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Appendix
83
Connectors
External connectors:
Serial
9-pin, 16550C-compatible connector
IEEE 1394
one 6-pin powered back-panel connector (not present on all
computers)
one 6-pin powered front-panel connector (with optional Media Card
Reader)
Video
15-hole D-SUB connector
USB
two front-panel and five back-panel USB 2.0–compliant connectors
Headphone
front-panel miniature connector for line-out
Audio
five connectors for line-in, line-out, microphone, surround, and
center/Low Frequency Effects (LFE) channel;
S/PDIF back panel
connector (S/PDIF connector not present on all computers)
Network adapter
RJ45 connector
Modem
RJ11 (MDC 1.5) connector
System board connectors:
IDE drive
one 40-pin connector
Serial ATA
one 7-pin connectors
Fan
one 5-pin connectors
PCI Express x1
36-pin connector
PCI Express x16
164-pin connector
USB
8-pin header for optional Media Card Reader (3.5-inch bay device)
MDC
one 12-pin connector
Front-panel audio
one 10-pin header
Front panel
one 34-pin header
Power
one 2 x 10 connector
Processor power
one 2 x 2 connector
IEEE 1394
one 2 x 5 header for optional Media Card Reader (3.5-inch bay
device)