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Appendix E: Codes and error messages
218
16 1-2-2-3 BIOS ROM checksum
18 8254 timer initialization
1A 8237 DMA controller initialization
1C Reset Programmable Interrupt Controller
20 1-3-1-1 Test DRAM refresh
22 1-3-1-3 Test 8742 keyboard controller
24 Set ES segment register to 4 GB
28 1-3-3-1 Autosize DRAM, system BIOS stops execution
here if the BIOS does not detect any usable
memory DIMMs
2A Clear 8 MB base RAM
2C 1-3-4-1 Base RAM failure, BIOS stops execution here if
entire memory is bad
32 Test processor bus-clock frequency
34 Test CMOS
35 RAM initialize alternate chipset registers
36 Warm start shut down
37 Reinitialize the chipset
38 Shadow system BIOS ROM
39 Reinitialize the cache
3A Autosize cache
3C Configure advanced chipset registers
3D Load alternate registers with CMOS values
40 Set initial processor speed new
CP Beeps Reason
AA G900 ug - EN.book Page 218 Wednesday, September 25, 2002 5:23 PM