| 00 |
Reserved; Beep and halt
if error occurs |
| 01 |
Test CPU registers |
| 02 |
Test the 8042 keyboard
controller buffer |
| 03 |
Test the 8042 keyboard
controller reset |
| 04 |
Verify presence of keyboard
and check communication |
| 05 |
Read keyboard input port
(WS386SX16) |
| 06 |
Initialize system board
support chipset |
| 09 |
Test BIOS ROM checksum |
| 0D |
Test 8254 programmable
interrupt timer registers (13 short beeps) |
| 0E |
Test ASIC registers (CLEM
only, 14 short beeps) |
| 0F |
Test CMOS RAM shutdown
byte (15 short beeps) |
| 10 |
Test DMA controller 0 registers |
| 11 |
Test DMA controller 1 registers |
| 12 |
Test DMA page registers
(EGA.VGA vertical retrace failed) |
| 13 |
EGA/VGA RAM test failed |
| 14 |
Test memory refresh toggle
(EGA/VGA CRT registers failed) |
| 15 |
Test base 64KB memory |
| 16 |
Set interrupt vectors in
base memory |
| 17 |
Initialize video |
| 18 |
Test display memory |
| 20 |
EISA bus board power on
(EISA systems only) |
| 30 |
Test programmable interrupt
controller #1 mask register |
| 31 |
Test programmable interrupt
controller #2 mask register |
| 32 |
Test programmable interrupt
controller's for stuck interrupts |
| 33 |
Test for stuck NMI (P386
25.33, P486, CLAM and EISA) |
| 34 |
Test for stuck DDNIL status
(CLEM only) |
| 40 |
Test CMOS RAM backup battery |
| 41 |
Calculate and verify CMOS
checksum |
| 42 |
Setup CMOS RAM options
(except WS386SX16) |
| 50 |
Test the protected mode |
| 51 |
Test protected mode exceptions |
| 60 |
Calculate RAM size |
| 61 |
Test RAM |
| 62 |
Test shadow RAM (WS386SX16,
P386 25/33, P486, CLEM, EISA); test cache (P386/16) |
| 63 |
Test cache memory (P386
25/33, P486, CLEM, EISA); copy video BIOS to shadow RAM (p386C, P386/16,
WS386SX16) |
| 64 |
Copy system BIOS to shadow
RAM (P386 25/33, P486, CLEM,EISA); Copy video BIOS to shadow RAM (P386
16, WS386SX16) |
| 65 |
Copy video BIOS to shadow
RAM P386 25/33, P486, CLEM,EISA); Test cache (WS386SX16) |
| 66 |
Test 8254 programmable
interrupt timer channel 2 (P386 25/33, P486, EISA) |
| 67 |
Initialize memory (Eagle
only) |
