Dell Precision 620 - Manual (Page 123)

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)