Dell OptiPlex 740 User Manual
Page 71
Optional PS/2 with secondary serial port
adapter
two 6-pin mini-DINs
NOTE:
This option uses one of the PCI slots.
Optional DVI
36-pin connector
NOTE:
This option uses one of the PCI slots.
USB
two front-panel and five back-panel USB 2.0–
compliant connectors
Audio
two connectors for line-in and line-out; two front-
panel connectors for headphones and microphone
System board connectors:
SATA
three 7-pin connectors
Floppy drive
38-pin connector
Serial
24-pin connector for optional second serial port card
Fan
5-pin connector
PCI 2.3
two 124
-pin connectors
PCIe-X16
164-pin connector
Internal USB
10-pin connector
Intrusion switch
3-pin connector
Speaker
5-pin connector
Memory modules
four 240-pin connector
Power 12V
4-pin connector
Power
24-pin connector
Battery
2-pin socket
Front panel
40-pin connector
Key Combinations
<Ctrl><Alt><Del>
in Microsoft® Windows® XP and Windows Vista®,
brings up the Windows Security window; in MS-DOS®
mode, restarts (reboots) the computer
<F2> or <Ctrl><Alt><Enter>
starts embedded system setup (during system start-
up only)
<Ctrl><n>
starts the RAID setup menu if RAID is turned on in the
system setup program
<F12> or <Ctrl><Alt><F8>
displays a boot device menu that allows the user to
enter a device for a single boot (during system start-
up only) as well as options to run hard-drive and
system diagnostics
Controls and Lights
Power control
front panel — push button
Power light
green light. Blinking green indicates a sleep mode;
solid green indicates a power-on state.
amber light. Blinking amber indicates a problem with
an installed device; solid amber indicates an internal
power problem (see
Power Problems
).
Hard-drive access light
front panel — green
Link light
front panel — solid green light indicates network
connection
Link integrity light (on integrated network adapter)
rear panel — 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)
rear panel — yellow blinking light
Diagnostic lights
front panel — Four lights on the front panel. See
Diagnostic Lights
.
Standby power light
AUX_PWR on the system board
Power
DC power supply:
Wattage
280 W