Dell OptiPlex 5055 Tower OptiPlex 5055 Tower Owners Manual - Page 72

Controls and lights, Power

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Controls and lights Table 27. Controls and lights Feature Specification Front of the computer Power button light White light - Solid white light indicates power-on state; slow blinking white light indicates sleep state of the computer. Drive activity light White light - Slow blinking white light indicates that the computer is reading data from or writing data to the hard drive. Back of the computer Link integrity light on integrated network adapter Green - A 10 Mbps connection exists between the network and the computer. Green - A 100 Mbps connection exists between the network and the computer. Orange - A 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 breathing yellow light indicates that network activity is present. Power supply diagnostic 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. Power Table 28. Power Specifications Feature Wattage AC input voltage range AC input current (low ac range / high ac range) AC input frequency Coin cell battery Specification 240 W 90 - 264 Vac 4 A/ 2 A 47 Hz/ 63 Hz 3 V CR2032 lithium-coin-cell 72 System setup

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Controls and lights
Table 27. Controls and lights
Feature
Specification
Front of the computer
Power button light
White light — Solid white light indicates power-on state; slow blinking white
light indicates sleep state of the computer.
Drive activity light
White light — Slow blinking white light indicates that the computer is
reading data from or writing data to the hard drive.
Back of the computer
Link integrity light on integrated network adapter
Green — A 10 Mbps connection exists between the network and the
computer.
Green — A 100 Mbps connection exists between the network and the
computer.
Orange — A 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 breathing yellow light indicates that network activity is
present.
Power supply diagnostic 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.
Power
Table 28. Power
Specifications
Feature
Specification
Wattage
240 W
AC input voltage range
90 – 264 Vac
AC input current (low ac range / high ac
range)
4 A/ 2 A
AC input frequency
47 Hz/ 63 Hz
Coin cell battery
3 V CR2032 lithium-coin-cell
72
System setup