Dell PowerEdge T640 EMC Technical Specifications - Page 12

Expanded operating temperature restrictions and Fresh Air restrictions

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Expanded operating temperature ≤ 1% of annual operating hours Specifications 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 temperature by 1°C per 175 m above 950 m (1°F per 319 ft). -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 in the System Event Log. Expanded operating temperature restrictions and Fresh Air restrictions • Six hot swappable fans (standard fans) are required. • Two PSUs in redundancy mode are required, but PSU failure is not supported. • 3.5-inch x 18 hard drives is not supported. • NVMe or PCIe SSD is not supported. • GPGPU is not supported. • Processor > 165 W is not supported. • Internal TBU (tape backup drive) is not supported. • Non-Dell qualified peripheral cards are not supported. • Peripheral cards consuming greater than 25 W are not supported. • 128 GB LRDIMM is supported. • NVDIMM is not supported. • Mellanox 100 GB, Mellanox Navi DP/SP, Intel FortPond Solarflare Nova, Solarflare Sunspot are not supported. Particulate and gaseous contamination specifications The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer. Table 16. Particulate contamination specifications Particulate contamination Air filtration Specifications Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit. NOTE: The ISO Class 8 condition applies to data center environments only. This air filtration requirement does 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. 12 Technical specifications

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Expanded operating temperature
Specifications
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
temperature by 1°C per 175 m above 950 m (1°F per 319 ft).
≤ 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 in the
System Event Log.
Expanded operating temperature restrictions and Fresh Air
restrictions
•
Six hot swappable fans (standard fans) are required.
•
Two PSUs in redundancy mode are required, but PSU failure is not supported.
•
3.5-inch x 18 hard drives is not supported.
•
NVMe or PCIe SSD is not supported.
•
GPGPU is not supported.
•
Processor > 165 W is not supported.
•
Internal TBU (tape backup drive) is not supported.
•
Non-Dell qualified peripheral cards are not supported.
•
Peripheral cards consuming greater than 25 W are not supported.
•
128 GB LRDIMM is supported.
•
NVDIMM is not supported.
•
Mellanox 100 GB, Mellanox Navi DP/SP, Intel FortPond Solarflare Nova, Solarflare Sunspot are not supported.
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If
the levels of particulate or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to
rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
Table 16. Particulate contamination specifications
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:
The ISO Class 8 condition applies to data center
environments only. This air filtration requirement does 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.
12
Technical specifications