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

Attention

Environment quality must be maintained over the lifetime of the system to receive warranty and support on affecting components. For water quality requirement, see Lenovo Neptune Direct Water-Cooling Standards.

Acoustical noise emissions

The server has the following acoustic noise emissions declaration.

 MinimalTypicalStorageGPU
Sound power levels (LWAd)
Idling5.9 Bel6.5 Bel7.3 Bel7.3 Bel
Operating6.5 Bel8.1 Bel7.5 Bel8.7 Bel
Sound pressure level (LpAm) 
Idling41.5 dBA51 dBA60.2 dBA60.2 dBA
Operating48.3 dBA66.6 dBA61.3 dBA71.9 dBA

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

Config.MinimalTypicalStorageGPU
Chassis (2U)Front 8 x 2.5''Front 16 x 2.5''Front 12 x 3.5'' + rear 4 x 2.5''Front 16 x 2.5''
Fan6 x standard fans6 x high performance fans6 x high performance fans6 x high performance fans
Processor2 x 240 W2 x 300 W2 x 240 W2 x 300 W
DIMM12 x 64 GB24 x 64 GB12 x 64 GB24 x 64 GB
Drive8 x 2.4 TB SAS HDDs16 x 2.4 TB SAS HDDsFront 12 x 14 TB + rear 4 x 2 TB SAS HDDs16 x 2.4 TB SAS HDDs
RAID1 x RAID 940-8i1 x RAID 940-8i1 x RAID 940-16i1 x RAID 940-16i
OCP1 x Intel E810-DA2 10/25GbE SFP28 2-Port OCP
PSU2 x 1100 W2 x 1800 W2 x 1800 W2 x 2400 W
GPUNoneNoneNone3 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 SR665 V3 complies with ASHRAE Class A2 specifications with most configurations, and depending on the hardware configuration, also complies with ASHRAE Class A3 and Class A4 specifications. System performance may be impacted when the operating temperature is outside ASHRAE A2 specification.

Depending on the hardware configuration, SR665 V3 server also complies with ASHRAE Class H1 specification. System performance may be impacted when the operating temperature is outside ASHRAE H1 specification.

The restrictions to ASHRAE support are as follows (cooling by air):
  • The ambient temperature must be limited to 35°C or lower if the server has any of the following components:

    • Broadcom 57416 10GBASE-T 2-port OCP

    • Broadcom 57454 10GBASE-T 4-port OCP

    • Network interface cards (NICs) at a rate greater than or equal to 100 GB

    • Parts with AOC and at the rate of 25 GB

  • The ambient temperature must be limited to 30°C or lower if the server has any of the following components:

    • 24 x 2.5" or 12 x 3.5" front bay with middle or rear bay

    • GPU (except front 24 x 2.5" configurations and configurations with Group E processors)

    • Parts with AOC and at a rate greater than 25 GB

    • 9654(P)/9554(P)/9174F/9754/9734/9684X/9555/9655 processors using performance heat sinks in a front 8 x 2.5"/8 x 3.5"/16 x 2.5" standard configuration.

    • Group E processors using advanced heat sinks in a front 12 x 3.5"/24 x 2.5" configuration without middle/rear bay

  • The ambient temperature must be limited to 25°C or lower if the server has any of the following components:

    • 9274F/9374F/9474F/9575F using performance heat sinks in a front 8 x 2.5"/8 x 3.5"/16 x 2.5" standard configuration

    • 9654(P)/9554(P)/9174F/9754/9734/9555/9655 using performance heat sinks in a front 24 x 2.5" configuration without middle/rear bay

    • 9654(P)/9554(P)/9174F/9754/9734/9684X/9555/9655 in a front 8 x 2.5"/8 x 3.5"/16 x 2.5" + GPU configuration

    • 24 x 2.5" front bay + GPU

    • Gen5 7.68 TB or larger capacity NVMe in a configuration with middle/rear bay

    • Group A (240 W < cTDP ≤ 300 W) processor in a configuration with middle/rear bay

    • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v1

    • H100 NVL GPU adapter

The restrictions to ASHRAE support are as follows (cooling by Direct Water Cooling Module (DWCM)):
  • The ambient temperature must be limited to 35°C or lower if the server has any of the following components:

    • Broadcom 57416 10GBASE-T 2-port OCP

    • Broadcom 57454 10GBASE-T 4-port OCP

    • Network interface cards (NICs) at a rate greater than or equal to 100 GB

    • Parts with AOC and at the rate of 25 GB

  • The ambient temperature must be limited to 30°C or lower if the server has any of the following components:

    • Gen5 7.68 TB or larger capacity NVMe in a configuration with middle/rear bay

    • three 300 W or 350 W GPUs installed in a configuration with 16 x 2.5" or 8 x 3.5" front bay

    • three 300 W GPUs installed in an 8 x 2.5" + FIO or 16 x 2.5" + FIO configuration

    • three H100/L40S GPUs installed in a configuration with 24 x 2.5" front bay or in an 8 x 2.5" + FIO or 16 x 2.5" + FIO configuration

    • ThinkSystem 96GB TruDDR5 4800MHz (2Rx4) RDIMM-A installed in a GPU configuration

    • ThinkSystem 128GB TruDDR5 4800MHz (4Rx4) 3DS RDIMM-A v1 installed in a GPU configuration

    • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v1 installed in a standard configuration with standard fans or a storage configuration with 24 x 2.5" front bay and standard fans

    • parts with AOC and at a rate greater than 25 GB

    • H100 NVL GPU adapter

  • The ambient temperature must be limited to 25°C or lower if the server has any of the following components:

    • three A40 or L40 GPUs installed in a configuration with 24 x 2.5" front bay or in an 8 x 2.5" + FIO or 16 x 2.5" + FIO configuration

    • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v1 installed in a configuration with 12 x 3.5" front bay and performance fans

For detailed thermal information, see Thermal rules.

Note
When the ambient temperature is greater than the supported max temperature (ASHARE A4 45°C), the server will shut down. The server will not power on again until the ambient temperature falls within the supported temperature range.

  • 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%

Water requirements​

Water requirements
ThinkSystem SR665 V3 is supported in the following environment:

  • Maximum pressure: 3 bars

  • Water inlet temperature and flow rates:
    Water inlet temperatureWater flow rate
    50°C (122°F)1.5 liters per minute (lpm) per server
    45°C (113°F)1 liter per minute (lpm) per server
    40°C (104°F) or lower0.5 liters per minute (lpm) per server
Attention
The water required to initially fill the system side cooling loop must be reasonably clean, bacteria-free water (<100 CFU/ml) such as de-mineralized water, reverse osmosis water, de-ionized water, or distilled water. The water must be filtered with an in-line 50 micron filter (approximately 288 mesh). The water must be treated with anti-biological and anti-corrosion measures. Environment quality must be maintained over the lifetime of the system to receive warranty and support on affecting components. For more information please see Lenovo Neptune Direct Water-Cooling Standards.
  • 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.
  • Water quality requirement