Dell OptiPlex SX280 - Manual (Page 82)

connectors on the front of the computer.
USB five USB 2.0-compliant connectors on the back I/O
panel; two on the front panel
Internally accessible:
Primary hard drive serial ATA port
Fans two 5-pin connectors
Chassis intrusion switch one 3-pin connector
Key Combinations
<Ctrl><Alt><Del> If running Microsoft® Windows® XP, brings up the
Windows Security window. If in MS-DOS® mode,
restarts (reboots) the computer
<F2> or <Ctrl><Alt><Enter> starts embedded system setup (during start-up only)
<Ctrl><Alt><b> automatically starts the computer from the network
environment specified by the remote boot
environment (PXE) rather than from one of the
devices in the system setup Boot Sequence option
(during start-up only)
<F12> or <Ctrl><Alt><F8> displays a boot device menu that allows the user to
enter a device for a single boot (during start-up only)
as well as options to run hard-drive and system
diagnostics
Controls and Lights
Power control push button
Power lights green light on power button—blinking green in sleep
state; solid green for power-on state
amber light—blinking amber indicates a problem with
an installed device; solid amber indicates an internal
power problem (see "
Power Problems ")
Hard-drive access light green light
Link integrity light (on integrated network adapter) green light for 10-Mb operation; orange light for 100-
Mb operation; yellow light for a 1000-Mb (1-Gb)
operation
Activity light (on integrated network adapter) yellow blinking light
Diagnostic lights four yellow and/or green lights on back panel
Standby power light yellow AUX_LED on the system board
Power supply light green light on the power adapter
Power
External DC power adapter:
Wattage 220 W
Heat dissipation 455 BTU/hr (average)
Voltage 90 to 135 V at 60 Hz; 180 to 265 V at 50 Hz
Backup battery 3-V CR2032 lithium coin cell
Physical
Vertical orientation width, depth, and height (without
cable cover)
8.9 cm (3.5 inches), 25.3 cm (9.95 inches), 26.4 cm
(10.375 inches)
Vertical orientation width, depth, and height (with
standard cable cover)
8.9 cm (3.5 inches), 33 cm (13 inches), 26.4 cm
(10.375 inches)
Vertical orientation width, depth, and height (with
extended cable cover)
8.9 cm (3.5 inches), 36.1 cm (14.2 inches), 26.4 cm
(10.375 inches)
Weight (without standard cable cover) 4.5 kg (10 lbs)
Weight (with standard cable cover) 4.9 kg (10.8 lbs)
Environmental
Temperature:
Operating 10° to 30°C (50° to 86°F)
Storage –40° to 65°C (–40° to 149°F)
Relative humidity 20% to 80% (noncondensing)
Maximum vibration:
Operating desktop or vertical hanging orientation: 0.25
gravities (G) at 3 to 200 Hz at 0.5 octave/min;
horizontal orientation: 0.25 G at 20 to 200 Hz at 0.5
octave/min
Storage 0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock:
Operating bottom half-sine pulse with a change in velocity of 20
inches/sec (50.8 cm/sec)
Storage 27-G faired square wave with a velocity change of
200 inches/sec (508 cm/sec)
Altitude: