HP Integrity rx8620 Server User Service Guide

DIMMs across all cells in a partition should have identical memory loaded. Figure 1-8 shows the
DIMM slot layout on the cell board. For DIMM load order and the DIMM layout on the cell
board, see Table 1-3 and Figure 1-8.
A quad, as seen in Figure 1-8, is a grouping of four DIMMs. Configurations with 8 or 16 DIMM
slots loaded are recommended. The DIMM sizes in a quad can be different, but the DIMMs in
an echelon must be the same size.
Table 1-3 DIMM Load Order
Quad LocationDIMM Location on Cell
Board
Action TakenNumber of DIMMs Installed
Quad 00A and 0BInstall First2 DIMMs = 1 Echelon
Quad 11A and 1BAdd Second4 DIMMs = 2 Echelons
Quad 22A and 2BAdd Third6 DIMMs = 3 Echelons
Quad 33A and 3BAdd Fourth8 DIMMs = 4 Echelons
Quad 04A and 4BAdd Fifth10 DIMMs = 5 Echelons
Quad 15A and 5BAdd Sixth12 DIMMs = 6 Echelons
Quad 26A and 6BAdd Seventh14 DIMMs = 7 Echelons
Quad 37A and 7BAdd Last16 DIMMs = 8 Echelons
Figure 1-8 DIMM Slot Layout
Cells and nPartitions
An nPartition has one or more cells (containing processors and memory) that are assigned to the
nPartition for its exclusive use. Any I/O chassis that is attached to a cell belonging to an nPartition
24 Overview