Specifications

53 PowerEdge R720 and R720xd Technical Guide
Table 31 lists power supply specifications for the PowerEdge R720 and R720xd.
Specification
1100W DC
1100W AC
750W AC
495W AC
Current
consumption
32A (X2)
12A–6.5A
10A–5A
6.5A–3A
Supply voltage
-48V to -60V de CC
100–240VAC
1
100–240VAC
1
100–240VAC
1
Frequency
-48V to -60V de CC
50/60Hz
50/60Hz
50/60Hz
Heat dissipation
(BTU/hr max.)
4416
4100
2891
1908
1
Auto-ranging
Table 32 details the environmental specifications for the R720 and R720xd. For the most up-to-date
information, see the PowerEdge R720 and R720xd Systems Owner’s Manual and the PowerEdge
R720 and R720xd Getting Started Guide on Support.Dell.com/Manuals. For additional information
about environmental measurements for specific system configurations, see
Dell.com/environmental_datasheets.
Temperature and humidity
Continuous
operation
10°C to 35°C at 10% to 80% relative humidity (RH), with 26°C max dew point. De-rate
maximum allowable dry bulb temperature at 1 °C per 300m above 900 m (1 °F per
550 ft). When using the PowerEdge R720 with internal GPU card(s), the continuous
operation range is 10°C to 30°C at 10% to 80% RH, with 26 °C max dew point.
Expanded
operation
When operating in the expanded temperature range, system performance may be
impacted. When operating in the expanded temperature range, ambient temperature
warnings may be reported on the LCD (R720 only) 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. 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 950m (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.
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 125m above 950m (1°F per 228ft).
Expanded operating temperature restrictions:
 Do not perform a cold startup below 5°C
 The operating temperature specified is for a maximum altitude of 3050m
(10,000ft)
 Express Flash PCIe SSDs, GPUs, and LRDIMMs are not supported
 130W (4 core) processors are not supported
 Redundant power supplies are required
 Non Dell qualified peripheral cards and/or peripheral cards greater than 25W are
not supported