Intel SGI Altix 450 manual Technical Specifications and Pinouts, System-level Specifications

Appendix A

Technical Specifications and Pinouts

This appendix contains technical specification information about your system, as follows:

•“System-level Specifications” on page 153

•“Physical Specifications” on page 154

•“Environmental Specifications” on page 156

•“Power Specifications” on page 157

•“I/O Port Specifications” on page 158

System-level Specifications

Table A-1 summarizes the Altix 450 system configuration ranges. Note that while each compute/memory board can house either one or two processor sockets; each socket holds two processor “cores”.

Table A-1		Altix 450 System Configuration Ranges
	Category		Minimum	Maximum
	Processor cores		4a	76
	Individual Rack Units (IRUs)		1 per rack	4 per system imageb
	Compute/memory blade DIMM		4 DIMMs per blade	12 DIMMs per blade
	capacity
	System main memory DIMMs		4 per system image	228 per system image
	Number of base I/O blades		One per IRU	4 per system image

a.Single-socket compute blades support two cores each. Dual-socket blades support two or four cores per blade.

b.Two complete systems of four IRUs each can be installed in the same 42U tall rack.

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