Dell OptiPlex 790 (Early 2011) - Manual (Page 90)

Power
Wattage Maximum
Heat
Dissipation
Voltage
Coin-cell
battery 3 V CR2032 lithium coin cell
Physical
Height Width Depth Weight
Mini-Tower 36.00 cm
(14.17 inches) 17.50 cm (6.89
inches) 41.70 cm (16.42
inches) 8.87 kg (19.55 lb)
Desktop 36.00 cm
(14.17 inches) 10.20 cm (4.01
inches) 41.00 cm (16.14
inches) 7.56 kg (16.67 lb)
Small Form
Factor 29.00 cm
(11.42 inches) 9.26 cm (3.65
inches) 31.20 cm (12.28
inches) 5.70 kg (12.57 lb)
Ultra Small
Form Factor 23.70 cm (9.33
inches) 6.50 cm (2.56
inches) 24.00 cm (9.45
inches) 3.27 kg (7.20 lb)
Environmental
Temperature range:
Operating 10 °C to 35 °C (50 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Relative humidity (maximum) :
Operating 20% to 80% (non-condensing)
Storage 5% to 95% (non-condensing)
Maximum vibration:
Operating 0.25 GRMS
Storage 0.5 GRMS
Maximum shock:
Operating 40 G
Storage 105 G
Altitude:
90