RadiSys PL35Q, Руководство по эксплуатации продукта, Страница: 17 / 72

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Environmental specifications
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Power budget
Before choosing a power supply, it is recommended that you always create a power budget for
your system. A sample power budget for the Q35 motherboards populated with processor,
memory, expansion cards, etc. are shown below.
Note: These sample values may not apply to to your system.
Environmental specifications
All Q35 motherboards comply with the following environmental specifications.
Table 14. Power budget for PL35Q
Component
Motherboard current
Power consumption
+3.3V +5V +12V -12V +5V standby
Motherboard 2.6A 1.0A 3.7A 0.03A 0.1A 59W
12 USB ports — 6A — — — 30W
4 SATA ports — 1.6A 1.2A — — 22.4W
2 serial ports — 0.02A 0.02A — — 0.3W
1 IDE connector — 1.5A 1.5A — — 25.5W
Expansion slots (total) 16.6A 5A 8.6A 0.1A — 184.2W
Heatsink — — 0.4A — — 4.8W
Front panel I/O 0.1A — — — — 0.3W
Video DDC channel — 0.05A — — — 0.3W
Total 19.32A 15.27A 15.42A 0.13A 0.1A 327W
Table 15. Environmental specifications
Characteristic State Value
Temperature
(ambient) Operating 0º to +55º C
Operation above +30º C reduces the maximum operational relative
humidity
Operating gradient ±5°C per minute
Non-operating
-40º C to +85º C, 5º C per minute maximum excursion gradient
Relative humidity Operating 15% to 95% RH non-condensing
Non-operating 15% to 90% RH non-condensing at +40°C
Vibration Operating 0.25 G at 5 to 200 Hz. Approx. 15 min./axis.
Non-operating 0.5 G at 5 to 200 Hz. Approx. 15 min./axis.
Shock Non-operating 30g 11ms, half-sine, 3 axes
Packaged Drop test, 10-up bulk packaging, 30 inches free-fall, 152 inches/s velocity
change.
Altitude Operating To 15,000 ft. (4,500m)
Non-operating To 40,000 ft. (12,000m)
MTBF See MTBF reliability predictions on page 19.
Airflow Based on standard Intel guidelines
Fuses Self-resetting PTC fuse