HP ProLiant DL180 Server Software Configuration Guide

Contents 45

Table 27 Checkpoint codes

16h BIOS ROM checksum

17h Initialize cache before memory auto size

18h 8254 timer initialization

1Ah 8237 DMA controller initialization

1Ch Reset programmable interrupt controller

20h 1-3-1-1 Test DRAM refresh

22h 1-3-1-3 Test 8742 keyboard controller

24h Set ES segment register to 4 GB

26h Enable gate A20 line

28h Autosize DRAM

29h Initialize POST memory manager

2Ah Clear 512 KB base RAM

2Bh Initialize extended CMOS

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

30h RAM failure on data bits xxxx of high byte of memory bus

32h Test processor bus-clock frequency

33h Initialize AMI Dispatch Manager

34h Test CMOS

35h Reinitialize registers

36h Warm start shut down

37h Reinitialize chipset with initial POST values

38h Shadow system BIOS ROM

39h Reinitialize caches to initial POST values

3Ah Auto size cache

3Ch Advanced configuration of chipset registers

3Dh Load alternate registers with CMOS values

41h Initialize extended memory for ROM pilot

42h Initialize interrupt vectors

45h POST device initialization