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
Acoustic modes and ambient temperature
Environment

Acoustical noise emissions
The server has the following acoustic noise emissions declaration: Sound power level (L_WAd) Idling: Minimum: 5.5 Bel GPU Rich: 5.5 Bel Storage Rich: 5.8 Bel Operating profile 1: Minimum: 5.5 Bel GPU Rich: 5.5 Bel Storage Rich: 5.8 Bel Operating profile 2: Minimum: 5.5 Bel GPU Rich: 7.4 Bel Storage Rich: 6.0 Bel Sound pressure level (L_pAm): Idling: Minimum: 39.0 dBA GPU Rich: 39.0 dBA Storage Rich: 42.8 dBA Operating profile 1: Minimum: 39.0 dBA GPU Rich: 39.0 dBA Storage Rich: 42.8 dBA Operating profile 2: Minimum: 39.0 dBA GPU Rich: 58.2 dBA Storage Rich: 44.6 dBA Note These sound levels were measured in controlled acoustical environments according to procedures specified by ISO7779 and are reported in accordance with ISO 9296. Operating profile 1 is represented by 50% CPU TDP. Operating profile 2 is represented by 100% CPU TDP or 70%/30% storage write/read or 100% GPU. Testing was conducted at 23°C ± 2°C to align with ISO7779 procedures. The declared acoustic sound levels are based on the specified configurations, which may change depending on configuration/conditions. Minimum: 1x AMD EPYC 8024P (8 core, 90W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for M.2 RAID, 4x ThinkSystem 2.5" 5400 MAX 3.84TB Mixed Use SATA 6Gb HS SSD data drives with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for SATA RAID, 2x AC PSU 1100W GPU Rich: 1x AMD EPYC 8224P (24 core, 160W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for M.2 RAID, 4x ThinkSystem 2.5" 5400 MAX 3.84TB Mixed Use SATA 6Gb HS SSD data drives with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for SATA RAID, 4x ThinkSystem NVIDIA L4 24GB PCIe Gen4 Passive GPU, 2x AC PSU 1100W Storage Rich: 1x AMD EPYC 8124P (16 core, 125W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-Port PCIe Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with M.2 RAID B540i-2i adapter for M.2 RAID, 8x ThinkSystem 2.5" 5400 PRO 7.68TB Read Intensive SATA 6Gb HS SSD, 2x AC PSU 1100W 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.

Acoustical noise emissions

The server has the following acoustic noise emissions declaration:

Sound power level (L_WAd)
- Idling:
  - Minimum: 5.5 Bel
  - GPU Rich: 5.5 Bel
  - Storage Rich: 5.8 Bel
- Operating profile 1:
  - Minimum: 5.5 Bel
  - GPU Rich: 5.5 Bel
  - Storage Rich: 5.8 Bel
- Operating profile 2:
  - Minimum: 5.5 Bel
  - GPU Rich: 7.4 Bel
  - Storage Rich: 6.0 Bel
Sound pressure level (L_pAm):
- Idling:
  - Minimum: 39.0 dBA
  - GPU Rich: 39.0 dBA
  - Storage Rich: 42.8 dBA
- Operating profile 1:
  - Minimum: 39.0 dBA
  - GPU Rich: 39.0 dBA
  - Storage Rich: 42.8 dBA
- Operating profile 2:
  - Minimum: 39.0 dBA
  - GPU Rich: 58.2 dBA
  - Storage Rich: 44.6 dBA

Note

These sound levels were measured in controlled acoustical environments according to procedures specified by ISO7779 and are reported in accordance with ISO 9296. Operating profile 1 is represented by 50% CPU TDP. Operating profile 2 is represented by 100% CPU TDP or 70%/30% storage write/read or 100% GPU. Testing was conducted at 23°C ± 2°C to align with ISO7779 procedures.
The declared acoustic sound levels are based on the specified configurations, which may change depending on configuration/conditions.
- Minimum: 1x AMD EPYC 8024P (8 core, 90W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for M.2 RAID, 4x ThinkSystem 2.5" 5400 MAX 3.84TB Mixed Use SATA 6Gb HS SSD data drives with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for SATA RAID, 2x AC PSU 1100W
- GPU Rich: 1x AMD EPYC 8224P (24 core, 160W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for M.2 RAID, 4x ThinkSystem 2.5" 5400 MAX 3.84TB Mixed Use SATA 6Gb HS SSD data drives with 1x ThinkSystem RAID 5350-8i PCIe 12Gb Adapter for SATA RAID, 4x ThinkSystem NVIDIA L4 24GB PCIe Gen4 Passive GPU, 2x AC PSU 1100W
- Storage Rich: 1x AMD EPYC 8124P (16 core, 125W) CPU, 1x 2U heat sink, 4x ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMMs, 1x ThinkSystem Intel X710-T2L 10GBASE-T 2-Port PCIe Ethernet Adapter, 2x 5400 Pro 2280 M.2 SATA SSD 960GB boot drive with M.2 RAID B540i-2i adapter for M.2 RAID, 8x ThinkSystem 2.5" 5400 PRO 7.68TB Read Intensive SATA 6Gb HS SSD, 2x AC PSU 1100W
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.

Acoustic modes and ambient temperature
Depending on the selected acoustic mode, specific components require proper ambient temperature to prevent performance degradation. ThinkEdge SE455 V3 supports three acoustic modes with different acoustic performance. Disabled: The server operates at default fan speeds. Mode 1: The server operates with sound pressure level of 45 dBA at 25°C or lower ambient temperature with proper configuration. Mode 2: The server operates with sound pressure level of 40 dBA at 25°C or lower ambient temperature with proper configuration. Note For Acoustic mode 1 and mode 2: 2U heat sink is necessary. Throttling might momentarily occur. To change the acoustic mode, enter the Setup Utility and go to System settings > Operating Modes > Acoustic mode. See the corresponding table for more information of different acoustic modes and ambient temperature: Acoustic mode Disabled Acoustic mode 1 Acoustic mode 2

Table 1. Acoustic mode Disabled
Component		Maximum ambient temperature
The components not listed in this table are recommended to operate with ambient temperature lower than 55°C. If the ambient temperature is the maximum ambient temperature, performance degradation or thermal throttling might occur.
Processor
	AMD EPYC 8124P processor	50°C
	AMD EPYC 8434PN, 8534PN processor with PCIe riser 2 installed Note In configurations without PCIe riser 2, AMD EPYC 8434PN/8534PN processor supports ambient temperature up to 55°C.	50°C
	AMD EPYC 8224P, 8324P, 8434P, 8534P processor	45°C
Memory modules
	64GB	50°C
	96GB	45°C
PCIe adapters
	Single-wide GPU adapter can operate with ambient temperature lower than 55°C. When ambient temperature is 45°C to 55°C, for a single-wide GPU adapter, power may be limited for sustained load.
	ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter ThinkSystem Broadcom 57508 100GbE QSFP56 2-port PCIe 4 Ethernet Adapter ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-port PCIe Ethernet Adapter ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter	50°C
	Accelerator	45°C
	Double-wide GPU adapter	40°C
OCP module
	ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter	50°C
Front NVMe drives
	U.2 P5520 SSD (3.84TB or smaller) U.2 P5620 SSD (3.2TB or smaller) U.3 7450 PRO SSD (1.92TB or smaller) U.3 7450 MAX SSD (800GB) U.3 7500 MAX SSD (3.2TB or larger) U.3 7500 PRO SSD (3.84TB or larger)	50°C
	U.2 P5336 SSD U.2 P5520 SSD (7.68TB or larger) U.2 P5620 SSD (6.4TB or larger)	45°C
	U.3 7450 PRO SSD (3.84TB or larger) U.3 7450 MAX SSD (1.6TB or larger)	35°C
Internal SAS/SATA drives		45°C
Internal NVMe drives
	U.3 7500 MAX SSD (1.6TB or smaller) U.3 7500 PRO SSD (1.92TB or smaller)	50°C
	U.3 7500 MAX SSD (3.2TB or larger) U.3 7500 PRO SSD (3.84TB or larger)	40°C
	U.3 7450 PRO SSD (1.92TB or smaller) U.3 7450 MAX SSD (800GB) U.2 P5520 SSD (3.84TB or smaller) U.2 P5620 SSD (3.2TB or smaller) The following internal NVMe drives might be throttled when ambient temperature is higher than 30°C: U.2 P5520 SSD (7.68TB) U.2 P5620 SSD (6.4TB)	35°C
	U.2 P5336 SSD	25°C
	The following NVMe drives of specific capacity are not supported as internal drives: U.2 P5520 SSD (15.36TB) U.2 P5620 SSD (12.8TB) U.3 7450 PRO SSD (3.84TB or larger) U.3 7450 MAX SSD (1.6TB or larger)	Not applicable
M.2 SATA drives		50°C
M.2 NVMe drives		45°C

Table 2. Acoustic mode 1
In Acoustic mode 1, the server operates with sound pressure level of 45 dBA at 25°C or lower ambient temperature with proper configuration. 2U heat sink is necessary. Throttling might momentarily occur. See the following information for configurations supported in Acoustic mode 1. Note When one of the components listed as "not recommended" is installed, system fan speed will impact acoustic performance. However, if the not-recommended component is lightly loaded, it may still be possible to run the server in the acoustic mode and lower the system noise.
Processor	AMD EPYC 8024P, 8124P processor AMD EPYC 8024PN, 8124PN, 8224PN, 8324PN processor
Memory modules	16, 32, 48GB
PCIe adapters	Supports up to two single-wide GPU adapters; the power of GPU adapters may be limited for sustained load. The following GPU adapters are supported: ThinkSystem NVIDIA L4 24GB PCIe Gen4 Passive GPU ThinkSystem NVIDIA A2 16GB PCIe Gen4 Passive GPU ThinkSystem NVIDIA A2 16GB PCIe Gen4 Passive GPU w/o CEC RAID adapter and Ethernet adapter are supported.
Front SAS/SATA drives	Supported
Front NVMe drives	U.2 P5520 SSD (3.84TB or smaller) U.2 P5620 SSD (3.2TB or smaller) U.3 7450 PRO SSD (1.92TB or smaller) U.3 7500 PRO SSD U.3 7450 MAX SSD (800GB) U.3 7500 MAX SSD
Internal SAS drives	Not recommended
Internal SATA drives	Supported
Internal NVMe drives	Not recommended
M.2 SATA drives	Supported
M.2 NVMe drives	Not recommended

Table 3. Acoustic mode 2
In Acoustic mode 2, the server operates with sound pressure level of 40 dBA at 25°C or lower ambient temperature with proper configuration. 2U heat sink is necessary. Throttling might momentarily occur. See the following information for configurations supported in Acoustic mode 2. Note When one of the components listed as "not recommended" is installed, system fan speed will impact acoustic performance. However, if the not-recommended component is lightly loaded, it may still be possible to run the server in the acoustic mode and lower the system noise.
Processor	AMD EPYC 8024P processor AMD EPYC 8024PN, 8124PN processor
Memory modules	16, 32, 48GB
PCIe adapters	GPU adapter and accelerator are not recommended. RAID adapter and Ethernet adapter are supported, except for ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter.
Front SAS/SATA drives	Supported
Front NVMe drives	U.2 P5520 SSD (3.84TB or smaller) U.2 P5620 SSD (3.2TB or smaller) U.3 7450 PRO SSD (1.92TB or smaller) U.3 7500 PRO SSD U.3 7450 MAX SSD (800GB) U.3 7500 MAX SSD
Internal SAS/SATA drives	Not recommended
Internal NVMe drives	Not recommended
M.2 SATA drives	Supported
M.2 NVMe drives	Not recommended

Environment
ThinkEdge SE455 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 operating temperature is outside AHSARE A2 specification. Air temperature: Operating ASHARE 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). ASHARE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient temperature decreases by 1°C for every 175m (574 ft) increase in altitude above 900 m (2,953 ft). ASHARE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient temperature decreases by 1°C for every 125m (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) Extended operation temperature (with limited configuration): Server on: 5°C to 55°C (41°F to 131°F) Server off: 5°C to 55°C (41°F to 131°F) Note See Acoustic modes and ambient temperature for the supported components at different ambient temperature. Maximum rate of change(°C/hr) should be ≤ 20. Maximum altitude: 3,050 m (10,000 ft) at operating temperature 5°C to 45°C Relative Humidity (non-condensing): Operating temperature 5°C to 45°C: 8% to 90% ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F) ASHRAE Class A3: 8% to 85%; maximum dew point: 24°C (75°F) ASHRAE Class A4: 8% to 90%; maximum dew point: 24°C (75°F) Extended operation temperature (with limited configuration) 50 °C to 55 °C: 5% to 90%; maximum dew point: 24°C (75°F) Shipment/storage: 8% to 90% Humidity transition rate should be ≤10%/hr. Particulate contamination SE455 V3 supports use of a dust filter that is installed inside the security bezel. The dust fitler has a Minimum Efficiency Rating Value (MERV) of 2, per ASHRAE Standard 52.2-2017. 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.

Environment

ThinkEdge SE455 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 operating temperature is outside AHSARE A2 specification.

Air temperature:
- Operating
  - ASHARE 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).
  - ASHARE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient temperature decreases by 1°C for every 175m (574 ft) increase in altitude above 900 m (2,953 ft).
  - ASHARE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient temperature decreases by 1°C for every 125m (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)
- Extended operation temperature (with limited configuration):
  - Server on: 5°C to 55°C (41°F to 131°F)
  - Server off: 5°C to 55°C (41°F to 131°F)
  Note
  See Acoustic modes and ambient temperature for the supported components at different ambient temperature.
- Maximum rate of change(°C/hr) should be ≤ 20.
Maximum altitude: 3,050 m (10,000 ft) at operating temperature 5°C to 45°C
Relative Humidity (non-condensing):
- Operating temperature 5°C to 45°C: 8% to 90%
  - ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
  - ASHRAE Class A3: 8% to 85%; maximum dew point: 24°C (75°F)
  - ASHRAE Class A4: 8% to 90%; maximum dew point: 24°C (75°F)
- Extended operation temperature (with limited configuration) 50 °C to 55 °C: 5% to 90%; maximum dew point: 24°C (75°F)
- Shipment/storage: 8% to 90%
- Humidity transition rate should be ≤10%/hr.
Particulate contamination
- SE455 V3 supports use of a dust filter that is installed inside the security bezel. The dust fitler has a Minimum Efficiency Rating Value (MERV) of 2, per ASHRAE Standard 52.2-2017.
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.

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