Dell OptiPlex 980 (Early 2010) - Manual (Page 7)

Drive activity light Displays the SATA hard drive or optical
drive activity.
Blue light — Blinking blue light
indicates that the computer is reading
data from or writing data to the drive.
Network activity light Blue light — A good connection exists
between the network and the computer.
Off (no light) — The computer is not
detecting a physical connection to the network.
Diagnostic lights Four amber lights located on the front panel
of the computer. For information on the
diagnostic lights, see the
Service Manual
available on the Dell Support website at
support.dell.com/manuals.
Back of computer
Link integrity light
on integrated
network adapter Green light — A good 10 Mbps connection
exists between the network and the
computer.
Orange light — A good 100 Mbps
connection exists between the network and
the computer.
Yellow light — A good 1000 Mbps
connection exists between the network and
the computer.
Off (no light) — The computer is not
detecting a physical connection to the
network.
Network activity light on
integrated network
adapter Yellow light — A blinking yellow light
indicates that network activity is present.
Control Lights and Diagnostic Lights (continued)
Power supply light Green light — 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.
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
up. If the LED does not light up, the power
supply may be defective. AC power must be
connected during this test.
Power Wattage Maximum heat
dissipation
Voltage
Mini Tower (DCSM1F)
EPA 255 W 1060 BTU/hr 100-240 VAC
APFC 305 W 1600 BTU/hr 100-240 VAC
Desktop (DCNE1F)
EPA 255 W 1060 BTU/hr 100-240 VAC
APFC 255 W 1337 BTU/hr 100-240 VAC
Small Form Factor (DCCY1F)
EPA 235 W 977 BTU/hr 100-240 VAC
APFC 235 W 1233 BTU/hr 100-240 VAC
NOTE:
Heat dissipation is calculated using the power supply
wattage rating.
Coin-cell battery 3V CR2032 lithium coin cell
Control Lights and Diagnostic Lights (continued)
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