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
Test C M OS Interface
and Battery Status
23
Verifies CMOS is working correctly and detects bad battery.
If failed, load CMOS defaults and load into chipset
Reserved 24
Reserved 25
Reserved 26
KBC final Init
27
Final Initial KBC and setup BIOS data area
Reserved 28
Initialize Video Interface
29
Read CMOS location 14h to find out type of video in use.
Detect and Initialize Video Adapter.
Reserved 2A
Reserved 2B
Reserved
2C
Video memory test 2D Test video memory, write sign-on message to screen.
Setup shadow RAM - Enable shadow according to Setup.
Reserved 2E
Reserved 2F
Reserved 30
Reserved 31
Reserved 32
PS2 Mouse setup
33
Set up PS2 Mouse and reset KB
Reserved 34
Test DMA Controller 0
35 Test DMA channel 0
Reserved 36
Test DMA Controller 1
37 Test DMA channel 1
Reserved 38
Test DMA Page
Registers
39 Test DMA Page Registers.
Reserved 3A
Reserved 3B
Test Timer Counter 2 3C Test 8254 Timer 0 Counter 2.
Reserved 3D
Test 8259-1 Mask Bits 3E
Verify 8259 Channel 1 masked interrupts by alternately turning
off and on the interrupt lines.
Reserved 3F
Test 8259-2 Mask Bits 40
Verify 8259 Channel 2 masked interrupts by alternately turning
off and on the interrupt lines.
Reserved 41
12
Reserved 42
MSO70000/C, DSA70000B/C, DPO70000B/C, D PO7000, MSO5000, DPO5000 Series 4–33
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