Intel DX58SO2 User's Guide download pdf (Page 76)

Intel Desktop Board DX58SO2 Product Guide

Table 18 lists the Port 80h POST codes in hexadecimal notation.

Table 18. Port 80h POST Codes

POST Code Description

ACPI S States

00 Entering S0 state, standard

01-05 Entering S1-S5 state

10, 20, 30,

40, 50

Resuming from S1-S5 state

Security Phase (SEC)

08 Starting BIOS execution after CPU BIST

09 SPI prefetching and caching

0A, 0B Load BSP/APS microcode

0C Platform program base addresses

0D Wake up all APS

0E Initialize NEM

0F Pass entry point of the PEI core

PEI Phase Before MRC

11 Set bootmode, GPIO init

12 Early chipset register programming

13 Basic PCH init, discrete device init

14 LAN init

15 Exit early platform init driver

16 SMBUS driver init

17, 18 Entry/Exit to SMBUS execute read/write

19, 1A Entry/Exit to CK505 programming

1B, 1C Entry/Exit to PEI overclock programming

MEC Memory Detection

21 MRC entry point

23 Reading SPD from memory DIMMs

24 Detecting presence of memory DIMMs

27 Configuring memory

28 Testing memory

29 Exit MRC driver

PEI After MRC

2A, 2B Start/finish programming MTRR settings

PEIMs/Recovery

31, 33, 34 Recovery has initiate, load, valid

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 89 90

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Intel DX58SO2 User's Guide Page 76