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Key combinations, Controls and indicators, Power – Dell Precision 620 User Manual

Page 123: Physical, Environmental

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Key Combinations

functions differently depending on your operating system; see your operating system
documentation

or

starts embedded System Setup program (during POST only)

or

automatically starts the system from the network environment specified by the MBA rather
than from one of the devices in the System Setup Boot Sequence option

launches the utility partition (if installed) during system start-up

Controls and Indicators (External)

Reset control

push button

Power control

push button

Power indicators

green LED on control panel; blinking green in sleep state; dual-color LED on front panel

green for power, yellow for diagnostics

Hard-disk drive access indicator

green LED

Link integrity indicator

green LED for 10-Mb operation; orange LED for 100-Mb operation

Activity indicator

yellow LED

Diagnostic LEDs

four yellow or green LEDs on back of system (see "

Diagnostic LEDs

")

Controls and Indicators (Internal)

CPU mismatch

LED on system board

MEC mismatch

LED on system board

Suspend to RAM

LED on system board

Aux power

LED on system board

Power

DC power supply:

Wattage

410 W

Heat dissipation

750 BTU/hr (nominal) and 1,500 BTU/hr (maximum)

Voltage

90 to 135 V at 60 Hz; 180 to 265 V at 50 Hz

Backup battery

3-V CR2032 coin cell

Physical

Height

49 cm (19.3 inches)

Width

22.1 cm (8.7 inches)

Depth

45.2 cm (17.8 inches)

Weight

16.8 kg (37.0 lb) or more, depending on options installed

Environmental

Temperature:

Operating

10° to 35° C (50° to 95° F)

Storage

–40° to 65° C (–40° to 149° F)

Relative humidity

20% to 80% (noncondensing)