Lenovo x3650 M5, Installation And Service Manual

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materials, and configuration of the room; the noise levels from other equipment; the room ambient
temperature and pressure, and employees' location in relation to the equipment.
Heat output:
Approximate heat output:
• Minimum configuration: 525.45 Btu per hour (AC 154 watts)
• Maximum configuration: 6667 Btu per hour (AC 1954 watts)
Environment:
The Lenovo System x3650 M5 compute node complies with ASHRAE class A3 specifications.
Power on:
• Temperature: 5°C–40°C (41°F–104°F) up to 950 m (3117 ft). Above 950 m (3117 ft), de-rated
maximum air temperature is 1°C (33.8°F) per 175 m (574 ft).
• Humidity, non-condensing: -12°C dew point (10.4°F) and 8%–85% relative humidity.
• Maximum dew point: 24°C (75°F)
• Maximum altitude: 3050 m (10000 ft) and 5°C–28°C (41°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
Power off:
• Temperature: 5°C–45°C (41°F–113°F)
• Relative humidity: 8%–85%
• Maximum dew point: 27°C (80.6°F)
Storage (non-operating):
• Temperature: 1°C–60°C (33.8°F–140°F)
• Altitude: 3050 m (10000 ft)
• Relative humidity: 5%–80%
• Maximum dew point: 29°C (84.2°F)
Shipment (non-operating):
• Temperature: -40°C–60°C (-40°F–140°F)
• Altitude: 10,700 m (35105 ft)
• Relative humidity: 5%–100%
• Maximum dew point: 29°C (84.2°F)
Attention:
• Design to ASHRAE Class A3, ambient of 40°C (104°F), 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 (104°F).
• Chassis is powered on.
• A3 - Derate maximum allowable temperature 1°C (33.8°F) per 175 m (574 ft) above 950 m (3117 ft).
• The minimum humidity level for class A3 is the higher (more moisture) of the -12°C (10.4°F) dew point
and the 8% relative humidity. These intersect at approximately 25°C (77°F). Below this intersection
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Lenovo System x3650 M5 Installation and Service Guide