Lenovo System x3250 M5 Installation And Service Manual page 22

• Maximum weight: 12.3 kg (27.12 lb) depending on your configuration
Acoustical noise emissions:
Sound power: 6.5 bels
Environment:
• Air temperature:
– Server on: 10°C to 35°C (50.0°F to 95.0°F); altitude: 0 to 914.4 m (3000 ft)
– Server on: 10°C to 32°C (50.0°F to 89.6°F); altitude: 914.4 m (3000 ft) to 2133.6 m (7000 ft)
– Server on: 10°C to 28°C (50.0°F to 83°F); altitude: 2133.6 m (7000 ft) to 3050 m (10000 ft)
– Server off: 10°C to 43°C (50°F to 109.4°F)
– Shipping: -40°C to 60°C (-40°F to 140°F)
• Humidity:
– Server on: 8% to 80%
– Server off: 8% to 80%
• Particulate contamination:
– 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 711.
Heat output:
Approximate heat output:
• Minimum configuration: 143 BTU per hour (42 watts)
• Maximum configuration: 710 BTU per hour (208 watts)
Server complies with ASHRAE class A3 specifications when Operating temperature enhancement kit
is installed:
• Temperature:
– 5°C to 40°C (41°F to 104°F)
– Altitude: 0 to 950 m (3,117 ft); decrease the maximum system temperature by 1°C for every
175 m increase in altitude.
• Humidity:
– Non-condensing: -12°C dew point (10.4°F)
– Relative humidity: 8% to 85%
• Maximum dew point: 24°C (75°F)
• Maximum altitude: 3050 m (10,000 ft); 5°C - 28°C (41°F - 82°F)
• Maximum rate of temperature change:
– Hard disk drive: 20°C/hr (68°F/hr)
– Tape drive: 5°C/hr (41°F/hr)
Attention: Design to ASHRAE Class A3, ambient of 40°C, with relaxed support:
• Support cloud like workload with no performance degradation acceptable (Turbo-Off)
• Under no circumstance, can any combination of worst case workload and configuration result in
system shutdown or design exposure at 40°C
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Lenovo System x3250 M5Installation and Service Guide