Dell OptiPlex GX520 - Page 155

devices per channel with one channel
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Expansion Bus
Bus type
PCI 2.3
SATA 1.0a and 2.0
USB 2.0
Bus speed
PCI: 33 MHz
SATA:1.5Gbpsand3.0Gbps
USB: 480 Mbps
Cards
half-length, full-height cards supported with optional
riser-card cage
Default: no riser-card cage:
low-profile cards supported
PCI:

connectors
two
card size
low profile
connector size
120 pins
connector data width
(maximum)
32 bits
Optional: full-height PCI riser-card cage:
low-profile and full-height cards supported
PCI:

connectors
three
card size
one low-profile card and two full-height cards
connector size
120 pins
connector data width
(maximum)
32 bits
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Drives
Externally accessible
one 3.5-inch drive
one bay for CD/DVD or optional second hard drive
Internally accessible
one bay for a 1-inch-high hard drive
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Connectors
External connectors:
Serial
9-pin connector; 16550C-compatible
Parallel
25-hole connector (bidirectional)
Video
15-hole VGA connector
Network adapter
RJ45 connector
Optional PS/2 with secondary serial port
adapter
two 6-pin mini-DINs
USB
two front-panel and six back-panel USB 2.0–
compliant connectors
Audio
three connectors for line-in, line-out, and microphone;
two front-panel connectors for headphones and
microphone
System board connectors:
Primary IDE drive
40-pin connector
Serial ATA
two 7-pin connectors
Floppy drive
34-pin connector
Serial
12-pin connector for optional second serial port card
Fan
5-pin connector
PCI 2.3
120-pin connector
CD drive audio interface
4-pin connector
Front panel
40-pin connector
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Key Combinations
<Ctrl><Alt><Del>
in Microsoft®Windows®XP, brings up the Windows
Security window; in MS-DOS®mode, restarts
(reboots) the computer