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GS160/320 System Configuration Rules 3-11
System Box Configuration Rules
• A system box has two QBBs.
• A QBB supports up to four CPU modules.
• A QBB supports up to four memory modules.
• A QBB has up to two I/O riser modules; each I/O riser module connects to
one PCI box.
• A system box supports up to four PCI boxes.
Figure 3–6 System Box QBB (Cabinet Rear)
PK2228
CPU 0
PSM
Memory 1
Memory 3
Global Port - Odd
(Connected to front QBB)
Global Port - Even
(Connected to back QBB)
CPU 2
Clock
Splitter
Auxiliary
Power
Main
Power
Memory 0
I/O Riser
I/O Riser
Power
Connectors
Memory 2
CPU 1 CPU 3
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