6. BIOS Setup
SPI-8150-LVA, SPI-8151-LVA
81
Hard disk(s) fail (08)
Sector Verify failed.
Keyboard is locked out - Unlock the key.
Unlock the key. BIOS detect the keyboard is locked. P17 of keyboard controller is pulled low.
Keyboard error or no keyboard present
Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being
pressed during the boot.
Manufacturing POST loop
System will repeat POST procedure infinitely while the P15 of keyboard controller is pulled low. This is
also used for M/B burn in test.
BIOS ROM checksum error - System halted
The checksum of ROM address F0000H-FFFFFH is bad.
Memory test fail
BIOS reports the memory test fail if the onboard memory is tested error.
6.16. POST Codes
POST
(hex)
Description
CFh
Test CMOS R/W functionality.
C0h
Early chipset initialization:
-Disable shadow RAM
-Disable L2 cache
-Program basic chipset registers
C1h
Detect memory
-Auto-detection of DRAM size, type and ECC.
-Auto-detection of L2 cache
C3h
Expand compressed BIOS code to DRAM
C5h
Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.
0h1
Expand the Xgroup codes locating in physical address 1000:0
02h
Reserved
