128
Intel® Server System SR2500AL User’s Guide
Figure 96. Diagnostic LED Placement Diagram
LSB
MSB
Back edge of server board
USB Port
USB Port
Diagnostic LEDs
Table 12. Diagnostic LED POST Code Decoder
Checkpoint
Diagnostic LED Decoder
Description
G=Green, R=Red, A=Amber
MSB
LSB
Host Processor
0x10h
OFF
OFF
OFF
R
Power-on initialization of the host processor
(bootstrap processor)
0x11h
OFF
OFF
OFF
A
Host processor cache initialization (including AP)
0x12h
OFF
OFF
G
R
Starting application processor initialization
0x13h
OFF
OFF
G
A
SMM initialization
Chipset
0x21h
OFF
OFF
R
G
Initializing a chipset component
Memory
0x22h
OFF
OFF
A
OFF
Reading configuration data from memory (SPD
on DIMM)
0x23h
OFF
OFF
A
G
Detecting presence of memory
0x24h
OFF
G
R
OFF
Programming timing parameters in the memory
controller
0x25h
OFF
G
R
G
Configuring memory parameters in the memory
controller
0x26h
OFF
G
A
OFF
Optimizing memory controller settings
0x27h
OFF
G
A
G
Initializing memory, such as ECC init
0x28h
G
OFF
R
OFF
Testing memory
Summary of Contents for SERVER SYSTEM SR2500AL
Page 6: ...vi Intel Server System SR2500AL User s Guide ...
Page 10: ...x Intel Server System SR2500AL User s Guide ...
Page 20: ...xx Intel Server System SR2500AL User s Guide ...
Page 22: ...xxii Intel Server System SR2500AL User s Guide ...
Page 46: ...24 Intel Server System SR2500AL User s Guide ...
Page 144: ...122 Intel Server System SR2500AL User s Guide ...
Page 158: ...136 Intel Server System SR2500AL User s Guide ...
Page 174: ...152 Intel Server System SR2500AL User s Guide ...
Page 186: ...164 Intel Server System SR2500AL User s Guide ...
Page 210: ...188 Intel Server System SR2500AL User s Guide ...