Technical Specifications
B–2
System Specifications
Table B–1 lists the Digital AlphaStation 255 system processor features, performance,
dimensions, environmental, and acoustics specifications.
Table B–1: Processor Features
Feature Digital AlphaStation 255 System Specifics
Processor type DECchip 21064A
Core logic DECchip 21071-AA chipset
Secondary cache Write-back, 1 MB (megabyte)
Table B–2: System Specifications
Attributes Specification
PCI clock 33.33 Mhz, 30.0 ns cycle time
Slots Two PCI, one PCI/ISA combination, and one ISA-only
Memory Expandable up to 1 GB
Total SCSI bus length 3 meters (9.8 feet) for fast SCSI operation
4 meters (13.1 feet) for slow SCSI operation
* Memory is expandable up to 1 GB when 128-MB SIMMs are available.
Table B–3: System Dimensions
Dimension Specification
Width 44.6 cm (17.56 inches)
Length 46 cm (19.6 inches)
Height 13 cm (5.12 inches)
Weight 15.9kg (35 lb)
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