Tektronix MSO70000 Series Service Manual page 98

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