Dell XPS/Dimension XPS Gen 4 - Manual (Page 117)

Appendix
117
Connectors
External connectors:
Serial 9-pin connector; 16550C-compatible
Parallel 25-hole connector (bidirectional)
IEEE 1394 front-panel 6-pin serial connector
Video 15-hole connector
Network adapter RJ45 connector
PS/2 (keyboard and mouse) two 6-pin mini-DIN
USB two front-panel and six back-panel USB 2.0–compliant connectors
Audio five connectors for line-in, line-out, microphone, surround, and
center/Low Frequency Effects (LFE) channel; two front-panel
connectors for headphones and microphones
System board connectors:
Primary IDE drive 40-pin connector on PCI local bus
Serial ATA four 7-pin connectors
Floppy drive 34-pin connector
Fan 5-pin connector
PCI 2.3 four 120-pin connectors
PCI Express x1 36-pin connector
PCI Express x16 164-pin connector
Telephony (TAPI) 4-pin connector
Controls and Lights
Power control push button
Power light green light — Blinking green in sleep state; solid green for power-on
state.
amber light — Blinking amber indicates a problem with an installed
device; solid amber indicates an internal power problem (see "Power
Problems" on page 46).
Hard-drive access light green