Dell OptiPlex XE (Early 2010) - Manual (Page 18)

Small Form Factor one
5.25 inch SATA DVD+/-RW drive:
Desktop one
Small Form Factor one (slim line)
NOTE: The Small Form Factor computer can support only two 2.5" hard drives with brackets.
External Connectors
Audio:
Back panel one line-out connector
one line-in connector/microphone
Network two RJ45 connectors
Serial two 9-pin connector; 16550C-compatible
USB 2.0:
Front panel two connectors
Back panel four connectors
one 24 V powered connector
Video one 15-pin VGA connector
one DisplayPort connector
DVI with add-on graphics card only
NOTE: Video connectors vary depending on the
graphics card selected.
System Board Connectors
PCI 2.3 - data width 32 bits:
Desktop two 120-pin connectors
Small Form Factor one 120-pin connector
PCI Express x16 - data width 16 PCI Express lanes:
Desktop one 164-pin x16 connector
Small Form Factor one 164-pin (x16) connector
PCI Express x1- Data width one PCI- Express lane:
Desktop one 36-pin connector
Small Form Factor N/A
Serial ATA:
Desktop three 7-pin connectors
Small Form Factor three 7-pin connectors
Memory four 240-pin connectors
Internal USB device one 10-pin connector (supports two USB ports)
Processor fan one 5-pin connector
Hard-drive fan one 5-pin connector
Front panel control one 40-pin connector
Processor one 775-pin connector
Power 12 V one 4-pin connector
Power one 24-pin connector
Controls and Lights
Front of the computer:
Power button light solid blue light — indicates power-on state
blinking blue light — indicates sleep state of the
computer
solid amber light — indicates a problem with the
system board or power supply
blinking amber light — indicates a problem with the
system board
Drive activity light displays the SATA hard drive or optical drive activity
blue light — indicates that the computer is reading