Dell OptiPlex GX400 - Manual (Page 36)

Serial (DTE) two 9-pin connectors; 16550-compatible
Parallel one 25-hole connector (bidirectional)
Video one 15-hole connector (on video card)
Network interface controller
(NIC) RJ45 connector
Personal System/2 (PS/2)-style
keyboard 6-pin mini-Deutsche Industrie Norm (DIN)
PS/2-compatible mouse 6-pin mini-DIN
Universal Serial Bus (USB) four USB-compliant connectors
Audio one microphone jack;
one line-in jack;
one line-out jack
Internally accessible:
Primary enhanced
integrated drive
electronics (EIDE)
hard drive 40-pin connector on PCI local bus
Secondary EIDE hard drive 40-pin connector
Diskette drive 34-pin connector
CD drive audio interface 4-pin connector
Fan 3-pin connector
Telephony (TAPI) 4-pin connector
Key Combinations
restarts (reboots) the system
starts system setup during power-on self-test (POST) only
<\> toggles microprocessor speeds on 101-key keyboard (in MS-DOS® real mode only)
<#> toggles microprocessor speeds on 102-key keyboard (in MS-DOS real mode only)
disables the system password at start-up
Controls and Indicators
Reset control push button
Power control push button
Power indicators green light blinking green in sleep state; dual-color light on front panel—green for power, yellow for diagnostics
Hard-drive access indicator green light
Link integrity and speed indicator
(on integrated NIC connector)
green light for 10-Mb operation; orange light for 100-Mb operation
Activity indicator (on NIC connector) yellow light
Power
DC power supply:
Wattage 250 Watts (W)
Heat dissipation 913 British thermal units (BTU) (fully loaded system without monitor)
Voltage 90 to 135 V at 60 hertz (Hz); 180 to 265 V at 50 Hz
Backup battery 3-V CR2032 coin cell
Physical
Height 44.5 centimeters (cm) (17.5 inches)
Width 20.6 cm (8.1 inches)
Depth 43.7 cm (17.2 inches)
Weight 15 kilograms (kg) (33.0 pounds [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)
Maximum vibration:
Operating 0.25 gravities (G) at 3 to 200 Hz at 0.5 octave/minute (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/second (sec) (50.8 cm/sec)
Storage 27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec)
Altitude:
Operating – 16 to 3048 meters (m) (–50 to 10,000 feet [ft])
Storage – 16 to 10,600 m (–50 to 35,000 ft)