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
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Summary of Contents for OptiPlex 390 Mini-Tower
Page 1: ...Dell OptiPlex 390 Mini Tower Owner s Manual Regulatory Model D12M Regulatory Type D12M001 ...
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Page 52: ...7 Remove the screws that secure the system board to the computer 52 ...
Page 53: ...8 Slide the system board towards the front of the computer 53 ...
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