Intel® Server System SR2500AL
Appendix B: POST Code Diagnostic LED Decoder
Revision – 1.6
Intel order number D31980-009
93
Table 57. Diagnostic LED POST Code Decoder
Diagnostic LED Decoder
G=Green, R=Red, A=Amber
Checkpoint
MSB
LSB
Description
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
PCI Bus
0x50h
OFF
R
OFF
R
Enumerating PCI busses
0x51h
OFF
R
OFF
A
Allocating resources to PCI busses
0x52h
OFF
R
G
R
Hot Plug PCI controller initialization
0x53h
OFF
R
G
A
Reserved for PCI bus
0x54h
OFF
A
OFF
R
Reserved for PCI bus
0x55h
OFF
A
OFF
A
Reserved for PCI bus
0x56h
OFF
A
G
R
Reserved for PCI bus
0x57h
OFF
A
G
A
Reserved for PCI bus
USB
0x58h
G
R
OFF
R
Resetting USB bus
0x59h
G
R
OFF
A
Reserved for USB devices
ATA / ATAPI / SATA
0x5Ah
G
R
G
R
Resetting PATA / SATA bus and all devices
0x5Bh
G
R
G
A
Reserved for ATA
SMBUS
0x5Ch G A
OFF
R
Resetting
SMBUS
0x5Dh
G
A
OFF
A
Reserved for SMBUS
Local Console
0x70h
OFF
R
R
R
Resetting the video controller (VGA)
0x71h
OFF
R
R
A
Disabling the video controller (VGA)
0x72h
OFF
R
A
R
Enabling the video controller (VGA)
Remote Console
0x78h
G
R
R
R
Resetting the console controller
0x79h
G
R
R
A
Disabling the console controller
0x7Ah
G
R
A
R
Enabling the console controller
Keyboard (PS2 or USB)
0x90h
R
OFF
OFF
R
Resetting the keyboard
0x91h
R
OFF
OFF
A
Disabling the keyboard
Summary of Contents for SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory
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