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AMI-BIOS CHECK-POINT, (C)1991 American Megatrends Inc.,All Rights Reserved
1346 Oakbrook Dr. #120. GA-30093. Phone:(404)-263-8181, Fax:(404)-263-9381
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Checkpoint Codes for AMI BIOS (Release date prior to 4/9/90) 
       
POSTcode       TEST-DESCRIPTION
        
  01           NMI disabled & 286 reg. test about to start.
  
  02           286 register test over.
  
  03           ROM checksum OK.
  
  04           8259 initialization OK.
  
  05           CMOS pending interrupt disabled.
  
  06           Video disabled & system timer counting OK.
  
  07           CH-2 of 8253 test OK.
  
  08           CH-2 delta count test OK.
  
  09           CH-1 delta count test OK.
  
  0A           CH-0 delta count test OK.
  
  0B           Parity status cleared.
  
  0C           Refresh & system timer OK.

  0D           Refresh link toggling OK.
  
  0E           Refresh period ON/OFF 50% OK.
  
  10           Confirmed refresh ON & about to start 64K memory.
  
  11           Address line test OK.
  
  12           64K base memory test OK.
  
  13           Interrupt vectors initialized.
  
  14           8042 keyboard controller test OK.
  
  15           CMOS read/write test OK.
  
  16           CMOS checksum/battery check OK.
  
  17           Monochrome mode set OK.
  
  18           Color mode set OK.
  
  19           About to look for optional video ROM.
  
  1A           Optional video ROM control OK.
  
  1B           Display memory read/write test OK.
  
  1C           Display memory read/write test for alternate display OK.

  1D           Video retrace check OK.
  
  1E           Global equipment byte set for video OK.
  
  1F           Mode set call for Mono/Color OK.
  
  20           Video test OK.
  
  21           Video display OK.
  
  22           Power on message display OK.
  
  30           Virtual mode memory test about to begin.
  
  31           Virtual mode memory test started.
  
  32           Processor in virtual mode.
  
  33 - 34      Memory address line test in progress.
  
  35           Memory below 1MB calculated.
  
  36           Memory size computation OK.
  
  37           Memory test in progress.
  
  38           Memory initialization over below 1MB.
  
  39           Memory initialization over above 1MB.
  
  3A           Display memory size.
  
  3B           About to start below 1MB memory test.
  
  3C           Memory test below 1MB OK.
  
  3D           Memory test above 1MB OK.
  
  3E           About to go to real mode (shutdown).
  
  3F           Shutdown successful and and entered in real mode.
  
  40           About to disable gate A-20 address line.
  
  41           Gate A-20 line disabled successfully.
  
  42           About to start DMA controller test.
  
  4E           Address line test OK.
  
  4F           Processor in real mode after shutdown.
  
  50           DMA page register test OK.
  
  51           DMA unit-1 base register test about to start.
  
  52           DMA unit-1 channel OK, about to begin CH-2.
  
  53           DMA CH-2 base register test OK.
  
  54           About to test f/f latch for unit-1.
  
  55           f/f latch test both unit OK.
  
  56           DMA unit 1 & 2 programmed OK.
  
  57           8259 initialization over.
  
  58           8259 mask register check OK.
  
  59           Master 8259 mask register OK, about to start slave.
  
  5A           About to check timer and keyboard interrupt level.
  
  5B           Timer interrupt OK.
  
  5C           About to test keyboard interrupt.
  
  5D           ERROR! timer/keyboard interrupt not in proper level.
  
  5E           8259 interrupt controller error.
  
  5F           8259 interrupt controller test OK.
  
  70           Start of keyboard test.
  
  71           Keyboard BAT test OK.
  
  72           Keyboard test OK.
  
  73           Keyboard global data initialization OK.
  
  74           Floppy setup about to start.
  
  75           Floppy setup OK.
  
  76           Hard disk setup about to start.
  
  77           Hard disk setup OK.
  
  79           About to initialize timer data area.
  
  7A           Verify CMOS battery power.
  
  7B           CMOS battery verification done.
  
  7D           About to analyze diagnostic test results for memory.
  
  7E           CMOS memory size update OK.
  
  7F           About to check optional ROM C000:0h.
  
  80           Keyboard sensed to enable setup.
  
  81           Optional ROM control OK.
  
  82           Printer global data initialization OK.
  
  83           RS-232 global data initialization OK.
  
  84           80287 check/test OK.
  
  85           About to display soft error message.
  
  86           About to give control to system ROM E000:0h.
  
  87           System ROM E000:0h check over.
  
  00           Control given to Int-19, boot loader.