Dell 755 Personal Computer User Manual


 
38 Mini Tower Specifications
<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
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 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
Key Combinations