Lenovo ThinkServer sd350 Installation And Service Manual page 24

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• Power on :
– Temperature: 10°C - 35°C (50°F - 95°F) up to 950 m (3,117ft). Above 950 m, de-rated maximum air
temperature 1°C / 300m
– Humidity, non-condensing: 20% - 80% relative humidity
– Maximum dew point: 21°C (70°F)
– Maximum altitude: 3050 m (10,000 ft) & 10°C - 28°C (50°F - 82°F)
– Maximum rate of temperature change: 5°C/hr (41°F/hr) for tape drive, 20°C/hr (68°F/hr) for HDDs
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• Power off :
– Temperature: 5°C to 45°C (41°F - 113°F)
– Relative humidity: 8% - 80%
– Maximum dew point: 27°C (80.6°F)
• Storage (non-operating)::
– Temperature: 1°C to 60°C (33.8°F - 140°F)
– Altitude: 3050 m (10,000 ft)
– Relative humidity: 5% - 80%
– Maximum dew point: 29°C (84.2°F)
• Shipment (non-operating)
– Temperature: -40°C to 60°C (-40°F - 140°F)
– Altitude: 10700 m (35105 ft)
– Relative humidity: 5% - 100%
– Maximum dew point: 29°C (84.2°F)
Fan fails mode:
When any fan fails and ambient temperature is above 27°C, system performance may be degraded and
have an event log indicated.
Heat output (based on 1600–Watts):
Approximate heat output:
• Minimum configuration: 604.1 BTU per hour (177 watts)
• Maximum configuration: 6051.3 BTU per hour (1773 watts)
Electrical input:
• Sine-wave input (50-60 Hz) required
• Input voltage high range:
– Minimum: 200 V AC
– Maximum: 240 V AC
• Input kilovolt-amperes (kVA), approximately:
– Minimum: 0.153 kVA
– Maximum: 1.544 kVA
Attention:
1. Chassis is powered on.
2. A2 - Derate maximum allowable temperature 1°C/300 m above 950 m.
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Lenovo ThinkServer sd350 Server Type 5493, Lenovo ThinkServer n400 Enclosure Type 5495Installation and Service Guide
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