Installation Guide, Seventh Edition - HP Integrity rx7620 Servers

Chapter 1

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.

Figure 1-8 CPU Locations on Cell Board

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.

Table 1-2 Cell Board CPU Load Order

Number

of CPUs

Installed

Socket 0

Location

Socket 1

Location

Socket 2

Location

Socket 3

Location

Two CPU installed Empty slot Terminator Empty

Four CPU installed Empty slot CPU installed Empty

Six CPU installed CPU or empty CPU installed Empty or CPU

Eight CPU installed CPU installed CPU installed CPU installed

CPU

Controller

Cell

Socket 2

Socket 3

Socket 1

Socket 0