Agilent Technologies 54835A, 45A, 46A manual Troubleshooting, POST Code Listing AMI Motherboard only

Chapter 5: Troubleshooting

POST Code Listing (AMI Motherboard only)

57h	The A20 address line, parity, and the NMI are disabled. Adjusting the memory size depending on
	relocation and shadowing next.
58h	The memory size was adjusting for relocation and shadowing. Clearing the Hit message next.
59h	The Hit message is cleared. The AIT... message is displayed. Starting the DMA and interrupt
	controller test next.
60h	The DMA page register test passed. Performing the DMA Controller 1 base register test next.
62h	The DMA controller 1 base register test passed. Performing the DMA controller 2 base register
	test next.
65h	The DMA controller 2 base register test passed. Programming DMA controllers 1 and 2 next.
66h	Completed programming DMA controllers 1 and 2. Initializing the 8259 interrupt controller next.
67h	Completed 8259 interrupt controller initialization.
7Fh	Extended NMI source enabling is in progress.
80h	The keyboard test has started. Clearing the output buffer and checking for stuck keys. Issuing the
	keyboard reset command next.
81h	A keyboard reset error or stuck key was found. Issuing the keyboard controller interface test
	command next.
82h	The keyboard controller interface test completed. Writing the command byte and initializing the
	circular buffer next.
83h	The command byte was written and global data initialization has completed. Checking for a locked
	key next.
84h	Locked key checking is over. Checking for a memory size mismatch with CMOS RAM data next.
85h	The memory size check is done. Displaying a soft error and checking for a password or bypassing
	WINBIOS Setup next.
86h	The password was checked. Performing any required programming before WINBIOS Setup next.
87h	The programming before WINBIOS Setup has completed. Uncompressing the WINBIOS Setup
	code and executing the AMIBIOS Setup or WINBIOS Setup utility next.
88h	Returned from WINBIOS Setup and cleared the screen. Performing any necessary programming
	after WINBIOS Setup next.
89h	The programming after WINBIOS Setup has completed. Displaying the power on screen message
	next.
8Bh	The first screen message has been displayed. The AIT... message is displayed. Performing the PS/
	2 mouse check and extended BIOS data area allocation check next.
8Ch	Programming the WINBIOS Setup options next.
8Dh	The WINBIOS Setup options are programmed. Resetting the hard disk controller next.
8Fh	The hard disk controller has been reset. Configuring the floppy drive controller next.
95h	Initializing the bus option ROMs from C800 next.
96h	Initializing before passing control to the adapter ROM at C800.
97h	Initialization before the C800 adapter ROM gains control has completed. The adapter ROM check
	is next.
98h	The adapter ROM had control and has now returned control to BIOS POST. Performing any
	required processing after the option ROM returned control.
99h	Any initialization required after the option ROM test has completed. Configuring the timer data
	area and printer base address next.
9Ah	Set the timer and printer base addresses. Setting the RS-232 base address next.

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