Dell R720XD owner manual Expanded Operating Temperature

Expanded Operating Temperature

NOTE: When operating in the expanded temperature range, system performance may be impacted.

NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on the LCD and in the System Event Log.

< 10% of annual operating hours	5 °C to 40 °C at 5% to 85% RH with 26 °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 40 °C for a maximum of 10% of its annual
	operating hours.
	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).
< 1% of annual operating hours	–5 °C to 45 °C at 5% to 90% RH with 26 °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 dry bulb temperature by 1 °C per 125
	m above 950 m (1 °F per 228 ft).
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).
	• 130 W (4 core) processor is not supported.
	• Redundant power supplies are required.
	• Non Dell qualified peripheral cards and/or peripheral
	cards greater than 25 W are not supported.
	NOTE: For PowerEdge R720, maximum 130 W
	processor is supported in either 8 hard drive or 16
	hard drive chassis.
	NOTE: The following additional restrictions apply to
	PowerEdge R720xd.
	• Maximum 95 W processor supported on 3.5 inch hard
	drive chassis.
	• Maximum 115 W processor supported on 2.5 inch
	hard drive chassis.
	• Only SSDs are allowed in the hard drive slots at the
	back of the 3.5 inch hard drive chassis.

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