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Environmental Specifications
Environmental Specifications
Table 4-3 Environmental specifications
Category
Description
Temperature
Operating temperature: 5°C to 40°C (41°F to 104°F) (Operating altitude ≤ 1800 m, ASHRAE Classes A3 compliant)
Liquid-cooled working medium temperature: 2°C to 45°C (35.6°F to 113°F) (ASHRAE Class W4 compliant)
Liquid-cooled working medium fluid flow: ≥ 5 LPM (NPUs x 2 + mainboard x 1)
Storage temperature (within three months): –30°C to +60°C (–22°F to +140°F)
Storage temperature (within six months): –15°C to +45°C (5°F to 113°F)
Maximum rate of temperature change: 20°C (36°F) per hour, 5°C (9°F) per 15 minutes
NOTE:
Drain the compute node before long-term storage.
Relative humidity (RH, non-condensing)
Operating humidity: 8% to 90%
Storage humidity (within 72 hours): 8% to 95%
Storage humidity (within six months): 20% to 75%
Maximum humidity change rate: 20%/h
Air volume
500 CFM
Altitude
≤ 3,050 m (10,006.56 ft)
NOTE:
ASHRAE 2015 compliant:
When the configuration complies with ASHRAE Classes A1 and A2 and the altitude is above 900 m (2952.76 ft), the highest operating temperature decreases by 1°C (1.8°F) for every increase of 300 m (984.25 ft).
When the configuration complies with ASHRAE Class A3 and the altitude is above 900 m (2952.76 ft), the highest operating temperature decreases by 1°C (1.8°F) for every increase of 175 m (574.15 ft).
When the configuration complies with ASHRAE Class A4 and the altitude is above 900 m (2952.76 ft), the highest operating temperature decreases by 1°C (1.8°F) for every increase of 125 m (410.10 ft).
Corrosive airborne contaminant
Maximum growth rate of the corrosion product thickness:
Copper corrosion rate test: 300 Å/month (meeting level G1 requirements of the ANSI/ISA-71.04-2013 standard on gaseous corrosion)
Silver corrosion rate test: 200 Å/month
Particle contaminant
The equipment room environment meets the requirements of ISO 14664-1 Class 8.
There is no explosive, conductive, magnetic, or corrosive dust in the equipment room.
NOTE:
It is recommended that the particulate pollutants in the equipment room be monitored by a professional organization.
Acoustic noise
The data listed in the following is the declared A-weighted sound power levels (LWAd) and declared average bystander position A-weighted sound pressure levels (LpAm) measured when the server is operating in a 23°C (73.4°F) ambient environment. Noise emissions are measured in accordance with ISO 7779 (ECMA 74) and declared in accordance with ISO 9296 (ECMA 109).
Operating:
LWAd: 6.6 Bels
LpAm: 66.0 dBA
NOTE:
The actual sound levels generated during operating vary depending on the configuration, load, and ambient temperature.
