Dimms; Cells And Npartitions; Memory Subsystem; Server Dimms - HP rp7440 Installation Manual

Figure 1-9 Memory Subsystem

DIMMs

The memory DIMMs used by the server are custom designed by HP. Each DIMM contains DDR-II
SDRAM memory that operates at 533 MT/s. Industry standard DIMM modules do not support
the high availability and shared memory features of the server. Therefore, industry standard
DIMM modules are not supported.
The server supports DIMMs with densities of 1, 2, and 4 Gb.
supported DIMM size, the resulting total system capacity, and the memory component density.
Each DIMM is connected to two buffer chips on the cell board.
See Appendix C for more information on DIMM slot mapping and valid memory configurations.
Table 1-2 Server DIMMs
DIMM Size
1 Gb
2 Gb
4 Gb

Cells and nPartitions

An nPartition comprises one or more cells working as a single system. Any I/O chassis that is
attached to a cell belonging to an nPartition is also assigned to the nPartition. Each I/O chassis
has PCI card slots, I/O cards, attached devices, and a core I/O card assigned to the I/O chassis.
20 HP Integrity rx7640 Server and HP 9000 rp7440 Server Overview
Total Capacity
32 Gb
64 Gb
128 Gb
Table 1-2 (page 20)
Memory Component Density
128 Mb
256 Mb
512 Mb
lists each