The memory riser cards are located behind the fan module bay. The designations each memory riser (MR) card and its associated CPU are located inside the server on labels affixed to the rear MR card bracket. The cards are designated as MR, and the CPUs are designated as P. The slots and CPUs are labeled from right to left when viewed from the front of the server as follows:
P0/MR0 (rightmost slot)
P0/MR1
P1/MR0
P1/MR1
P2/MR0
P2/MR1
P3/MR0
P3/MR1 (leftmost slot)
The following illustration shows the numbering for the memory riser slots and their associated CPUs as described above: