Intel® Server Board Set SE8500HW4

Error Handling

12. Error Handling

12.1 LEDs

12.1.1POST Progress LEDs

The BIOS provides the current stage of the POST process via a block of eight LEDs. The LEDs are shown in Table 88.

Table 88. POST Progress LED Location and Example

LED Reference Designator

 

Bit

Example: Initialize Memory

DS7D2

7

(MSB)

 

 

 

 

 

 

 

DS7D3

6

 

 

 

 

 

 

 

 

DS7D4

5

 

On

 

 

 

 

 

 

DS7D5

4

 

 

0x27

 

 

 

 

DS7D6

3

 

 

 

 

 

 

 

 

 

 

DS7E1

2

 

On

 

 

 

 

 

 

DS7E2

1

 

On

 

 

 

 

 

 

DS7E3

0

(LSB)

On

 

 

 

 

 

 

 

Table 89. POST Progress LED Codes

 

 

Code

Description

Host

Processor:

 

 

0x10

Power-on initialization of the host processor (Boot Strap Processor)

 

 

0x11

Host processor cache initialization, including Application Processor (AP)

 

 

0x12

Starting AP initialization

 

 

0x13

SMM initialization

 

 

Chipset:

 

 

 

0x21

Initializing a chipset component

Memory:

 

0x22

Reading configuration data from memory (SPD on DIMM)

 

 

0x23

Detecting presence of memory

 

 

0x24

Programming timing parameters in the memory controller

 

 

0x25

Configuring memory parameters in the memory controller

 

 

0x26

Optimizing memory controller settings

 

 

0x27

Initializing memory, such as ECC init

 

 

0x28

Testing memory

 

 

PCI Bus:

 

 

 

0x50

Enumerating PCI busses

 

 

0x51

Allocating resources to PCI buses

 

 

0x52

PCI Hot Plug* controller initialization

 

 

Revision 1.0

111

 

Intel order number D22893-001