Dell OptiPlex 330 (Late 2007) - Manual (Page 102)

Audio two connectors for line-in/microphone and line-out;
two front-panel connectors for headphones and
microphone
System board connectors:
SATA four 7-pin connectors
Floppy drive 34-pin connector
Fan 5-pin connector
PCI 2.3 two 120 -pin connectors
PCI Express one 164-pin (x16) connector
Front Panel 40-pin connector
Power
DC power supply:
NOTE: Power consumption from an AC power source
can be zero when the computer is unplugged from
that power source, but the internal battery does
draw a minute amount of power from the power
supply even when the computer is not drawing
power from the AC power source.
Wattage 280 W
Heat dissipation 955 BTU/hr
NOTE: Heat dissipation is calculated based upon the
power supply rating.
Voltage manual selection power supplies — 90 to 135 V at
50/60 Hz; 180 to 265 V at 50/60 Hz
Backup battery 3-V CR2032 lithium coin cell
Controls and Lights
Power control 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 green
Link light solid green light indicates network connection
Link integrity light (on integrated network adapter) l green light = 10 Mbps
l orange light = 100 Mbps
l yellow light = 1000 Mbps (1 Gbs)
Activity light (on integrated network adapter) yellow blinking light
Diagnostic lights four lights on the front panel (See Diagnostic Lights .)
Standby power light AUX_PWR on the system board
Communications
Network adapter 10/100/1000 Ethernet LAN on system board
Expansion Bus
Bus type PCI 2.3
PCI Express 1.0A
SATA 1.0A and 2.0
USB 2.0
Bus speed PCI: 133 MB/s
PCI Express x16: 8 GB/s bidirectional speed
SATA: 1.5 Gbps and 3.0 Gbps
USB: 480 Mbps
Cards standard configuration supports low-profile cards
only;
with optional riser-card cage, computer supports half-
length, full-height cards. Full-height cards are
supported in the 6.875-inch riser card cage.
PCI: without riser-card cage