Troubleshooting (DPO7000 Series, MSO70000/C Series, DSA/DPO70000B/C Series)
Table 4-12: 039-0185-xx μATX POST codes (cont.)
Item no . Module
Displayed POST
code Description
Initialize any option ROMs present from C8000h to EFFFFh
NOTE. When FSCAN option is enabled, RO Ms initialize from
C8000h to F7FFFh.
Reserved 79
Reserved 7A
Reserved 7B
Reserved
7C
Boot Medium detection 7D Read and store boot partition head and cylinders values in
RAM
Final Init 7E
Final init for last micro details before boot
Special KBC patch
7F
Set system speed for boot Setup NumLock status according to
Setup
Boot Attempt 80
Set low stack Boot via INT 19h
13
Boot FF
S4 POST Codes
Early Chipset Init
5A
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard
Initialized the mouse
Cmos Check
5B
Check CMO S Circuitry and reset CMOS
Chipset default P rog 5C Program the chipset registers with CMOS values. Init onboard
clock generator
Identify the CPU
5D
Check the CPU ID and init L1/L2 cache
Setup Interrupt Vector
Table
5E
Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR
and INT 00h-1Fh according to INT_TBL
First step initialize if single CPU Onboard
Re-init KB
If support HPM, HP M get initialized here.
Test C M OS Interface
and Battery status
5F
Verifies CMOS is working correctly
detects bad battery. If failed, load CMOS defaults and load
into chipset
KBC final Init
60
Final Initial KBC and setup BIOS data area
14
Initialize Video Interface
61
Read CMOS location 14h to find out type of video in use
Detect and Initialize Video Adapter
MSO70000/C, DSA70000B/C, DPO70000B/C, D PO7000, MSO5000, DPO5000 Series 4–39
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