ATI Technologies FireGL X3-256 Guide de l'utilisateur Page 55

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System Components
007-4701-003 33
System Components
This section briefly describes the standard and optional modules of a Silicon Graphics
Prism, in the following subsections:
“Base Compute Module” on page 33
“XG2N Graphics Module” on page 35
“CPU Expansion Module” on page 36
“CMPX Module” on page 38
“Router Module” on page 40
Base Compute Module
The base compute module is a 2U AC-powered device that consists of the following:
Two Intel Itanium 2 processors (each with integrated L1, L2, and L3 caches)
Between 2 GB and 24 GB of local DIMM memory (4, 8, or 12 DIMMs)
One to four PCI/PCI-X cards
Note: At least one base compute module comes factory-installed with a base I/O
card in the bottom PCI/PCI-X slot and a four-port USB card in the upper slot. This
base I/O card is typically an IO10 card, but may optionally be an IO9 card (described
in “Optional IO9 PCI Card” on page 53).
One or two sled-mounted serial ATA disk drives (at least one disk drive is required
in the system). The serial ATA disk drive(s) and the DVD-ROM require an IO10
card.
•DVD-ROM
Each base compute module also contains an L1 controller that provides the following:
Controls and sequences power
Controls and monitors the environment
Initiates a reset
Stores identification and configuration information
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