HP Integrity rx7620 Site Preparation Guide, Fourth Editon - HP Integrity rx762 - Page 24

Introduction Detailed HP Integrity rx7620 Server Description Central Processor Units The cell board can hold up to four CPU modules and can be populated with CPUs in increments of one after meeting the minimum of two CPUs installed on the cell board. On a cell board, the processors must be the same type and speed. See Table 1-2 for the CPU load order that must be maintained when adding CPUs to the cell board. Refer to Figure 1-8 for the locations on the cell board for installing CPUs. A single CPU configuration is not available for the cell board. Table 1-2 Cell Board CPU Load Order Number of CPUs Installed Socket 0 Location Two CPU installed Four CPU installed Six CPU installed Eight CPU installed Socket 1 Location Socket 2 Location Empty slot Empty slot CPU or empty CPU installed Terminator CPU installed CPU installed CPU installed Socket 3 Location Empty Empty Empty or CPU CPU installed Figure 1-8 CPU Locations on Cell Board CPU Socket 2 CPU Socket 3 Cell Controller CPU CPU Socket 1 Socket 0 DIMMs The memory DIMMs used by the HP Integrity rx7620 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. 10 Chapter 1