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007-4653-001
3: Cx-brick
IP53 Node Boards
The Cx-brick consists of one to four IP53 node boards. Each IP53 node board has the
following components:
•
1 Bedrock application-specific integrated circuit (ASIC) that enables communication
between the processors, memory, network, and I/O devices.
•
0 or 4 processors (labeled A, B, C, and D in Figure 3-2).
•
8 MB of L2 cache for each processor to reduce memory latency.
•
2 MegArray connectors (1 XIO and 1 NUMAlink 3) to connect the IP53 node board
to the router board.
•
2, 4, 6, or 8 dual-inline memory modules (DIMMs) that provide from 1 GB to 8 GB of
local memory. The Cx-brick supports 512 MB and 1 GB single DIMM sizes (see
Table 3-2).
Your SGI support service engineer (SSE) can increase or decrease the size of
memory by adding or removing DIMM pairs.
Table 3-2
Memory DIMM Specifications
Memory Kit
Single DIMM Size
DDR SDRAM
Technology
1 GB with premium integrated directory memory
512 MB
128 Mbits
2 GB with premium integrated directory memory
1 GB
256 Mbits
Содержание Origin 3900
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