Dell OptiPlex 990 (Early 2011) User Manual
Page 91
Power
Wattage
Maximum
Heat
Dissipation
Voltage
Ultra Small
Form Factor
200 W
758 BTU/hr
100 VAC to 240 VAC, 50 Hz to 60 Hz, 2.9 A
Coin-cell
battery
3 V CR2032 lithium coin cell
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
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
0.26 GRMS
Storage
2.2 GRMS
Maximum shock:
Operating
40 G
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