Technical Specifications - Silicon Graphics Origin 350 User Manual

3: Compute Module
Technical Specifications
130
Table 3-4 lists the bandwidth characteristics of the compute module.
Table 3-4 Bandwidth Characteristics of the Compute Module
Characteristic Peak Bandwidth
NUMAlink channel 3.2 GB/s full duplex
1.6 GB/s each direction
Xtown2 channel 2.4 GB/s full duplex
1.2 GB/s each direction
Main memory 3200 MB/s
SYSAD 1600 MB/s
Table 3-5 summarizes the general features of the compute module.
Note: The following table assumes that the expansion compute module does not include
an optional IO9 PCI card, which would add one input and one output real-time interrupt
port, an Ethernet port, and an internal and external SCSI drive, and support for one serial
port. The IO9 card is also needed to support the DVD-ROM, the SCSI disc drives, and the
serial daughtercard with the PS/2 connectors and three serial ports (this serial
daughtercard is not an option for the expansion compute module).
Table 3-5 General Features of the Compute Module
Feature
MIPS RISC processor
Memory
Expansion slot
Console port
NUMAlink port
XIO port
Sustainable Bandwidth
~1420 MB/s each direction
~1066 MB/s half duplex
~1744 MB/s full duplex, ~872 MB/s each
direction
2140 MB/s
~1400 MB/s
Base Compute Module
2 or 4
1 GB to 8 GB
1 PCI, 2 PCI-X
1
1 (1.6 GB/s each direction)
1 (800 MB/s each direction)
Expansion Compute Module
2 or 4
1 GB to 8 GB
4 PCI-X
1
1 (1.6 GB/s each direction)
1 (800 MB/s each direction)
007-4566-001