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Environmental specifications

Summary of the environmental specifications of server. Depending on the model, some features might not be available, or some specifications might not apply.

Heat output
Approximate heat output:
  • Minimum configuration: 354 BTU per hour (104 watts)
  • Maximum configuration : 1009 BTU per hour (296 watts)
Acoustical noise emissions
The server has the following acoustic noise emissions declaration:

  • Sound power level (LWAd)
    • Idling: 3.4 Bel (Typical), 4.0 Bel (Max.)
    • Operating 1: 3.4 Bel (Typical), 4.0 Bel (Max.)
    • Operating 2: 4.8 Bel (Typical), 5.4 Bel (Max.)
  • Sound pressure level (LpAm):
    • Idling: 20.3 dBA (Typical), 27.6 dBA (Max.)
    • Operating 1: 20.3 dBA (Typical), 27.6 dBA (Max.)
    • Operating 2: 35.1 dBA (Typical), 40.6 dBA (Max.)
Note
  • These sound levels were measured in controlled acoustical environments according to procedures specified by ISO 7779 and are reported in accordance with ISO 9296. Testing was conducted at 23°C ± 2°C to align with ISO7779 procedures.

  • Idling mode is the steady state in which the server is powered on but not operating any intended function. Operating mode 1 is 50% CPU TDP. Operating mode 2 is 100% CPU TDP.

  • The declared acoustic sound levels are based on the following configurations, which may change depending on configuration/conditions:
    • Typical: 1x 80 W CPU, 1x 16 GB DIMM, 1x 3.5" HDD, 1x Slim SATA ODD, 1x 300 W fixed PSU
    • Maximum: 1x 95 W CPU, 4x 32 GB DIMM, 3x 3.5" HDD, 1x 2.5" SSD, 1x Slim SATA ODD, 1x 5350-8i RAID, 1x 1G NIC, 1x 500 W fixed PSU
  • Government regulations (such as those prescribed by OSHA or European Community Directives) may govern noise level exposure in the workplace and may apply to you and your server installation. The actual sound pressure levels in your installation depend upon a variety of factors, including the number of racks in the installation; the size, materials, and configuration of the room; the noise levels from other equipment; the room ambient temperature, and employee's location in relation to the equipment. Further, compliance with such government regulations depends on a variety of additional factors, including the duration of employees' exposure and whether employees wear hearing protection. Lenovo recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.
Ambient temperature management
Important
When the ambient temperature is greater than the supported temperature, the server will shut down. The server will not power on again until the ambient temperature falls within the supported temperature range.
The ambient temperature must be 35°C or lower if the server has any of the following components:

  • M.2 drives (960 GB or below)

Environment
ThinkSystem ST50 V3 complies with ASHRAE Class A2 specifications. System performance may be impacted when the operating temperature is outside AHSARE A2 specification.
  • Air temperature:
    • Operating
      • ASHRAE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient temperature decreases by 1°C for every 300 m (984 ft) increase in altitude above 900 m (2,953 ft).
    • Server off: 5°C to 45°C (41°F to 113°F)
    • Shipment/storage: -20°C to 60°C (-4°F to 140°F)
  • Maximum altitude: 3,050 m (10,000 ft)
  • Relative Humidity (non-condensing):
    • Operating
      • ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
    • Shipment/storage: 8% to 90%
  • 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.
Note
The server is designed for standard data center environment and recommended to be placed in industrial data center.
  • Particulate contamination
    Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might pose a risk to the device that is described in this document.