• Quadtel v 3.07 AT BIOS Post Codes
• Quadtel 16K XT BIOS Post Codes

 

Quadtel v 3.07 AT BIOS Post Codes:

02	Flag test
04	Register test
06	System hardware initialization
08	Initialize chipset registers
0A	BIOS ROM checksum
0C	DMA page register test
0E	8254 programmable interrupt timer test
10	8254 programmable interrupt timer initialization
12	8237 DMA controller test
14	8237 DMA controller initialization
16	Initialize 8259 programmable interrupt controller; reset math coprocessor
18	8259 programmable interrupt controller test
1A	Memory refresh test
1C	Base 64K RAM address test
1E	Base 64K RAM memory test
20	Base 64K RAM test for 386 based systems
22	8742 keyboard controller self test
24	MC 146818 CMOS test
26	Start first protected mode test
28	Memory sizing test
2A	Autosize memory chips
2C	Chip interleave enable test
2E	First protected mode test exit
30	Unexpected shutdown
32	System board memory size
34	Relocate shadow RAM if configured
36	Configure EMS system
38	Configure wait states
3A	Retest 64K RAM base memory
3C	CPU speed calculation
3E	Get switches from 8042 keyboard controller
40	Configure CPU speed
42	Initialize interrupt vectors
44	Verify video configuration
46	Initialize video system
48	Test unexpected interrupts
4A	Start second protected mode test
4C	Verify LDT protected mode instruction
4E	Verify TR protected mode instruction
50	Verify LSL protected mode instruction
52	Verify LAR protected mode instruction
54	Verify VERR protected mode instruction
56	Unexpected exception
58	Address line A20 test
5A	Keyboard ready test
5C	Determine AT or XT keyboard
5E	Start third protected mode test
60	Base memory test
62	Base memory address test
64	Shadow memory test
66	Extended memory test
68	Extended address test
6A	Determine memory size
6C	Display error messages
6E	Copy BIOS to shadow memory
70	8254 programmable interrupt timer clock test
72	MC 146818 real time clock test
74	Keyboard stuck key test
76	Initialize hardware interrupt vectors
78	Math coprocessor test
7A	Determine serial ports available
7C	Determine parallel ports available
7E	Initialize BIOS data area
80	Determine floppy and hard disk controller
82	Floppy disk test
84	Hard disk test
86	External ROM scan
88	System key lock test
8A	Wait for <F1> key pressed
8C	Final system initialization
8E	Interrupt 19 boot loader
B0	Unexpected interrupt before or after boot up

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Quadtel 16K XT BIOS Post Codes:

03	Test flag register
06	Test CPU register
09	Initialize system hardware
0C	Test BIOS ROM checksum
0F	Initialize 8237 DMA page register
12	Test 8237 DMA address and count registers
15	Initialize 8237 DMA controller
18	Test 8253 programmable interrupt timer
1B	Initialize 8253 programmable interrupt timer
1E	Start memory refresh test
21	Test base 64K RAM
24	Set up common interrupt temp stack
27	Initialize 8259 programmable interrupt controller
2A	Test interrupt mask register
2D	Test for unexpected interrupt
30	Test V40 DMA if present
31	Test for DDNIL bits if present
33	Verify system clock interrupt
36	Test keyboard
39	Set up interrupt table
3C	Read system configuration switches
3F	Test video
42	Determine serial ports available
45	Determine parallel ports available
48	Determine if game port available
4B	Display copyright message
4E	Calculate CPU speed
54	Test system memory
55	Test floppy drive
57	Initialize system before boot
5A	Call interrupt 19 boot loader

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