Dell 690 manual Key Combinations, Controls and Lights, Power, Physical

Audio	two front-panel connectors for microphone and
	headphones;
	two back-panel connectors for line-in and line-out/
	headphones
System board connectors:
IDE drive	40-pin connector
Floppy drive	34-pin connector
SAS/ SATA	four 7-pin connectors
SATA	three 7-pin connectors
Key Combinations
<F2>	starts embedded system setup (during start-up only)
<F12> or <Ctrl><Alt><F8>	starts the Boot Device menu (during start-up only)
<Ctrl><Alt><F10>	launches the utility partition (if installed) during
	computer start-up
Controls and Lights
Power control	push button
Power light	green light—blinking green in sleep state; solid green
	for power-on state
	amber light—blinking amber indicates that an internal
	power problem might exist; solid amber indicates that
	a device may be malfunctioning or incorrectly installed
	(see Power Problems)
Hard-drive access light	green
Link integrity light	Back panel: green light for 10-Mb operation; orange
	light for 100-Mb operation; yellow light for a 1000-Mb
	(1-Gb) operation
	Front panel: displays solid green when a network
	connection is present
	NOTE: If an active network connection is
	present, the light will remain on even if the
	onboard LAN controller is disabled in system
	setup. The light will only be off when the
	computer is in a low-power mode.
Activity light	yellow blinking light on the back panel when there is
	network activity.
Diagnostic lights	four lights on the front panel
Standby power light	AUX_PWR on the system board
Power
DC power supply:
Wattage	750 W or
	1 KW
Heat dissipation	750 W: 2559 BTU/hour
	1 KW: 3412 BTU/hour
	Note: Heat dissipation is calculated based upon the
	power supply wattage rating.
Voltage	auto-sensing power supply—90 V to 265 V at 50/60
	Hz
Backup battery	3-V CR2032 lithium coin cell
Physical
Height	22.3 in (56.6 cm)
Width	With stand: 12.8 in (32.5 cm)
	Without stand: 8.5 in (21.6 cm)
Depth	21.2 in (53.8 cm)
Approximate minimum weight	55 lb (24.9 kg)