Dell 390 Personal Computer User Manual


 
Controls and Lights
of the computer) and the electrical
outlet.
NOTE: You can test the health
of the power system by
pressing the test button. When
the system power supply
voltage is within specification,
the self-test LED lights up. If the
LED does not light up, the
power supply may be defective.
AC power must be connected
during this test.
PowerWattageMaximum
Heat
Dissipation
Voltage
Mini-Tower265 W1390 BTU/hr100 VAC to 240 VAC, 50 Hz to 60 Hz, 5.0 A
Desktop250 W1312 BTU/hr100 VAC to 240 VAC, 50 Hz to 60 Hz, 4.4 A
Small Form
Factor
240 W1259 BTU/hr100 VAC to 240 VAC, 50 Hz to 60 Hz, 3.6 A;
Coin-cell
battery
3 V CR2032 lithium coin cell
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
PhysicalHeightWidthDepthWeight
Mini-Tower36.00 cm (14.17
inches(
17.50 cm (6.89
inches(
41.70 cm (16.42
inches(
8.87 kg (19.55 lb(
Desktop36.00 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(
Environmental
Temperature range:
88