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Dell OptiPlex 780 - Page 7

Dell OptiPlex 780
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Inside of computer:
Power supply light
Green — The power supply is turned on and is functional.
The power cable must be connected to the power connector
(at the back of the computer) and the electrical outlet. A test
button and LED are on the top side of the unit.
NOTE: You can test the health of the power system by pressing
the test button. When the system’s power supply voltage is within
specification, the self-test LED lights. If the LED does not light up,
the power supply may be defective. AC power must be connected
during this test.
NOTE: The test button and indication LED are not accessible
from outside the system. They are located under the removable
side cover on top of the power supply.
Power
Wattage 180 W
Maximum heat dissipation 750 BTU/hr
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Voltage 90–264 VAC
Frequency 47–63 Hz
Input amperage 2.6 A
NOTE: See the safety information that shipped with your computer for important
voltage–setting information.
Coin-cell battery 3V CR2032 lithium coin cell
Physical
Height 23.7 cm (9.3 inches)
Width 6.5 cm (2.6 inches)
Depth 24.0 cm (9.4 inches)
Weight 3.2 kg (7 lbs)
Control Lights and Diagnostic Lights (continued)
CTPCKA00.fm Page 7 Monday, November 23, 2009 2:54 PM

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