Intel® Server Board SE7520BD2 Technical Product Specification Error Reporting and Handling
Revision 1.3 Intel Confidential
121
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 59. POST Progress Code LED Example
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
5.3.3.2 Memory Error Codes
In table 60 below these memory errors are written at POST, and in the SEL
Table 60. Memory Error Codes
Tpoint Description
001h MEM_ERR_CHANNEL_B_OFF
(DIMM mismatch forced Channel B disabled)
002h MEM_ERR_CK_PAIR_OFF
(Slow DIMM(s) forced clock pair disabled)
0E1h MEM_ERR_NO_DEVICE
(No memory installed)
0E2h MEM_ERR_TYPE_MISMATCH
0E3h MEM_ERR_UNSUPPORTED_DIMM
(Unsupported DIMM type)
0E4h MEM_ERR_CHL_MISMATCH
0E5h MEM_ERR_SIZE_MISMATCH
0E8h MEM_ERR_ROW_ADDR_BITS
0E9h MEM_ERR_INTERNAL_BANKS
LSB
MSB
Back edge of baseboard