Intel DH61AG Specification page 90

Intel Desktop Board DH61AG Technical Product Specification
Table 55. Port 80h POST Codes
Port 80 Code
0x00,0x01,0x02,0x03,0x04,0x05
0x10,0x20,0x30,0x40,0x50
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x21
0x22
0x23
0x25
0x28
0x29
0x2A
0x2B
90
Progress Code Enumeration
Entering S0, S2, S3, S4, or S5 state
Resuming from S2, S3, S4, or S5 state
Security Phase (SEC)
Starting BIOS execution after CPU BIST
SPI prefetching and caching
Load BSP microcode
Load APs microcode
Platform program baseaddresses
Wake Up All APs
Initialize NEM
Pass entry point of the PEI core
PEI before MRC
PEI Platform driver
Set bootmode, GPIO init
Early chipset register programming including graphics init
Basic PCH init, discrete device init (IEEE 1394, SATA)
LAN init
Exit early platform init driver
SMBUSriver init
Entry to SMBUS execute read/write
Exit SMBUS execute read/write
MRC entry point
Reading SPD from memory DIMMs
Detecting presence of memory DIMMs
Configuring memory
Testing memory
Exit MRC driver
Start to Program MTRR Settings
Done Programming MTRR Settings
ACPI S States
PEI SMBUS
Memory
PEI after MRC
continued