Dell Precision 670 - 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 secondary monitor. To enable dual-monitor support, both monitors must be
attached to the computer when it starts.
For single- and dual-monitor capable cards with a single connector
VGA Adapter
Use the VGA adapter when you have a single monitor
graphics card and you want to connect 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 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 one or two DVI
monitors.
VGA
VGA
VGA
DVI
DVI