The switch on the backplane connects the CPU modules, memory modules, I/O riser modules, and global port. In an 8-P system, the global ports connect the QBBs to the distribution board. In a 16-P or a 32-P system, the global ports connect the QBBs to the hierarchical switch.

Figure 2–3 System Box Block Diagram (8-Processor System)

Modem

PCI Box

Standard

I/O SCM

Operator

 

Console

PCI Box

 

PCI Box

PCI Box

System Box

CPU

CPU

CPU

CPU

I/O

Switch

GP

MEM

MEM

MEM

MEM

 

 

 

Distribution

 

 

 

Board

CPU

CPU

CPU

CPU

I/O

Switch

GP

MEM

MEM

MEM

MEM

 

 

 

PK-0601-98

GS160/320 System Overview 2-5

Page 21
Image 21
Compaq GS160, GS80, GS320 manual System Box Block Diagram 8-Processor System