Release Notes

6 Memory Errors and Dell PowerEdge YX4X Server Memory RAS Features
Cache Line
Code Word 0
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 1
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 2
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 3
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 4
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 5
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 6
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Code Word 7
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
69 7170 72
141 143142 144
Figure 1 - Example Implementation of 8-Bit Symbol SIze Advanced ECC
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
X
X
X
X
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
X
X
X
X
69 7170 72
141 143142 144
Figure 2 - Advanced ECC can correct multi-bit errors in a single symbol…
1
. . .
32 4
5 76 8 9 1110 12 13 1514 16 65 6766 68
X
73 7574 76
78 8079 81 82 8483 85 86 8887 89 137 139138 140
X
69 7170 72
141 143142 144
Figure 3 - But Advanced ECC cannot correct errors in multiple symbols