Dell Precision 690 - Manual (Page 82)

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)