Server User Manual

GS160/320 System Overview 2-9
The CPU, memory, power, and I/O riser modules plug into the backplane.
Because of the orientation of the QBB backplanes, the modules are situated
differently in the front and rear of the system box. See Section 3.5 for more
information.
The switch interconnect on the backplane allows any processor to access any
memory on the QBB. The backplane also provides power to the modules.
Global port module
Directory module
CPU module
Memory module
I/O riser modules
Clock splitter module
Power system manager (PSM) module
Main power module
Auxiliary power module