Dell Precision 380 - Manual (Page 11)

Quick Reference Guide
11
The dual-monitor cable is color-coded; the blue connector is for the primary monitor, and the black
connector is for the second monitor. To enable dual-monitor support, both monitors must be
attached to the computer when you start the computer.
For single- and dual-monitor capable cards with a single connector
One VGA adapter:
Use the VGA adapter when you have a single-monitor
graphics card and you want to connect your computer to a
VGA monitor.
Dual VGA Y cable adapter:
Use the appropriate Y cable when your graphics card has a
single connector and you want to connect your computer
to one or two VGA monitors.
Dual DVI Y cable adapter:
Use the appropriate Y cable when your graphics card has a
single connector and you want to connect your computer
to one or two DVI monitors.
VGA
VGA
VGA
DVI
DVI