Lenovo System x3850 X6 Installation And Service Manual page 24

– Declared sound power, operating: 7.0 bels
• Environment:
Notes: When eXFlash DIMMs are installed in the server, the eXFlash DIMMs supported environment is:
– Temperature: 5°C to 30°C (41°F to 86°F)
– Altitude: 0 to 1000 m (3,281 ft)
– Air temperature:
– Server on: 5°C to 40°C (41°F to 104°F); altitude: 0 to 3050 m (10,000 ft) derate maximum dry bulb
temperature by 1°C (1.8°F) per 175 m (574 ft) above 950 m (3,117 ft). Maximum rate of change 20°C
(68°F) per hour.
– Server off: 5°C to 45°C (41° to 113ˋ°F)
– Shipment: -40°C to +60°C (-40°F to 140°F)
Note: The server is designed to the ASHRAE Class A3 guidelines.
– Humidity range (noncondensing):
– Server on: Minimum = higher (more moisture) of -12°C (10°F) dew point and 8% to 85% relative
humidity; maximum dew point: 24°C (75°F)
– Server off: 8% to 85% relative humidity; maximum dew point: 27°C (80°F)
– Shipment: 5% to 100%
– Particulate contamination
Attention: Airborne particulates and reactive gases acting alone or in combination with other
environmental factors such as humidity or temperature might pose a risk to the server. For information
about the limits for particulates and gases, see "Particulate contamination" on page 1957.
• Airflow:
– Ideal airflow: 35 cubic feet per minute (CFM)
– Typical airflow: 50 CFM
– Maximum airflow: 160 CFM
• Heat output:
Approximate heat output:
– Minimum configuration at idle (4-socket): 495 Btu per hour (145 watts)
– Minimum configuration at idle (8-socket): 990 Btu per hour (290 watts)
– Maximum configuration (4-socket): 11,840 Btu per hour (3470 watts)
– Maximum configuration (8-socket): 23,680 Btu per hour (6940 watts)
• Electrical input:
– Sine-wave input (50 or 60 Hz) required
– Input voltage low range:
– Minimum: 100 V ac
– Maximum: 127 V ac
– Input voltage high range:
– Minimum: 200 V ac
– Maximum: 240 V ac
– Input kilovolt-amperes (kVA), approximately:
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System x3850 X6 and x3950 X6 Installation and Service Guide