HP XU700 manual Codes

6 Tests and Error Messages

Order in Which POST Tests Are Performed

Checkpoint		MaxiLife LCD	Beep
	POST Routine Description	Display
Code			Codes
		Message
06h	Initialize system hardware
08h	Initialize chipset with initial POST values
09h	Set IN POST flag	P.O.S.T Start
0Ah	Initialize CPU registers	CPU Regist. Init
0Bh	Enable CPU cache
0Ch	Initialize caches to initial POST values
0Eh	Initialize I/O component	I/O Init.
0Fh	Initialize the local bus IDE	IDE Init.
10h	Initialize Power Management
11h	Load alternate registers with initial POST values
12h	Restore CPU control word during warm boot
13h	Initialize PCI Bus Mastering devices	PCI Mast. Init.
14h	Initialize keyboard controller
16h	BIOS ROM checksum	BIOS Check sum
17h	Initialize cache before memory autosize
18h	8254 timer initialization
1Ah	8237 DMA controller initialization
1Ch	Reset Programmable Interrupt Controller
20h	Test DRAM refresh	RAM Refresh Test
22h	Test 8742 keyboard controller	Keyb. Ctrl. Test
24h	Set ES segment register to 4 GB
26h	Enable A20 line
28h	Autosize DRAM	Memory Detection	3
29h	Initialize POST Memory Manager
2Ah	Clear 512 KB base RAM

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