Chapter 7: Troubleshooting
167
22
1-3-1-3
Test 8742 Keyboard Controller
24
Set ES segment register to 4GB
28
1-3-3-1
Autosize DRAM
2A
Clear 512K base RAM
2C
1-3-4-1
RAM failure on address line xxxx*
2E
1-3-4-3
RAM failure on data bits xxxx* of low byte of memory bus
30
1-4-1-1
RAM failure on data bits xxxx* of high byte of memory bus
32
Test processor bus-clock frequency
34
Test CMOS
35
RAM Initialize alternate chipset registers
36
Warm start shut down
37
Reinitialize the chipset (MB only)
38
Shadow system BIOS ROM
39
Reinitialize the cache (MB only)
3A
Autosize cache
3C
Configure advanced chipset registers
3D
Load alternate registers with CMOS values new
40
Set Initial processor speed new
42
Initialize interrupt vectors
44
Initialize BIOS interrupts
46
2-1-2-3
Check ROM copyright notice
47
Initialize manager for PCI Option ROMs
48
Check video configuration against CMOS
49
Initialize PCI bus and devices
4A
Initialize all video adapters in system
4B
Display QuietBoot screen
4C
Shadow video BIOS ROM
4E
Display copyright notice
50
Display processor type and speed
51
Initialize EISA board
52
Test keyboard
54
Set key click if enabled
56
Enable keyboard
58
2-2-3-1
Test for unexpected interrupts
Port-80h Codes and Beep Codes
Port-80
Codes
Beep
Codes
Error Descriptions
9250R.book Page 167 Friday, April 9, 1999 9:44 AM
Summary of Contents for ALR 9250R
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