Features of the AlphaPC 164 Motherboard
7
2.3 Physical Parameters
The AlphaPC 164 motherboard is an ATX-size printed-wiring board (PWB) with the
following dimensions:
•
Length: 30.48 cm (12.0 in. ±0.0005 in.)
•
Width: 24.38 cm (9.6 in. ±0.0005 in.)
•
Height: 6.0 cm (2.4 in.)
The motherboard can be used in certain desktop and deskside systems that have ade-
quate clearance for the 21164 microprocessor heat sink and fan. All ISA and PCI
expansion slots are usable in standard desktop or deskside enclosures.
Table 4 AlphaPC 164 Motherboard Environmental Requirements
Parameter
Specification
Operating temperature
10°C to 40°C (50°F to 104°F)
Storage temperature
–55°C to 125°C (–67°F to 257°F)
Relative humidity
10% to 90% with maximum wet bulb temperature 28°C
(82°F) and minimum dew point 2°C (36°F)
Rate of (dry bulb) temperature
change
11°C/hour
±
2°C/hour (20°F/hour
±
4°F/hour)
