Dell 755 manual Controls and Lights, AC power source Wattage, Heat dissipation, Rating Voltage

Key Combinations

<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
<Ctrl><p>	displays the Management Engine BIOS Extension settings screen
	that allows you to modify the settings
Controls and Lights
Power control	push button
Power light	green light — blinking green indicates sleep mode; solid green
	indicates power-on state.
	amber light — blinking amber indicates a problem with an
	installed device; solid amber indicates an internal power problem
	(See "Power Problems" on page 339.)
hard drive access light	green
Link light (on front of chassis)	solid green light indicates network connection
Link integrity light (on integrated	green light for 10-Mb operation; orange light for 100-Mb
network adapter)	operation; yellow light for a 1000-Mb (1-Gb) operation
Activity light (on integrated network	yellow blinking light
adapter)
Diagnostic lights	four lights on the front panel (See "Diagnostic Lights" on
	page 347.)
Standby power light	AUX_PWR on the system board
Power
DC power supply:	NOTE: Power consumption from an AC power source can be zero
	when the computer is unplugged from that power source. However,
	the computer draws a minute amount of power from the internal coin
	cell battery even when the computer is not drawing power from the
	AC power source.
Wattage	305 W
Heat dissipation	1041 BTU/hr
	NOTE: Heat dissipation is calculated based upon the power supply
	rating.
Voltage	manual selection power supplies—90 to 135 V at 60 Hz; 180 to
	265 V at 50 Hz
Backup battery	3-V CR2032 lithium coin cell

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Mini Tower Specifications