Filter
Top Products
Chapter 5: Troubleshooting
POST Code Listing (AMI Motherboard only)
5–27
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.