Dell OptiPlex GX520 User Manual page 106

Expansion Bus
Bus type
Bus speed
Cards:
PCI:
connectors
connector size
connector data width
(maximum)
PCI Express:
connectors
power
connector size
connector data width (maximum)
Drives
Externally accessible
Internally accessible
Connectors
External connectors:
Serial
Parallel
Video
Network adapter
Optional PS/2 with secondary serial port
adapter
USB
Audio
System board connectors:
Primary IDE drive
Serial ATA
Floppy drive
Serial
Fan
PCI 2.2
CD drive audio interface
Front panel
Key Combinations
<Ctrl><Alt><Del>
<F2> or <Ctrl><Alt><Enter>
<Ctrl><Alt><b>
devices per channel with one channel
PCI 2.3
SATA 1.0a and 2.0
USB 2.0
PCI Express 1.0a
PCI: 33 MHz
SATA: 1.5 Gbps and 3.0 Gbps
USB: 480 Mbps
PCI Express x1: 5 Gbps
full-height cards supported
two
120 pins
32 bits
one x1
10 W maximum
36 pins
one PCI Express lane
one 3.5-inch drive
two 5.25-inch drive bays
two bays for 1-inch-high hard drives
9-pin connector; 16550C-compatible
25-hole connector (bidirectional)
15-hole VGA connector
RJ45 connector
two 6-pin mini-DINs
two front-panel and six back-panel USB 2.0–
compliant connectors
three connectors for line-in, line-out, and microphone;
two front-panel connectors for headphones and
microphone
40-pin connector
four 7-pin connectors
34-pin connector
12-pin connector for optional second serial port card
5-pin connector
120-pin connector
4-pin connector
40-pin connector
in Microsoft® Windows® XP, brings up the Windows
Security window.; in MS-DOS® mode, restarts
(reboots) the computer
starts embedded system setup (during system start-
up only)
automatically starts the computer from the network
environment specified by the remote boot
environment (PXE) rather than from one of the
devices in the system setup Boot Sequence option