HP rp8420 HP 9000 rp8420 Server - User Service Guide, Fifth Edition - Page 26

Table 1-1 Cell Board CPU Load Order (continued) Number of CPU 2 Location CPUs Installed Six CPUs installed Eight CPUs installed CPU 3 Location Empty slot CPUs installed Figure 1-7 CPU Socket Locations on Cell Board CPU 1 Location CPUs installed CPUs installed CPU 0 Location CPUs installed CPUs installed 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 DIMM Size 256MB 512MB 1GB 2GB 4 GB Total HP 9000 rp8420 server Capacity Memory Component Density 16GB 64Mb 32GB 128Mb 64GB 256Mb 128GB 512Mb 256GB 1Gb 26 Introduction