Intel S3210SHLX - Entry Server Board Motherboard - POST Code Checkpoints; Table 44.: POST Progress Code LED Example; Table 45. POST Code Checkpoints

Error Reporting and Handling Intel® Server Boards S3200SH/S3210SH TPS
Revision 1.3
80
• Red bits = 1010b = Ah
• Green bits = 1100b = Ch
Since the red bits correspond to the upper nibble and the green bits correspond to the lower
nibble, the two are concatenated to be ACh.
Table 44.: POST Progress Code LED Example
8h 4h 2h 1h
LEDs Red Green Red Green Red Green Red Green
ACh 1 1 0 1 1 0 0 0
Result Amber Green Red Off
MSB LSB
Figure 19. Example of Diagnostic LEDs on Server Board
5.2.2 POST Code Checkpoints
Table 45. POST Code Checkpoints
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
LSBMSB
Diagnostic LEDs
Back edge of baseboard
USB Port
USB Port