Technical data

Troubleshooting
4-38
Code Description
28h Autosize DRAM
2Ah Clear 512K base RAM
2Ch RAM failure on address line xxxx*
2Eh RAM failure on data bits xxxx* of low byte of memory bus
2Fh Initialize external cache before shadowing
30h RAM failure on data bits xxxx* of high byte of memory bus
32h Test CPU bus-clock frequency
34h Test CMOS RAM
35h Initialize alternate chipset registers
36h Warm start shut down
37h Re-initialize the chipset (MB only)
38h` Shadow system BIOS ROM
39h Reinitialize the cache (MB only)
3Ah Autosize cache
3Ch Configure advanced chipset registers
3Dh Load alternate registers with CMOS value
42h Initialize interrupt vectors
44h Initialize BIOS interrupt
46h Check ROM copyright notice
47h Initialize manager for PCI Option ROMs
48h Check video configuration against CMOS
49h Initialize PCI bus and devices
4Ah Initialize all video adapters in system
4Bh Display QuietBoot screen
4Ch Shadow video BIOS ROM
4Eh Display copyright notice.
50h Display CPU type and speed
51h Initialize EISA board
52h Test keyboard
continued