Tyan Computer S5520, Q35T warranty Phoenix Bios Post Code, Code Beeps / Description

4.3 Phoenix BIOS Post Code

Code	Beeps / Description			Code		Beeps / Description
02h	Verify Real Mode			32h		Test CPU bus-clock
						frequency
03h	Disable Non-Maskable			33h		Initialize Phoenix Dispatch
	Interrupt (NMI)					Manager
04h	Get CPU type			36h		Warm start shut down
06h	Initialize system hardware			38h	Shadow system BIOS ROM
08h	Initialize chipset with initial			3Ah		Autosize cache
	POST values
09h	Set IN POST flag			3Ch		Advanced configuration of
						chipset registers
0Ah	Initialize CPU registers			3Dh	Load alternate registers with
						CMOS values
0Bh	Enable CPU cache			42h		Initialize interrupt vectors
0Ch	Initialize caches to initial			45h		POST device initialization
	POST values
0Eh	Initialize I/O component			46h		2-1-2-3	. Check ROM
						copyright	notice
0Fh	Initialize the local bus IDE			48h		Check video configuration
						against CMOS
10h	Initialize Power			49h		Initialize PCI bus and
	Management					devices
11h	Load alternate registers with			4Ah		Initialize all video adapters
	initial POST values					in system
12h	Restore CPU control word			4Bh		QuietBoot start (optional)
	during warm boot
13h	Initialize PCI Bus Mastering			4Ch		Shadow video BIOS ROM
	devices
14h	Initialize keyboard controller			4Eh	Display BIOS copyright
						notice
16h	1-2-2-3	. BIOS ROM		50h		Display CPU type and
	checksum					speed
17h	Initialize cache before			51h		Initialize EISA board
	memory autosize
18h	8254 timer initialization			52h		Test keyboard
1Ah	8237 DMA controller			54h		Set key click if enabled
	initialization
1Ch	Reset Programmable			58h		2-2-3-1	. Test for
	Interrupt	Controller				unexpected interrupts
20h	1-3-1-1	. Test DRAM refresh		59h		Initialize POST display
						service
22h	1-3-1-3	. Test 8742 KBD		5Ah		Display prompt "Press F2 to
	Controller					enter SETUP"
24h	Set ES segment register to			5Bh		Disable CPU cache
	4 GB
26h	Enable A20 line			5Ch		Test RAM between 512 and
						640 KB
28h	Autosize DRAM			60h		Test extended memory
29h	Initialize POST Memory			62h		Test extended memory
	Manager					address lines
2Ah	Clear 512 KB base RAM			64h		Jump to UserPatch1
2Ch	1-3-4-1	. RAM failure on		66h		Configure advanced cache
	address					registers
2Eh	1-3-4-3	. RAM failure on		67h		Initialize Multi Processor
	data bits of low byte of					APIC
			66