HP 9000 rp8420 Server - User Service Guide, Fifth Edition

Table 1-1 Cell Board CPU Load Order (continued)
CPU 0 LocationCPU 1 LocationCPU 3 LocationCPU 2 LocationNumber of
CPUs Installed
CPUs installedCPUs installedEmpty slotCPUs installedSix
CPUs installedCPUs installedCPUs installedCPUs installedEight
Figure 1-7 CPU Socket Locations on Cell Board
DIMMS
The memory DIMMs used by the HP 9000 rp8420 server are custom-designed by HP and are
identical to those used in the Superdome server. Each DIMM contains SDRAM memory
components and is qualified to run at 125MHz. The CPU chip set will not support traditional
DRAMs.
The HP 9000 rp8420 server will support DIMMs with densities of 256MB, 512MB, 1GB and 2GB.
Table 1-2 shows each supported DIMM size, the resulting total server capacity, and the memory
component density. Each DIMM is connected to two buffer chips on the cell board.
Table 1-2 HP 9000 rp8420 server DIMMs
Memory Component DensityTotal HP 9000 rp8420 server CapacityDIMM Size
64Mb16GB256MB
128Mb32GB512MB
256Mb64GB1GB
512Mb128GB2GB
1Gb256GB4 GB
26 Introduction