BIOS is waiting to to write the CMOS values from Setup to CMOS RAM 
 Adapter ROM Initialization   Adapter ROM's between C800 and EFFF are Initialized.  The ROM will do an internal test before giving back control to the system ROM.  Failure is normally due to the adapter ROM or the adapter card 
 Setup Time   Set CMOS time to the value located at 40h of the BIOS data area 
 Boot System   Control is given to Int 19 boot loader 
AWARD BIOS Text Error Messages
 BIOS ROM checksum error - System halted   The checksum of the BIOS code in the BIOS chip is incorrect, indicating the BIOS code may have become corrupt.  Replace the BIOS 
 CMOS battery failed   CMOS battery is no longer functional.   Replace the battery 
 CMOS checksum error - Defaults loaded   Checksum of CMOS is incorrect, so the system loads the default values.  A checksum error may indicate that CMOS has become corrupt.  This error might have been caused by a weak battery 
 CMOS CHECKSUM ERROR DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER   Checksum of CMOS is incorrect.    This can indicate that CMOS has become corrupt.  This error may have been caused by a weak CMOS battery 
 CPU at nnn   Displays the running speed of the CPU 
 DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP   Type of diskette drive installed in the system is different from the CMOS definition.  Run Setup to reconfigure the drive type correctly 
 Display switch is set incorrectly   The display switch on the motherboard can be set to either monochrome or color.  This message indicates the switch is set to a different setting than indicated in Setup.  Determine which setting is correct and then either turn off the system and change the jumper or enter Setup and change the video selector 
 DISPLAY TYPE HAS CHANGED SINCE LAST BOOT   Since last powering off the system, the display adapter has been changed.  You must configure the system for the new display type 
 EISA Configuration Checksum Error   The EISA nonvolatile RAM checksum is incorrect or cannot correctly read the EISA slot.  This can indicate either the EISA nonvolatile memory has become corrupted or the slot has been configured incorrectly.   Also, be sure the card in installed firmly in the slot 
 EISA Configuration Is Not Complete   The slot configuration information stored in the EISA nonvolatile memory is incomplete 
 ERROR ENCOUNTERED INITIALIZING HARD DRIVE   Hard drive cannot be initialized.   Be sure the adapter is installed correctly and all cables are correctly and firmly attached.  Also be sure the correct hard drive type is selected in Setup 
 ERROR INITIALIZING HARD DISK CONTROLLER   Cannot initialize controller.  Make sure the card is correctly and firmly installed in the bus.  Be sure the correct hard drive type is installed in Setup.  Also check to see if any jumper needs to be set correctly on the hard drive 
 FLOPPY DISK CONTROLLER ERROR OR NO CONTROLLER PRESENT   Cannot find or initialize the floppy disk controller.  make sure the controller is installed correctly and firmly.   If there are no floppy drives installed, be sure the Diskette Drive selection in Setup is set to None 
 Floppy disk(s) fail   Cannot find or initialize the floppy drive controller or the drive.  make sure the controller is installed correctly.   If no floppy drives are installed, be sure the Diskette Drive selection in Setup is set to None or Auto 
 HARD DISK initializing    Please wait for a moment... Some hard drives require some extra time to initialize 
 HARD DISK INSTALL FAILURE   Cannot find or initialize the hard drive controller or the drive.  Make sure the controller is installed correctly.  If no hard drives are installed, be sure the Hard Drive selection in Setup is set to None 
 Hard disk(s) diagnosis fail   The system may run specific disk diagnostic routines.  this message appears if one or more hard disks return an error when the diagnostics run 
 Invalid EISA Configuration   The nonvolatile memory containing EISA configuration information was programmed incorrectly or has become corrupt.  Rerun EISA configuration utility to correctly program the memory 
 Keyboard error or no keyboard present   Cannot initialize the keyboard.   Make sure the keyboard is attached correctly and no keys are being pressed during the boot.  If you are purposely configuring the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD.  This will cause the BIOS to ignore the missing keyboard and continue the boot 
 Keyboard is locked out - Unlock the key   This message usually indicates that one or more keys have been pressed during the keyboard tests.  Be sure no objects are resting on the keyboard 
 Memory Address Error at...   Indicates a memory address error at a specific location.  You can use this location along with the memory map for your system to find and replace the bad memory chips 
 Memory parity Error at...   Indicates a memory parity error at a specific location.  You can use this location along with the memory map for your system to find and replace the bad memory chips. 
 MEMORY SIZE HAS CHANGED SINCE LAST BOOT   Memory has been added or removed since the last boot.  In EISA mode, use configuration utility to reconfigure the memory configuration.  In ISA mode,enter Setup and enter the new memory size in the memory field 
 Memory Test   The message displays during a full memory test, counting down the memory areas being tested 
 Memory Test Fail   If POST detects an error during memory testing, additional information appears giving specifics about the type and location of the memory error 
 Memory Verify Error at...   Indicates an error verifying a value already written to memory.  Use the location along with your system's memory map to locate the bad chip 
 No boot device was found   This could mean that either a boot device was not detected or the drive does not contain proper system boot files.   Insert a system disk into drive A: and press Enter.  If you assumed the system would boot from the hard drive, make sure the controller is inserted correctly and all cables are properly attached.  Also be sure the disk is formatted as a boot device.   Then reboot the system 
 OFFENDING ADDRESS NOT FOUND   The message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem cannot be isolated 
 OFFENDING SEGMENT:   This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem has been isolated 
 Override enabled - Defaults loaded   If the system cannot boot using the current CMOS configuration, the BIOS can override the current configuration with a set of BIOS defaults designed for the most stable, minimal-performance system operations 
 PRESS A KEY TO REBOOT   This will be displayed at the bottom of the screen when an error occurs that requires you to reboot.  Press any key to reboot the system 
 Press ESC to skip memory test   You can press ESC to skip the full memory test 
 PRESS F1 TO DISABLE NMI, F2 TO REBOOT   When BIOS detects a non-maskable interrupt condition during boot, this will allow you to disable the NMI and continue to boot; or you can reboot the system with the NMI enabled 
 Press TAB to show POST screen   System OEM's may replace the Award BIOS POST display with their own proprietary display.  Including this message in the OEM display permits the operator to switch between the OEM display 
 Primary master hard disk fail   POST detects an error in the primary master IDE hard drive 
 Primary slave hard disk fail   POST detects an error in the secondary master IDE hard drive 
 RAM PARITY ERROR - CHECKING FOR SEGMENT...   Indicates a parity error in RAM 
 Resuming from disk, Press TAB to show POST screen   Award offers a save-a-disk feature for notebook computers.  This message may appear when the operator restarts the system after a save-to-disk shutdown.  See the Press Tab...message earlier for a description of this feature 
 Secondary master hard disk fail   POST detects an error in the secondary master IDE hard drive 
 Secondary slave hard disk fail   POST detects an error in the secondary slave IDE hard drive 
 Should Be Empty But EISA Board Found   A valid board ID was found in a slot that was configured as having no board ID 
 Should Have EISA Board But Not Found   The board installed is not responding to the ID request, or no board ID has been found in the indicated slot 
 Slot Not Empty   Indicates that a slot designated as empty by the EISA configuration utility actually contains a board 
 SYSTEM HALTED. (CTRL-ALT-DEL) TO REBOOT...   Indicates the present boot attempt has been aborted and the system must be rebooted.  Press and hold down the Ctrl and Alt keys and press Del 
 Wrong Board In Slot   The board ID does not match the ID stored in the EISA nonvolatile memory 
AWARD BIOS (Original XT)
 03   Flag resister test 
 06   CPU register test 
 09   System hardware initialization 
 0C   BIOS checksum 
 0F   DMA page register initialization 
 12   Test DMA address and count registers 
 15   DMA initialization 
 18   Timer test 
 1B   Timer initialization 
 1E   Start RAM initialization 
 21   Test base 64K of RAM 
 24   Setup init. and temp stack 
 27   Initialize PIC 
 2A   Interrupt mask register test 
 2D   Hot interrupt test 
 30   V40 DMA if present 
 33   Verify system clock initialization 
 36   Keyboard test 
 39   Setup interrupt table 
 3C   Read system configuration switches 
 3F   Video test 
 42   Serial port determination 
 45   Parallel port determination 
 48   Game port determination 
 4B   Copyright message display 
 4E   Calculation of CPU speed 
 54   Test of system memory 
 55   Floppy drive test 
 57   System initialized before boot 
 5A   Call to Int 19 
AWARD XT Version 3.1 BIOS
 01   Processor test fail; Processor status verification #1 
 02   Type of POST/keyboard buffer; Failed if the keyboard interface buffer is filled with data 
 06   Initialize 6845 video controller, 8237 DMA controller, 8259 PIC, 8253 timer channel channel 1 initialized; Reset math coprocessor; Disable color and mono video, parity circuits and DMA chips; Clear DMA chips and page registers 
 07   Process registers except SS, SP, BP with data patterns 00 and FF; Processor status verification #2 
 09   ROM checksum for 32K tested 
 0A   Initialize the 6845 video controller 
 15   Test first 64K of system memory 
 16   Set up interrupt table in first 64K 
 17   Set up video I/O operations 
 18   Test video memory 
 19   8259 mask bits-channel 1 
 1A   8259 mask bits-channel 2 
 1D   Setup configuration byte from CMOS 
 1E   Size memory and compare with CMOS 
 1F   Test base memory; Test found system memory 
 20   Test stuck 8259's Interrupt bits 
 21   Test stuck NMI parity I/O bits 
 22   8259 Interrupt functionality tested 
 2A   Keyboard initialized 
 2B   Floppy dive controller and drive initialized 
 2C   Initialize COM ports 
 2D   Initialize LPT ports 
 2F   Initialize math coprocessor 
 31   Initialize option ROM's 
 FF   Int. 19 boot attempt 
AWARD Version 3.3 BIOS
 Keyboard controller 8042 tested 
 06   On-board LSI initialized 
 07   CPU flags tested 
 08   Calculate CMOS checksum 
 09   Initialize the 8254 PIT 
 0A   8254 PIC tested 
 0B   DMA controller tested 
 0C   8259 PIC initialized 
 0D   8259 PIC tested 
 0E   ROM BIOS checksum tested 
 0F   Extended CMOS tested 
 10   8259 PIC tested 
 11   8259 PIC tested 
 12   8259 PIC tested 
 13   8259 PIC tested 
 14   8259 PIC tested 
 15   First 64K RAM tested 
 16   Interrupt vector tables initialized 
 17   Video initialization 
 18   Video memory tested 
 19   Interrupt line mask 8259 PIC tested 
 1A   Interrupt line mask 8259 PIC tested 
 1B   Battery good 
 1C   CMOS checksum verified 
 1D   CMOS chip/RTC verified 
 1E   Memory size checked 
 1F   Memory verified 
 20   DMA initialized 
 21   PIC initialized 
 22   PIT initialized 
 24   Extended memory size checked 
 25   Extended memory tested 
 26   Protected mode entered 
 27   Shadow RAM, cache controller initialized 
 28   Shadow RAM, cache controller tested 
 29   Reserved 
 2A   Initialize keyboard 
 2B   Floppy drive initialization 
 2C   Serial port initialization 
 2D   Parallel port initialization 
 2E   Hard disk initialization 
 2F   Math coprocessor 
 30   Reserved 
 31   Optional ROM's checked for 
 FF   Boot from Int 19 
 01   CPU flags 
 02   CPU registers 
 03   Initialize DMA, PIC, PIT 
 04   Memory refresh 
 05   Keyboard initialization 
 06   ROM checksum 
 07   CMOS, battery 
 08   256K memory 
 09   Cache 
 0A   Set Interrupt table 
 0B   CMOS checksum 
 0C   Keyboard initialization 
 0D   Video adapter 
 0E   Video memory 
 0F   DMA channel 0 
 10   DMA channel 1 
 11   DMA page register 
 14   Timer chip 
 15   PIC controller 1 
 16   PIC controller 0 
 17   PIC stuck bits 
 18   PIC maskable IRQ's 
 19   NMI bit check 
 20   Slot 0 
 21   Slot 1 
 22   Slot 2 
 23   Slot 3 
 24   Slot 4 
 25   Slot 5 
 26   Slot 6 
 27   Slot 7 
 28   Slot 8 
 29   Slot 9 
 2A   Slot 10 
 2B   Slot 11 
 2C   Slot 12 
 2D   Slot 13 
 2E   Slot 14 
 2F   Slot 15 
 30   Memory size 256K 
 31   Memory test over 256K 
 32   EISA memory 
 3C   CMOS setup 
 3D   Mouse/adapter, CMOS 
 3E   Cache RAM 
 3F   Shadow RAM 
 41   Floppy drive 
 42   Hard drive 
 43   RS232 parallel 
 45   NPU 
 47   Speed 
 4E   Manufacturing loop 
 4F   Security 
 50   CMOS update 
 51   Enable NMI, cache 
 52   Adapter ROM's 
 53   Set time 
 60   Virus protection setup 
 61   Boot speed 
 62   Numlock setup 
 63   Boot 
 B0   NMI in protected 
 B1   Disable NMI 
 BE   Chipset default initialization 
 BF   Chipset program 
 C0   Cache on/off 
 C1   Memory size 
 C2   Base 256K test 
 C3   DRAM page select 
 C4   Video switch 
 C5   Shadow RAM 
 C6   Cache program 
 C8   Speed switch 
 C9   Shadow RAM 
 CA   OEM chipset 
 FF   Boot 
 01   CPU flags tested; Processor test #1 
 02   CPU registers tested; Processor test #2; Verify all CPU registers except SS, SP, BP with data patterns 00 and FF 
 03   Initialize DMA, PIC, PIT; Calculate BIOS EPROM and sign on message checksum (fail if not 0) 
 04   Memory refresh initialized; Test CMOS RAM interface 
 05   Keyboard initialization; Initialize NMI, PIE, AIE, UEI, SQWV; Disable video, parity checking and DMA; Math coprocessor reset; Clear all page registers and CMOS RAM shutdown byte; Initialize timers 0, 1, 2 and set EISA timer to a known state; Initialize DMA controllers 0 and 1; Initialize interrupt controllers 0 and 1; Initialize EISA extended registers 
 06   ROM checksum; Memory refresh tested 
 07   Low memory setup; Initialize chipset and test the presence of memory; OEM chipset initialization; Lower 256K of memory cleared; Enable parity checking and test parity in lower 256K memory 
 08   Setup Interrupt vector table; Initialize the first 120 Interrupt vectors with SPURIOUS_INT_HDLR and initialize INT 00-1F according to INT_TBL 
 09   Cache; CMOS checksum tested 
 0A   Set interrupt table; Initialize keyboard; Detect keyboard controller 
 0B   CMOS checksum; Video interface initialized 
 0C   Keyboard initialization; Video memory tested 
 0D   Video adapter initialized; OEM specific initializations 
 0E   Reserved 
 0F   DMA channel 0 tested with AA, 55, FF, 00 bit patterns 
 10   DMA channel 1 tested with AA, 55, FF, 00 bit patterns 
 11   DMA page register tested 
 12   Reserved 
 13   Reserved 
 14   Timer chip 8254 PIT timer 0 counter 2 tested 
 15   Verify 8259 PIC channel 1 
 16   Verify 8259 PIC channel 2 
 17   8259 PIC stuck bits tested; Turn Interrupt bits off and verify  no Interrupt mask register is on 
 18   8259 PIC maskable IRQ's tested 
 19   NMI bit check tested and parity I/O checked 
 1A   Reserved 
 1B   Reserved 
 1C   Reserved 
 1D   Reserved 
 1E   Reserved 
 1F   CMOS XRAM checked for 
 20   Slot 0 EISA initialized and enabled 
 21   Slot 1 EISA initialized and enabled 
 22   Slot 2 EISA initialized and enabled 
 23   Slot 3 EISA initialized and enabled 
 24   Slot 4 EISA initialized and enabled 
 25   Slot 5 EISA initialized and enabled 
 26   Slot 6 EISA initialized and enabled 
 27   Slot 7 EISA initialized and enabled 
 28   Slot 8 EISA initialized and enabled 
 29   Slot 9 EISA initialized and enabled 
 2A   Slot 10 EISA initialized and enabled 
 2B   Slot 11 EISA initialized and enabled 
 2C   Slot 12 EISA initialized and enabled 
 2D   Slot 13 EISA initialized and enabled 
 2E   Slot 14 EISA initialized and enabled 
 2F   Slot 15 EISA initialized and enabled 
 30   Memory size below 256K 
 31   Memory test over 256K 
 32   EISA memory tested found during slot initialization 
 3C   CMOS setup; Enter protected mode 
 3D   Mouse/adapter, CMOS 
 3E   Cache RAM 
 3F   Shadow RAM 
 41   Initialize floppy drive 
 42   Initialize hard drive 
 43   RS232 parallel 
 45   NPU 
 47   Speed for boot set 
 4E   Manufacturing loop; display any soft errors 
 4F   Security; ask for password if security is enabled 
 50   CMOS update 
 51   Enable NMI, cache memory 
 52   Adapter ROM's from C8000h to EFFFFH or F7FFFh initialized 
 53   Set time value for address 40 of BIOS 
 60   Virus protection setup 
 61   Boot speed 
 62   Numlock setup 
 63   Boot from Int 19 
 B0   NMI in protected 
 B1   Disable NMI 
 BE   Chipset default initialization 
 BF   Chipset program; initialization of system specific chipsets 
 C0   Cache on/off 
 C1   Memory size checked 
 C2   Base 256K tested 
 C3   DRAM page select tested 
 C4   Video switch 
 C5   Shadow RAM tested 
 C6   Cache program; configure cache memory 
 C8   Speed switch 
 C9   Shadow RAM tested 
 CA   OEM chipset initialized 
 FF   Boot from Int 19 
 01   Reserved 
 02   Reserved 
 03   Initialize EISA registers (EISA BIOS only) 
 04   Reserved 
 05   Keyboard controller self-tested 
 06   Reserved 
 07   Verify CMOS Read/Write 
 09   OEM specific initialization; Configure Cyrix CPU register 
 0A   Issue CPU ID instruction; Initialize the first 32 interrupt vectors, initialize Int.'s 33 to 120, power management initialization 
 0B   PnP initialization; verify the RTC time, detect bad battery, read the CMOS data into the BIOS stack area, assign I/O and memory for any PCI devices 
 0C   Initialization of BIOS data area 
 0D   Program some of chipset's value; Measure the CPU for display, initialize the video 
 0E   Initialize APIC (multiprocessor BIOS only); Show startup screen message 
 0F   DMA channel 0 tested 
 10   DMA channel 1 tested 
 11   DMA page registers tested 
 12   Reserved 
 13   Reserved 
 14   Test 8254 0 counter 2 
 15   Test 8259 interrupt mask bit for channel 1 
 16   Test 8259 interrupt mask bit for channel 2 
 17   Reserved 
 19   Test 8259 functionality 
 1A   Reserved 
 1B   Reserved 
 1C   Reserved 
 1D   Reserved 
 1E   If an EISA NVM 
 1F-29   Reserved 
 30   Get size of base and extended memory 
 31   Test base and extended memory, Test base memory from 256K to 640K , test extended memory above 1MB 
 32   Test all on-board super I/O ports 
 33   Reserved 
 3A   Reserved 
 3B   Reserved 
 3C   Set flag to allow CMOS setup utility 
 3D   Install PS/2 mouse 
 3E   Try to turn on level 2 
 3F   Reserved 
 40   Reserved 
 41   Initialize floppy drive controller 
 42   Initialize hard drive controller 
 43   Initialize serial & parallel ports (PnP BIOS only) 
 45   Initialize math coprocessor 
 46-4D   Reserved 
 4E   Show all error messages on screen 
 4F   Ask for password, if needed 
 50   Write all CMOS values located in the BIOS stack back to CMOS 
 51   Reserved 
 52   Initialize all ISA ROM's; PCI initializations (PCI BIOS only), PnP initialization (PnP BIOS Only), setup shadow RAM, initialize power management 
 53   If not PnP BIOS, initialize ports; Initialize time in BIOS data area 
 54-5F   Reserved 
 60   Setup virus protection for the boot sector 
 61   Try to turn on level 2 cache 
 62   program numlock & typematic speed 
 63   Boot system via Int 19h 
 B0   Unexpected interrupt in protected mode 
 B1   Unclaimed NMI occurred 
 BE   Program defaults into chipset 
 BF   Program remaining chipset values 
 C0   Init. all standard devices with defaults 
 C1   Auto detect on-board DRAM & cache 
 C3   Test first 26K DRAM 
 C5   Copy ROM BIOS to E000-FFFF 
 FF   System booting 
AWARD Elite (Version 4.51PG) BIOS
 01   Processor test; Processor status verification 
 02   Processor test 2; Read/Write and verify all CPU registers 
 03   Initialize chips; Disable NMI, PIE, AIE, UEI, SQWV.  Disable video, parity checking, DMA.  Reset math coprocessor.  Clear all page registers and CMOS shutdown.  Initialize DMA controller 0 and 1.  Initialize interrupt controllers 0 and 1. 
 04   Test memory refresh toggle 
 05   Blank video, initialize keyboard; Keyboard controller initialization 
 07   Test CMOS interface and battery 
 08   Set up low memory; Early chipset initialization, memory presence test, OEM chipset routines, clear low 64K memory, test first 64K memory 
 09   Early cache initialization; Cyrix CPU specific, CPU and cache initialization 
 0A   Set up interrupt vector table; Initialize first 120 interrupt vectors 
 0B   Test CMOS RAM checksum 
 0C   Initialize keyboard; Detect the type of keyboard controller 
 0D   Initialize video interface; Detect CPU clock, read CMOS location 14h to find the type of video in use, detect and initialize video adapter 
 0E   Test video memory; Write sign-on message to screen, setup shadow RAM 
 0F   Test DMA controller 0; BIOS checksum test, keyboard detect and initialization 
 10   Test DMA controller 1 
 11   Test DMA page registers 
 12-13    Reserved 
 14   Test timer counter 2 
 15   Test 8259-1 mask bits 
 16   Test 8259-2 mask bits 
 17   Test stuck 8259 interrupt bits; Test stuck key 
 18   Test 8259 interrupt functionality 
 19   Test stuck NMI bits (parity I/O check) 
 1A   Benchmark; Display CPU clock 
 1B-1E   Reserved 
 1F   Set EISA mode; If the EISA memory checksum is good then EISA is initialized.  If it's not good then ISA tests and clear EISA mode flag 
 20   Enable slot 0; System board 
 21-2F   Enable slots 1-15 
 30   Size base and extended memory; Size the base memory from 256K to 640K and the extended memory above 1MB 
 31   Test base and extended memory; Test the base memory from 256K to 640K and the extended memory above 1MB using various bit patterns 
 32   Test EISA extended memory 
 33-3B   Reserved 
 3C   Setup enabled 
 3D   Initialize and install mouse if present 
 3E   Setup cache controller 
 40    Display virus protect disable or enable 
 41   Initialize floppy 
 42   Initialize hard drive 
 43   Detect & Init. serial & parallel ports 
 44   Reserved 
 45   Detect and Init. math coprocessor 
 46   Reserved 
 47   Reserved 
 48-4D   Reserved 
 4E   Mfg. POST loop, or display messages 
 4F   Security password 
 50   Write CMOS; Write CMOS back to RAM and clear screen 
 51   Pre-boot enable; Enable parity checking, enable NMI, enable cache before boot 
 52   Initialize option ROM's; Initialize and ROM's present at locations C800h to EFFFFh 
 53   Initialize time value 
 60   Setup virus protect 
 61   Set boot speed 
 62   Setup numlock 
 63   Boot attempt 
 B0   Spurious 
 B1   Unclaimed NMI 
 BE   Chipset default initialization; Program chipset registers and power-on BIOS defaults. 
 BF   Chipset initialization; Reserved 
 C0   Turn off chipset cache 
 C1   Memory presence test; OEM specific, test the size of on-board memory 
 C5   Early shadow; OEM specific, early shadow enable for fast boot 
 C6   Cache presence test; External cache-size detection test 
 E1-EF   Setup pages 
 FF   Boot loader 
AWARD Version 6.0 (i810)
 CFh   Test CMOS read/write functionality 
 C0h   Early chipset initialization:   Disable shadow RAM, L2 cache (socket 7 and below), program basic chipset registers 
 C1h   Detect memory:  Auto detection of DRAM size, type and ECC, auto detection of L2 cache (socket 7 and below) 
 C3h   Expand compressed BIOS code to DRAM 
 C5h   Call chipset hook to copy BIOS back to E000 & F000 shadow RAM 
 01h   Expand the Xgroup codes located in physical memory address 1000:0 
 02h   Reserved 
 03h   Initial Superio_Early_Init switch 
 04h   Reserved 
 05h   Blank out screen; Clear CMOS error flag 
 06h   Reserved 
 07h   Clear 8042 interface; Initialize 8042 self test 
 08h   Test special keyboard controller for Winbond 977 series Super I/O chips; Enable keyboard interface 
 09h   Reserved 
 0Ah   Disable PS/2 mouse interface (optional); Auto detect ports for keyboard & mouse followed by a port & interface swap (optional); Reset keyboard for Winbond 977 series Super I/O chips 
 0Bh   Reserved 
 0Ch   Reserved 
 0Dh   Reserved 
 0Eh   Test F000h segment shadow to see whether it is read/write capable or not.  If test fails, keep beeping the speaker 
 0Fh   Reserved 
 10h   Auto detect flash type to load appropriate flash read/write codes into the run time area in F000 for ESCD & DMI support 
 11h   Reserved 
 12h   Use walking 1's algorithm to check out interface in CMOS circuitry.  Also set real time clock power status and then check for overrride 
 13h   Reserved 
 14h   Program chipset default values into chipset.  Chipset default values are MODBINable by OEM customers 
 15h   Reserved 
 16h   Initial Early_Init_Onboard_Generator switch 
 17h   Reserved 
 18h   Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586 or 686) 
 19h   Reserved 
 1Ah   Reserved 
 1Bh   Initial interrupts vector table.   If no special specified, all H/W interrupts are directed to SPURIOUS_INT_HDLR & S/W interrupts to SPURIOUS_soft_HDLR 
 1Ch   Reserved 
 1Dh   Initial EARLY_PM_INIT switch 
 1Eh   Reserved 
 1Fh   Load keyboard matrix (notebook platform) 
 20h   Reserved 
 21h   HPM initialization (notebook platform) 
 22h   Reserved 
 23h   Check validity of RTC value; Load CMOS settings into BIOS stack.  If CMOS checksum fails, use default value instead; Prepare BIOS resource map for PCI & PnP use.  If ESCD is valid, take into consideration of the ESCD's legacy information; Onboard clock generator initialization.  Disable respective clock resource to empty PCI & DIMM slots; Early PCI initialization - Enumerate PCI bus number, assign memory & I/O resource, search for a valid VGA device & VGA BIOS, and put it into C000:0 
 24h   Reserved 
 25h   Reserved 
 26h   Reserved 
 27h   Initialize INT 09 buffer 
 28h   Reserved 
 29h   Program CPU internal MTRR (P6 & PII) for 0-640K memory address; Initialize the APIC for Pentium class CPU; Program early chipset according to CMOS setup; Measure CPU speed; Invoke video BIOS 
 2Ah   Reserved 
 2Bh   Reserved 
 2Ch   Reserved 
 2Dh   Initialize multilanguage; Put information on screen display, including Award title, CPU type, CPU speed, etc... 
 2Eh   Reserved 
 2Fh   Reserved 
 30h   Reserved 
 31h   Reserved 
 32h   Reserved 
 33h   Reset keyboard except Winbond 977 series Super I/O chips 
 34h   Reserved 
 35h   Reserved 
 36h   Reserved 
 37h   Reserved 
 38h   Reserved 
 39h   Reserved 
 3Ah   Reserved 
 3Bh   Reserved 
 3Ch   Test 8254 
 3Dh   Reserved 
 3Eh   Test 8259 interrupt mask bits for channel 1 
 3Fh   Reserved 
 40h   Test 9259 interrupt mask bits for channel 2 
 41h   Reserved 
 42h   Reserved 
 43h   Test 8259 functionality 
 44h   Reserved 
 45h   Reserved 
 46h   Reserved 
 47h   Initialize EISA slot 
 48h   Reserved 
 49h   Calculate total memory by testing the last double last word of each 64K page; Program writes allocation for AMD K5 CPU 
 4Ah   Reserved 
 4Bh   Reserved 
 4Ch   Reserved 
 4Dh   Reserved 
 4Eh   Program MTRR of M1 CPU; initialize L2 cache for P6 class CPU & program cacheable range; Initialize the APIC for P6 class CPU; On MP platform, adjust the cacheable range to smaller one in case the cacheable ranges between each CPU are not identical 
 4Fh   reserved 
 50h   Initialize USB 
 51h   Reserved 
 52h   Test all memory (clear all extended memory to 0) 
 53h   Reserved 
 54h   Reserved 
 55h   Display number of processors (multi-processor platform) 
 56h   Reserved 
 57h   Display PnP logo; Early ISA PnP initialization and assign CSN to every ISA PnP device 
 58h   Reserved 
 59h   Initialize the combined Trend Anti-Virus code 
 5Ah   Reserved 
 5Bh   Show message for entering AWDFLASH.EXE from FDD (optional feature) 
 5Ch   Reserved 
 5Dh   Initialize Init_Onboard_Super_IO switch; Initialize Init_Onboard_AUDIO switch 
 5Eh   Reserved 
 5Fh   Reserved 
 60h   Okay to enter Setup utility 
 61h   Reserved 
 62h   Reserved 
 63h   Reserved 
 64h   Reserved 
 65h   Initialize PS/2 mouse 
 66h   Reserved 
 67h   Prepare memory size information for function call: INT 15h ax=E820h 
 68h   Reserved 
 69h   Turn on L2 cache 
 6Ah   Reserved 
 6Bh   Program chipset registers according to items described in Setup & Auto-Configuration table 
 6Ch   Reserved 
 6Dh   Assign resources to all ISA PnP devices; Auto assign ports to onboard COM ports if the corresponding item in Setup is set to "AUTO" 
 6Eh   Reserved 
 6Fh   Initialize floppy controller; Setup floppy related fields in 40:hardware 
 70h   Reserved 
 71h   Reserved 
 72h   Reserved 
 73h   Enter AWDFLASH.EXE if: AWDFLASH.EXE is found in floppy dive and ALT+F2 is pressed 
 74h   Reserved 
 75h   Detect and install all IDE devices: HDD, LS120, ZIP, CDROM... 
 76h   Reserved 
 77h   Detect serial ports and parallel ports 
 78h   Reserved 
 79h   Reserved 
 7Ah   Detect and install coprocessor 
 7Bh   Reserved 
 7Ch   Reserved 
 7Dh   Reserved 
 7Eh   Reserved 
 7Fh   Switch back to text mode if full screen logo is supported: if errors occur, report errors & wait for keys, if no errors occur or F1 key is pressed continue - Clear EPA or customization logo 
 80h   Reserved 
 81h   Reserved 
 82H   Call chipset power management hook: Recover the text fond used by EPA logo (not for full screen logo), If password is set, ask for password 
 83H   Save all data in stack back to CMOS 
 84h   Initialize ISA PnP boot devices 
 85h   Final USB initialization; NET PC: Build SYSID structure; Switch screen back to text mode; Set up ACPI table at top of memory; Invoke ISA adapter ROM's; Assign IRQ's to PCI devices; Initialize APM; Clear noise of IRQ's 
 86h   Reserved 
 87h   Reserved 
 88h   Reserved 
 89h   Reserved 
 90h   Reserved 
 91h   Reserved 
 92h   Reserved 
 93h   Read HDD boot sector information for Trend Anti-Virus code 
 94h   Enable L2 cache; Program boot up speed; Chipset final initialization; Power management final initialization; Clear screen and display summary table; Program K^ write allocation; Program P6 class write combining 
 95h   Program daylight saving; Update keyboard LED and typematic rate 
 96h   Build MP table; Build and update ESCD; Set CMOS century to 20h or 19h; Load CMOS time into DOS timer tick; Build MSIRQ routing table 
 FFh   Boot attempt (INT 19h)