Dell PowerEdge R640 EMC PowerEdge R640 Technical Specifications - Page 15

Ambient temperature limitations The following table lists configurations that require ambient temperature less than 35°C. NOTE: The ambient temperature limit must be adhered to ensure proper cooling and to avoid excess processor throttling, which may impact system performance. Table 18. Configuration based ambient temperature restrictions System Front Backplane Processor Thermal Processor Heat Design Power Sink PowerEdge R640 10 x 2.5 inch SAS/ SATA hard drives 200 W, 205 W 2 pipe 1U high performance 8 x 2.5 inch SAS/ SATA hard drives 4 x 3.5 inch SAS/ SATA hard drives Fan Type High performance fan Ambient Restriction 30°C 10 x 2.5 inch SAS/ SATA and NVMe drives(4, 8, or 10) 165 W 200 W, 205 W 2 pipe 1U standard 2 pipe 1U high performance High performance fan 30°C 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 19. 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: 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 the 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 20. Gaseous contamination specifications Gaseous contamination Specifications Copper coupon corrosion rate