LED information

POST progress codes and definitions

The following table shows the current boot progress codes and associated messages, sent to the POST progress LEDs:

Progress CodeDefinition

 

 

Host Processor

 

 

 

0×10

Power-on initialization of the host processor (Boot Strap

 

Processor)

 

 

0×11

Host processor cache initialization (including AP)

 

 

0×12

Starting Application processor initialization

 

 

0×13

SMM initialization

 

 

Chipset

 

 

 

0×21

Initializing a chipset component

 

 

Memory

 

 

 

0×22

Reading configuration data from memory (SPD on DIMM)

 

 

0×23

Detecting presence of memory

 

 

0×24

Programming timing parameters in the memory controller

 

 

0×25

Configuring memory parameters in the memory controller

 

 

0×26

Optimizing memory controller settings

 

 

0×27

Initializing memory, such as ECC init

 

 

0×28

Testing memory

 

 

PCI Bus

 

 

 

0×50

Enumerating PCI busses

 

 

0×51

Allocating resources to PCI busses

 

 

0×52

Hot-plug PCI controller initialization

 

 

0×53-0×57

Reserved for PCI bus

 

 

USB

 

 

 

0×58

Resetting USB bus

 

 

0×59

Reserved for USB devices

 

 

ATA/ATAPI/SATA

 

 

 

0×5A

Resetting PATA/SATA bus and all devices

 

 

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