Figure 2-4 Base Compute Module Connected To An Mpx Module - Silicon Graphics Origin 350 User Manual

2: System Overview
Ethernet port
SCSI port
Serial ports
RTI port
RTO port
72
To increase the amount of memory in the system, the compute modules can connect to a
memory and PCI expansion (MPX) module as shown in Figure 2-4.The MPX module is
a 2U AC-powered device that can have from 1 GB to 8 GB of memory. This module also
has four PCI/PCI-X slots.
For more information about the MPX module, see "MPX Module" on page 86.
Base compute module
L2
CPU
L2 CPU
3.2 GB/s
1.6 GB/s
1.6 GB/s
L2
CPU
2.4 GB/s
CPU
L2
PCI bus 2 slot 2
PCI bus 2 slot 1
PCI bus 1 slot 2
PCI bus 1 slot 1
DVD-ROM
IO9
SCSI port
USB port
L1 control
Console port
Figure 2-4 Base Compute Module Connected to an MPX Module
To increase the number of PCI/PCI-X slots, the base compute module can connect to an
MPX module. The MPX module is a 2U AC-powered device that has four PCI/PCI-X
slots. This module also increases the amount of memory by 1 GB to 8 GB.
To increase the number of PCI slots, the base compute module can connect to a PCI
expansion module. The PCI expansion module is a 4U, DC-powered device that can have
either 6 or 12 PCI slots.
Memory/
Directory
NUMAlink 3 channel
3.2 GB/s full-duplex
(1.6 GB/s each direction)
Bedrock
Xtown2 channel
2.4 GB/s full-duplex
(1.2 GB/s each direction)
PIC
Two disks
MPX module
Memory/
Directory
3.2 GB/s
Bedrock
2.4 GB/s
PCI bus 2 slot 2
PCI bus 2 slot 1
PIC
PCI bus 1 slot 2
PCI bus 1 slot 1
USB port
L1 control
Console port
007-4566-001