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. The latest specifications information is always available at Lenovo Press website.

Acoustical noise emissions
Environment

Acoustical noise emissions

The server has the following acoustic noise emissions declaration.

	Typical	Storage	GPU
Sound power levels (L_WAd)
Idling	6.6 Bel	7.4 Bel	7.4 Bel
Operating	8.1 Bel	7.5 Bel	8.6 Bel
Sound pressure level (L_pAm)
Idling	49.9 dBA	59.5 dBA	59.5 dBA
Operating	65.4 dBA	61.3 dBA	71.2 dBA

The declared sound levels are based on the following configurations, which may change depending on configurations or conditions.

Config.	Typical	Storage	GPU
Chassis (2U)	Front 16 x 2.5''	Front 12 x 3.5''	Front 16 x 2.5''
Fan	4 x performance fans	6 x performance fans	6 x performance fans
Processor	1 x 300 W	1 x 240 W	1 x 300 W
DIMM	12 x 64 GB	12 x 64 GB	12 x 64 GB
Drive	16 x 2.4 TB SAS HDDs	Front 12 x 2 TB + rear 4 x 2 TB HDDs	16 x 2.4 TB SAS HDDs
RAID	1 x RAID 940-8i	1 x RAID 940-16i	1 x RAID 940-16i
OCP	Intel E810-DA2 10/25GbE SFP28 2-Port OCP
PSU	2 x 1800 W	2 x 1800 W	2 x 2400 W
GPU	None	None	3 x A100

Note

These sound levels were measured in controlled acoustical environments according to procedures specified by ISO7779 and are reported in accordance with ISO 9296.
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.

Environment
ThinkSystem SR655 V3 is designed for standard data center environment and is recommended to be placed in industrial data center. Depending on hardware configurations, the server complies with ASHRAE Class H1, A2, A3, or A4 specifications with certain thermal restrictions. For detailed thermal information, see Thermal rules. System performance may be impacted when operating temperature is outside permitted conditions. Air temperature: Operating ASHRAE class H1: 5°C to 25°C (41°F to 77°F) The maximum ambient temperature decreases by 1°C for every 500 m (1640 ft) increase in altitude above 900 m (2,953 ft) 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) ASHRAE class A3: 5°C to 40°C (41°F to 104°F) The maximum ambient temperature decreases by 1°C for every 175 m (574 ft) increase in altitude above 900 m (2,953 ft) ASHRAE class A4: 5°C to 45°C (41°F to 113°F) The maximum ambient temperature decreases by 1°C for every 125 m (410 ft) increase in altitude above 900 m (2,953 ft) Server off: 5°C to 45°C (41°F to 113°F) Shipment/storage: -40°C to 60°C (-40°F to 140°F) Maximum altitude: 3,050 m (10,000 ft) Relative Humidity (non-condensing): Operating ASHRAE class H1: 8%–80%; maximum dew point: 17°C (62.6°F) ASHRAE class A2: 8%–80%; maximum dew point: 21°C (70°F) ASHRAE class A3: 8%–85%; maximum dew point: 24°C (75°F) ASHRAE class A4: 8%–90%; maximum dew point: 24°C (75°F) Shipment/storage: 8% to 90% Note When the ambient temperature is greater than the supported max temperature, the server will shut down (ASHRAE 45°C). The server will not power on again until the ambient temperature falls within the supported temperature range.

Environment

ThinkSystem SR655 V3 is designed for standard data center environment and is recommended to be placed in industrial data center. Depending on hardware configurations, the server complies with ASHRAE Class H1, A2, A3, or A4 specifications with certain thermal restrictions. For detailed thermal information, see Thermal rules. System performance may be impacted when operating temperature is outside permitted conditions.

Air temperature:
- Operating
  - ASHRAE class H1: 5°C to 25°C (41°F to 77°F)
    
    The maximum ambient temperature decreases by 1°C for every 500 m (1640 ft) increase in altitude above 900 m (2,953 ft)
  - 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)
  - ASHRAE class A3: 5°C to 40°C (41°F to 104°F)
    
    The maximum ambient temperature decreases by 1°C for every 175 m (574 ft) increase in altitude above 900 m (2,953 ft)
  - ASHRAE class A4: 5°C to 45°C (41°F to 113°F)
    
    The maximum ambient temperature decreases by 1°C for every 125 m (410 ft) increase in altitude above 900 m (2,953 ft)
- Server off: 5°C to 45°C (41°F to 113°F)
- Shipment/storage: -40°C to 60°C (-40°F to 140°F)
Maximum altitude: 3,050 m (10,000 ft)
Relative Humidity (non-condensing):
- Operating
  - ASHRAE class H1: 8%–80%; maximum dew point: 17°C (62.6°F)
  - ASHRAE class A2: 8%–80%; maximum dew point: 21°C (70°F)
  - ASHRAE class A3: 8%–85%; maximum dew point: 24°C (75°F)
  - ASHRAE class A4: 8%–90%; maximum dew point: 24°C (75°F)
- Shipment/storage: 8% to 90%

Note

When the ambient temperature is greater than the supported max temperature, the server will shut down (ASHRAE 45°C). The server will not power on again until the ambient temperature falls within the supported temperature range.

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