Intel Desktop Board DX79SI Technical Product Specification
84
Table 42. Typical Port 80h POST Sequence
POST Code
Description
21
Initializing a chipset component
22
Reading SPD from memory DIMMs
23 Detecting
presence of memory DIMMs
25 Configuring
memory
28 Testing
memory
34
Loading recovery capsule
E4 Entered
DXE
phase
12 Starting
application
processor initialization
13 SMM
initialization
50
Enumerating PCI buses
51
Allocating resourced to PCI bus
92
Detecting the presence of the keyboard
90 Resetting
keyboard
94
Clearing keyboard input buffer
95 Keyboard
Self
Test
EB Calling
Video
BIOS
58
Resetting USB bus
5A
Resetting PATA/SATA bus and all devices
92
Detecting the presence of the keyboard
90 Resetting
keyboard
94
Clearing keyboard input buffer
5A
Resetting PATA/SATA bus and all devices
28 Testing
memory
90 Resetting
keyboard
94
Clearing keyboard input buffer
E7
Waiting for user input
01 INT
19
00 Ready
to
boot
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