
B-2
NovaScale R422 Installation and User's Guide
POST Code
Description
22h
1-3-1-3 Test 8742 Keyboard Controller
24h
Set ES segment register to 4 GB
28h
Auto size DRAM
29h
Initialize POST Memory Manager
2Ah
Clear 512 kB base RAM
2Ch
1-3-4-1 RAM failure on address line
xxxx
*
2Eh
1-3-4-3 RAM failure on data bits
xxxx
* of low byte of memory bus
2Fh
Enable cache before system BIOS shadow
32h
Test CPU bus-clock frequency
33h
Initialize Phoenix Dispatch Manager
36h
Warm start shut down
38h
Shadow system BIOS ROM
3Ah
Auto size cache
3Ch
Advanced
con
fi
guration of chipset registers
3Dh
Load alternate registers with CMOS values
41h
Initialize extended memory for RomPilot (optional)
42h
Initialize interrupt vectors
45h
POST device initialization
46h
2-1-2-3 Check ROM copyright notice
48h
Check video con
fi
guration against CMOS
49h
Initialize PCI bus and devices
4Ah
Initialize all video adapters in system
4Bh
QuietBoot start (optional)
4Ch
Shadow video BIOS ROM
4Eh
Display BIOS copyright notice
4Fh
Initialize
MultiBoot
50h
Display CPU type and speed
51h
Initialize EISA board (optional)
52h
Test
keyboard
54h
Set key click if enabled
55h
Enable USB devices
58h
2-2-3-1 Test for unexpected interrupts
59h
Initialize POST display service
5Ah
Display prompt “Press <ESC> to enter SETUP”
5Bh
Disable CPU cache
5Ch
Test RAM between 512 and 640 kB
60h
Test extended memory
62h
Test extended memory address lines
64h
Jump to UserPatch1
66h
Con
fi
gure advanced cache registers
67h
Initialize Multi Processor APIC
68h
Enable external and CPU caches
69h
Setup System Management Mode (SMM) area
6Ah
Display external L2 cache size
6Bh
Load custom defaults (optional)
6Ch
Display shadow-area message
Содержание Novascale R422
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