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Dell EMC PowerEdge R940: технические характеристики и спецификации
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Dell EMC PowerEdge R940: технические характеристики и спецификации

System dimensions

This section describes the physical dimensions of the system.
Figure 1. System dimensions of PowerEdge R940 systemThis image shows system dimensions of PowerEdgeR940 system.
Table 1. System dimensions of PowerEdge R940 system . The dimensions of PowerEdge R940 system are as follows: Xa=482.0 mm, Xb=434.0 mm, Y=130.3 mm, Za (with bezel) =35.0 mm, Za (without bezel) = 22.0 mm, Zb=726.2 mm, Zc=777.046 mm.
SystemXaXbYZa (with bezel)Za (without bezel)ZbZc
PowerEdge R940482.0 mm (18.9 inches)434.0 mm (17.08 inches)130.3 mm (5.13 inches)35.0 mm (1.37 inches)22.0 mm (0.86 inches)726.2 mm (28.59 inches)777.046 mm (30.59 inches)

System weight

Table 1. System weight of PowerEdge R940 system. For PowerEdge R940 system, the maximum chassis weight is 49.9 kg (110.01 lb).
System Maximum weight (with all hard drive/SSDs)
PowerEdge R940 49.9 kg (110.01 lb)

Cooling fan specifications

The PowerEdge R940 system supports up to eight standard or high performance hot swappable cooling fans.

Processor specifications

The PowerEdge R940 system supports two or four Intel Xeon Scalable Processors, up to 28 cores per socket.

PSU specifications

The PowerEdge R940 system supports up to two AC or DC power supply units (PSUs):
  • Two 2400 W, 2000 W, 1600 W, or 1100 W AC power supply units (PSUs)
  • Two 1100 W DC PSUs
  • Two 1100 W Mixed Mode HVDC PSUs
  • NOTE: The PowerEdge R940 system supports hot swappable PSUs.
  • CAUTION: If two PSUs are installed, both the PSUs must have the same type of label. For example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of PowerEdge servers is not supported, even if the PSUs have the same power rating. This results in a PSU mismatch condition or failure to turn the system on.
  • NOTE: Titanium PSU is nominally rated for 200 V AC to 240 V AC input only.
  • NOTE: When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs is put into the sleep mode when system utilization is low in order to maximize efficiency.
  • NOTE: If two PSUs are used, they must be of the same maximum output power.
Table 1. PSU specifications.

The table below are the specifications for 1100 W, 1600 W, 2000 W, and 2400 W power supplies:

PSU Class Heat dissipation (maximum) Frequency Voltage Power rating Current
1100 W AC Platinum 4100 BTU/hr 50/60 Hz 100–120 V AC, autoranging derated to 1050 W 12 A–6.5 A
200–240 V AC, autoranging 1100 W
1100 W DC N/A 4416 BTU/hr N/A –(48–60) V DC, autoranging 1100 W 32 A
1100 W Mixed Mode HVDC (for China and Japan only) Platinum 4100 BTU/hr 50/60 Hz 100–120 V AC, autoranging derated to 1050 W 12 A–6.5 A
N/A 4100 BTU/hr N/A 200–380 V DC, autoranging 1100 W 6.4 A–3.2 A
1600 W AC Platinum 6000 BTU/hr 50/60 Hz 100–120 V AC, autoranging derated to 800 W 10 A
200–240 V AC, autoranging 1600 W
2000 W AC Platinum 7500 BTU/hr 50/60 Hz 100–120 V AC, autoranging derated to 1000 W 11.5 A
200–240 V AC, autoranging 2000 W
2400 W AC Platinum 9000 BTU/hr 50/60 Hz 100-120 V AC, autoranging derated to 1400 W 16 A
200–240 V AC, autoranging 2400 W
  • NOTE: Heat dissipation is calculated using the PSU wattage rating.
  • NOTE: This system is also designed to connect to the IT power systems with a phase to phase voltage not exceeding 240 V.
  • NOTE: PSUs rated for 1600 W and higher require high-line voltage (200-240 V) to supply their rated capacity.

System battery specifications

The PowerEdge R940 system supports CR 2032 3.0-V lithium coin cell system battery.

Expansion bus specifications

The PowerEdge R940 system supports PCI express (PCIe) generation 3 expansion cards, which you can install on the expansion slots available on the system board. If you are using PowerEdge R940 system with four processor configuration, then you can also install the cards by using the expansion card riser. This system supports up to two expansion card risers. The following table provides the expansion card riser specifications:
Table 1. Expansion card slots supported on the system board . This table provides information about the expansion card slots supported on the PowerEdge R940 system board.
PCIe slot on the system board Processor connection PCIe slots on system board (Height) PCIe slots on system board (length) Link width Slot width
Slot 1 Processor 1 full height half length x8 x16
Slot 2 Processor 1 full height half length x16 x16
Slot 3 Processor 1 full height half length x16 x16
Slot 4 Processor 2 full height half length x16 x16
Slot 5 Processor 2 full height half length x8 x16
Slot 6 Processor 2 full height half length x8 x16
Slot 7 Processor 2 full height half length x16 x16
Table 2. Expansion card riser configurations . This table provides information about the expansion card riser configuration for PowerEdge R940 system.
Riser PCIe slot on the expansion card riser Processor connection PCIe slots on riser (Height) PCIe slots on riser (length) Link width Slot width
Riser 2 (IO_RISER2) Slot 8 Processor 3 full height 3/4 length x16 x16
Slot 9 Processor 3 full height half length x16 x16
Slot 10 Processor 3 full height half length x16 x16
Riser 3 (IO_RISER3) Slot 11 Processor 4 full height 3/4 length x16 x16
Slot 12 Processor 4 full height half length x16 x16
Slot 13 Processor 4 full height half length x16 x16

Memory specifications

Table 1. Memory specifications. The table below shows the memory specifications for the PowerEdge R940 system:
DIMM type DIMM rank DIMM capacity Dual processors Quad processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
LRDIMM Octal Rank 128 GB 256 GB 3,072 GB 512 GB 6,144 GB
LRDIMM Quad Rank 64 GB 128 GB 1,536 GB 256 GB 3,072 GB
RDIMM Dual Rank 32 GB 64 GB 768 GB 128 GB 1,536 GB
RDIMM Dual Rank 16 GB 32 GB 384 GB 64 GB 768 GB
RDIMM Single Rank 8 GB 16 GB 192 GB 32 GB 384 GB
NVDIMM-N Single Rank 16 GB 16 GB 192 GB Supported on the system board only (No NVDIMM-N on PEM)
  • NOTE: 8 GB RDIMM and NVDIMM-N must not be mixed.
  • NOTE: NVDIMM-N memory modules must be installed only on the memory sockets available on the system board.

Storage controller specifications

The PowerEdge R940 system supports:
  • Internal controllers: S140 (NVMe drives only), and NVMe PCIe SSD adapter.
  • Internal controllers: PowerEdge RAID Controller (PERC) H330, H730P, H740P Boot optimized storage subsystem.
  • External HBAs (RAID): H840
  • External HBAs (non-RAID): 12Gbps SAS HBA

Remote management port specifications

The PowerEdge R940 system supports one dedicated 1Gbe Ethernet port with optional card and up to two optional shared NIC ports.

Hard drives

The PowerEdge R940 system supports SAS, SATA, Nearline SAS, NVMe hard drives or SSDs.

Table 1. Supported drive options for the PowerEdge R940 system .

This table lists out the supported drive and SSD options for the PowerEdge R940 system:

Eight drives system Up to eight 2.5-inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 through 7
Twenty four drives system Up to twenty four 2.5-inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 through 23
Twenty four drives system Up to twenty SAS + 4 NVMe SAS/SATA drives in slots 0 to 19 + slots 20 to 23
Twenty four drives system Up to sixteen SAS + 8 NVMe SAS/SATA drives in slots 0 to 15 + slots 16 to 23

USB ports

The PowerEdge R940 system supports:
  • Two USB 3.0-compliant ports on the front panel
  • Two USB 3.0-compliant ports on the back panel
  • One USB 3.0-compliant internal port

An optional USB memory key installed inside your system can be used as a boot device, security key, or mass storage device. To boot from the USB memory key, configure the USB memory key with a boot image and then specify the USB memory key in the boot sequence in System Setup.

NIC ports

The PowerEdge R940 system supports up to four NDC ports on the back panel, which are available in the following configurations:
  • Four RJ-45 ports that support 10, 100, and 1000 Mbps
  • Four RJ-45 ports that support 100 M, 1 G and 10 Gbps
  • Four RJ-45 ports, where two ports support maximum of 10 G and the other two ports maximum of 1 G
  • Two RJ-45 ports that support up to 1 Gbps and 2 SFP+ ports that support up to 10 Gbps
  • Four SFP+ ports that support up to 10 Gbps
  • Two SFP28 ports that support up to 25 Gbps

Serial port

The PowerEdge R940 system supports one serial port on the back panel, which is a 9-pin connector, Data Terminal Equipment (DTE), 16550-compliant.

Internal Dual SD Module or vFlash card

The PowerEdge R940 system supports Internal Dual SD module (IDSDM) and vFlash card. In 14th generation of PowerEdge servers, IDSDM and vFlash card are combined into a single card module, and are available in these configurations:

  • vFlash or
  • IDSDM or
  • vFlash and IDSDM

The IDSDM/vFlash card sits in the back of the system, in a Dell-proprietary slot. IDSDM/vFlash card supports three micro SD cards (two cards for IDSDM and one card for vFlash). Micro SD cards capacity for IDSDM are 16/32/64 GB while for vFlash the microSD card capacity is 16 GB.

  • NOTE: The write-protect switch is on the IDSDM or vFlash module.

VGA ports

The PowerEdge R940 system supports two 15-pin VGA ports. One of the VGA ports is located on the front of the system and the other port is located on the back of the system.

Video specifications

The PowerEdge R940 system supports integrated Matrox G200eW3 graphics controller with 16 MB of video frame buffer.
Table 1. Resolution information for video modes . The following table provides resolution information for video modes.
Resolution Refresh rate (Hz)
1024 x 768 60
1280 x 800 60
1280 x 1024 60
1360 x 768 60
1440 x 900 60
1600 x 900 60 (RB)
1600 x 1200 60
1680 x 1050 60 (RB)
1920 x 1080 60
1920 x 1200 60

Environmental specifications

  • NOTE: For additional information about environmental certifications, please refer to the Product Environmental Datasheet located with the Manuals & Documents on Dell.com/poweredgemanuals .
Table 1. Temperature specifications . When the system is in continuous operation (for altitude less than 950 m or 3117 ft), the temperature specification ranges from 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment. NOTE: Maximum of 145 W 22 core processor is supported in systems with eight 2.5-inches drives, two PCI slot chassis, and 75 W single wide active GPU. When the system is not in operation, the temperature specification is –40°C to 65°C (–40°F to 149°F). The Maximum temperature gradient for both opertaion and non-opertaional systems is 20°C/h (36°F/h).
Temperature Specifications
Storage –40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or 3117 ft) 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Maximum temperature gradient (operating and storage) 20°C/h (68°F/h)
Table 2. Relative humidity specifications . For a non-operational system, the ambient relative humidity ranges from 5% to 95% with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. For an operational system, the ambient relative humidity ranges from 10% to 80% with 29°C (84.2°F) maximum dew point.
Relative humidity Specifications
Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times.
Operating 10% to 80% relative humidity with 26°C (78.8°F) maximum dew point.
Table 3. Maximum vibration specifications . The maximum vibration specification of an operational system is 0.26 Grms at 5 Hz to 350 Hz (all operation orientations).The maximum vibration specification of a non-operational system is 1.87 Grms at 10 Hz to 500 Hz for 15 min (all six sides tested).
Maximum vibration Specifications
Operating 0.26 G rms at 5 Hz to 350 Hz (all operation orientations).
Storage 1.87 G rms at 10 Hz to 500 Hz for 15 min (all six sides tested).
Table 4. Maximum shock specifications . The maximum shock specification of an operational system is six consecutively executed shock pulses in the positive and negative x, y, and z axes of 6 G for up to 11 ms. The maximum shock specification of a non-operational system is six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Maximum shock Specifications
Operating Six consecutively executed shock pulses in the positive and negative x, y, and z axes of 6 G for up to 11 ms.
Storage Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Table 5. Maximum altitude specifications . The maximum altitude specification for an operational system is 3048 m (10,000 ft). The maximum altitude specification for a non-operational system is 12,000 m (39,370 ft).
Maximum altitude Specifications
Operating

3048 m ( 10,000 ft)

Storage 12,000 m (39,370 ft)
Table 6. Operating temperature de-rating specifications . If the operating temerature of a system is up to 35 °C (95 °F), the maximum temperature is reduced by 1 °C/300 m (1 °F/547 ft) above 950 m (3,117 ft). If the operating temperature of a system ranges from 35 °C to 40 °C (95 °F to 104 °F), the maximum temperature is reduced by 1 °C/175 m (1 °F/319 ft) above 950 m (3,117 ft). If the operating temperature of a system ranges from 40 °C to 45 °C (104 °F to 113 °F), the maximum temperature is reduced by 1 °C/125 m (1 °F/228 ft) above 950 m (3,117 ft).
Operating temperature de-rating Specifications
Up to 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 m (3,117 ft).
35°C to 40°C (95°F to 104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 m (3,117 ft).
40°C to 45°C (104°F to 113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 m (3,117 ft).

Particulate and gaseous contamination specifications

The following table defines the limitations that help avoid any equipment damage or failure from particulates and gaseous contamination. If the levels of particulates or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to rectify the environmental conditions. Re-mediation of environmental conditions is the responsibility of the customer.
Table 1. Particulate contamination specifications . Air filtration specification: Data center air filtration as defined by ISO Class 8 per ISO 14644-1 shpuld have a 95% upper confidence limit. Note: This condition applies only to data center environments. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor. Note: Air entering the data center must have MERV11 or MERV13 filtration. Conductive dust specification: Air must be free of conductive dust, zinc whiskers, or other conductive particles. Note: This condition applies to data center and non-data center environments. Corrosive dust specification: Air must be free of corrosive dust. Residual dust present in the air must have a deliquescent point less than 60% relative humidity. Note: This condition applies to data center and non-data center environments.
Particulate contamination Specifications
Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit.
  • NOTE: This condition applies to data center environments only. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor.
  • NOTE: Air entering the data center must have MERV11 or MERV13 filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other conductive particles.
  • NOTE: This condition applies to data center and non-data center environments.
Corrosive dust
  • Air must be free of corrosive dust.
  • Residual dust present in the air must have a deliquescent point less than 60% relative humidity.
  • NOTE: This condition applies to data center and non-data center environments.
Table 2. Gaseous contamination specifications . The copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985. The silver coupon corrosion rate is <200 Å/month as defined by AHSRAE TC9.9.
Gaseous contamination Specifications
Copper coupon corrosion rate <300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
Silver coupon corrosion rate <200 Å/month as defined by AHSRAE TC9.9.
  • NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.

Standard operating temperature

Table 1. Standard operating temperature specifications . The standard operating temperature for altitude less than 950 metres or 3117 feet ranges from 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment. Note: The 2.5-inch hard drive chassis supports a maximum of 145 W processors.
Standard operating temperature Specifications
Continuous operation (for altitude less than 950 m or 3117 ft) 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Humidity percentage range 10% to 80% Relative Humidity with 26°C (78.8°F) maximum dew point.

Expanded operating temperature

Table 1. Expanded operating temperature specifications . When the system is in continuous operation, the expanded operating temperature ranges from 5°C to 40°C at 5% to 85% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C. For temperatures between 35°C and 40°C, de-rate maximum allowable dry bulb temperature by 1°C per 175 m above 950 m (1°F per 319 ft). When the system is operating at < 1% of annual operating hours, the expanded operating temperature is –5°C to 45°C at 5% to 90% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours. For temperatures between 40°C and 45°C, de-rate maximum allowable temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
Expanded operating temperature Specifications
Continuous operation 5°C to 40°C at 5% to 85% RH with 29°C dew point.
  • NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C.

For temperatures between 35°C and 40°C, de-rate maximum allowable dry bulb temperature by 1°C per 175 m above 950 m (1°F per 319 ft).

Less than or equal to 1% of annual operating hours –5°C to 45°C at 5% to 90% RH with 29°C dew point.
  • NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours.

For temperatures between 40°C and 45°C, de-rate maximum allowable temperature by 1°C per 125 m above 950 m (1°F per 228 ft).

  • NOTE: When operating in the expanded temperature range, system performance may be impacted.
  • NOTE: When operating in the expanded temperature range, ambient temperature warnings maybe reported on the LCD panel and in the System Event Log.

Expanded operating temperature restrictions

  • Do not perform a cold startup below 5°C.
  • The operating temperature specified is for a maximum altitude of 3050 m (10,000 ft).
  • 150 W/8 core or higher wattage processor [Thermal Design Power (TDP)>165 W] is not supported.
  • Redundant power supply unit is required.
  • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
  • NVMe drives are not supported.
  • NVDIMMs are not supported.

Thermal restrictions

Following table lists the configuration required for efficient cooling:

Table 1. Thermal restriction for efficient cooling. Following table describes the configuration required for efficient cooling.
Configuration Number of processors Heatsink Processor blank DIMM blanks Fresh air Fan
Eight 2.5 inch hard drive system 2 Two heat sinks for CPU < 165W Not required 12 Yes eight standard fans

Two heat sinks for CPU ≥ 165 W

 No
  4 Four standard heat sinks for CPU < 165 W Not required 24 Yes eight standard fans
Four heat sinks CPU ≥ 165 W No
Twenty four 2.5 inch hard drive system 2 Two standard heat sinks for CPU < 165W Not required 12 Yes eight standard fans
Two heat sinks for CPU ≥ 165 W No
4 Four standard heat sinks for CPU < 165 W Not required 24 Yes eight standard fans
Four heat sinks for CPU ≥ 165 W No
Table 2. NIC card slot restrictions. Following table describes the NIC card slot restrictions.
Configuration Slot restriction Ambient restriction
Eight 2.5-inch hard drive system Slots 1, 5, and 6 do not support NIC cards 35°C
Twenty four 2.5-inch hard drive system Slots 1, 5, and 6 do not support NIC cards 35°C