Dell PowerEdge T140 EMC Technical Specifications - Page 13

• The operating temperature specified is for a maximum altitude of 3048 m (10,000 ft). • One non-redundant power supply unit is required. • One system fan required. • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. • GPU is not supported. • Tape backup unit is not supported. • For a system with 4 TB (or more) drive capacity, PERC is required for thermal control. Particulate and gaseous contamination specifications The following table defines the limitations that help avoid any damages to the IT equipment and/or, or both failure from particulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and results in equipment damage or failure, you must rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer. Table 19. 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: 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 nondata 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 nondata center environments. Table 20. Gaseous contamination specifications Gaseous contamination Copper Coupon Corrosion Silver Coupon Corrosion Specifications