SGI Origin 300 Base Module
007-4498-002
125
IP45 Motherboard
The IP45 motherboard houses the following components:
•
Two or four MIPS RISC processors
(2-MB L2 cache per processor).
•
Four dual-inline memory module (DIMM) slots
that are organized as two banks of
memory per two DIMM slots (four banks total), and configurable from 512 MB to
4 GB of main memory. Refer to “Dual-inline Memory Modules (DIMMs)” on
page 126 for more information on DIMMs.
•
Bedrock ASIC
(or hub ASIC) that enables communication between the processors,
memory, and I/O devices.
•
Xbridge ASIC
that is the interface between the Bedrock ASIC and the PCI slots.
•
Serial ID EEPROM
that contains component information.
•
L1 controller logic
that monitors and controls the environment of the base module
(for example, fan speed, operating temperature, and system LEDs).
•
VRMs
that convert the incoming voltages to the voltage levels required by the
internal components.
•
Light-emitting diodes (LEDs)
that provide information about the NUMAlink port
and the processors:
•
Two NUMAlink LEDs, controlled by the L1 controller.
•
Four heartbeat LEDs (one for each processor), controlled by the Bedrock ASIC.
•
Ports
that provide connection to external components.
Note:
Ports and LEDs are described in detail in “Rear Chassis Components” on
Summary of Contents for Origin 300
Page 1: ...SGI Origin 300 System with NUMAlink Module User s Guide 007 4498 002 ...
Page 4: ......
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Page 39: ...Base System Components 007 4498 002 13 Figure 1 10 L2 Controller ...
Page 49: ...Optional System Components 007 4498 002 23 Figure 1 17 SGI TP9400 Storage System ...
Page 54: ...28 007 4498 002 1 Introduction Figure 1 18 Tape Drive Libraries L20 L40 L80 L180 L700 ...
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