IBM 88553RX, Installation Manual

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Chapter 1. Technical description
7
Figure 1-3 Memory-board and processor-board assembly locations
1.4 IBM XA-64 chipset
The IBM XA-64 chipset is the product name describing the chipset developed
under the code name “Summit” and implemented on the IA-64 platform. A
product of the IBM Microelectronics Division, the XA-64 chipset leverages the
proven Enterprise X-Architecture chipset used initially in the x440 and applies
the same technologies to the IA-64 architecture. The XA-64 chipset comprises
the following components:
Itanium 2 processor(s)
Cache and Scalability Controller
A single controller, code named “Tornado”, located within the processor-board
assembly.
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Processor-board
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Memory-board
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PCI-X
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