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.

Acoustical noise emissions
Ambient temperature management
Environment

Acoustical noise emissions

The server has the following acoustic noise emissions declaration:

Configuration		Typical
L_WA.m (B)	Idle	3.5
L_WA.m (B)	Operating	4.5
K_v (B)	Idle	0.4
K_v (B)	Operating	0.4
L_pA.m (dB)	Idle	24.6
L_pA.m (dB)	Operating	34.2

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 100% CPU TDP.
The declared acoustic sound levels are based on the following configuration, which may change depending on configuration/conditions:
- Typical: 1x 65 W CPU, 2x 32 GB DIMM, 3x 3.5" HDD, 1x 2.5" SSD, 2x 960 GB M.2, 1x 5350-8i RAID, 1x 500 W fixed PSU

Environment
ThinkSystem ST45 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: 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.

Environment

ThinkSystem ST45 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: 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.

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