Dell OptiPlex 980 (Early 2010) - Manual (Page 7)

Video one 15-hole VGA connector
one 20-pin DisplayPort connector
System Board Connectors
PCI 2.3 data width (maximum) — 32 bits
Mini-tower two 120-pin connectors
Desktop two 120-pin connectors
Small form factor one 120-pin connector
PCI Express x16 (wired as x4) data width (maximum) — four PCI Express lanes
Mini-tower one 164-pin connector
Desktop one 164-pin connector
Small form factor not applicable
PCI Express x16 data width (maximum) — 16 PCI Express lanes
Mini-tower one 164-pin connector
Desktop one 164-pin connector
Small form factor one 164-pin connector
Serial ATA
Mini-tower four 7-pin connectors
Desktop three 7-pin connectors
Small form factor three 7-pin connectors
Memory four 240-pin connectors
Internal USB one 10-pin connector (supports two USB
ports)
Processor fan one 5-pin connector
Front I/O one 26-pin connector
Front panel control one 14-pin connector
Processor one 1156-pin connector
Power 12V one 4-pin connector
Power one 24-pin connector
Internal serial card one 14-pin connector
Internal speaker one 5-pin connector
PCI Express x1 (wireless card) one 36-pin connector
Thermal sensor one 2-pin connector
Intruder connector one 3-pin connector
Controls and Lights
Front of the computer
Power button push button
Power light blinking blue — indicates that the
computer is in sleep state.
solid blue — indicates that the computer
is in power-on state.
blinking amber — indicates a problem
with the system board.
solid amber (when the computer does not