Dell OptiPlex 390 Owners Manual - Page 84

PCI Express lanes, System Board Connectors - small form factor

Page 84 highlights

External Connectors Video Back Panel: 6 15-pin VGA connector, 19-pin HDMI connector NOTE: Available video connectors may vary based on the graphics card selected. System Board Connectors PCI Express x1 data width (maximum) - one PCI Express lane Mini-Tower, Desktop three 36-pin connector Small Form Factor one 36-pin connector PCI Express x16 data width (maximum) - 16 PCI Express lanes Mini-Tower, Desktop, Small Form Factor one 164-pin connector Serial ATA Mini-Tower,Desktop four 7-pin connectors Small Form Factor two 7-pin connectors PS2/COM connector one 24-pin connectors Memory two 240-pin connectors System Fan Mini-Tower, Desktop two 3-pin connector Small Form Factor one 5-pin connector Front panel control one 16-pin, two 10-pin, and one 5-pin connector Processor one 1155-pin connector Processor Fan Mini-Tower, Desktop one 4-pin connector 84

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External Connectors
Back Panel: 6
Video
15-pin VGA connector, 19-pin
HDMI connector
NOTE:
Available video
connectors may vary based
on the graphics card selected.
System Board Connectors
PCI Express x1 data width (maximum) —
one PCI Express lane
Mini-Tower, Desktop
three 36-pin connector
Small Form Factor
one 36–pin connector
PCI Express x16 data width (maximum) —
16 PCI Express lanes
Mini-Tower, Desktop,
Small Form Factor
one 164-pin connector
Serial ATA
Mini-Tower,Desktop
four 7-pin connectors
Small Form Factor
two 7-pin connectors
PS2/COM connector
one 24-pin connectors
Memory
two 240-pin connectors
System Fan
Mini-Tower, Desktop
two 3-pin connector
Small Form Factor
one 5-pin connector
Front panel control
one 16-pin, two 10–pin, and one 5-pin
connector
Processor
one 1155-pin connector
Processor Fan
Mini-Tower, Desktop
one 4-pin connector
84