Intel Desktop Board DQ45CB Technical Product Specification
84
Table 40. 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 busses
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
