Tektronix MSO70000 Series Service Manual page 98

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Troubleshooting (MSO/DPO5000 Series)
Table 4-20: BIOS POST codes: ECM-945GM Series (cont.)
Displayed
Module
POST code
Early PM Init
1D
Reserved
1E
Re-initial KB
1F
Reserved
20
HPM init
21
Reserved
22
Test CMOS Interface
23
and Battery Status
Reserved
24
Reserved
25
Reserved
26
27
KBC final Init
Reserved
28
Initialize Video
29
Interface
Reserved
2A
Reserved
2B
Reserved
2C
Video memory test
2D
Reserved
2E
Reserved
2F
Reserved
30
Reserved
31
Reserved
32
PS2 Mouse setup
33
Reserved
34
Test DMA Controller 0
35
Reserved
36
37
Test DMA Controller 1
Reserved
38
Test DMA Page
39
Registers
Reserved
3A
Reserved
3B
Test Timer Counter 2
3C
4–54
Description
First step initialize if single CPU onboard
Re-init KB
If support HPM, HPM get initialized here
Verifies CMOS is working correctly and detects bad battery.
If failed, load CMOS defaults and load into chipset
Final Initial KBC and setup BIOS data area
Read CMOS location 14h to find out type of video in use.
Detect and Initialize Video Adapter.
Test video memory, write sign-on message to screen.
Set up shadow RAM - Enable shadow according to Setup.
Set up PS2 Mouse and reset KB
Test DMA channel 0
Test DMA channel 1
Test DMA Page Registers.
Test 8254 Timer 0 Counter 2.
MSO70000/C, DSA70000B/C, DPO70000B/C, DPO7000, MSO5000, DPO5000 Series

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