I have a user who wants to go to six monitors, but to do that he'll need a beefier video card. Could I buy a 500W or better PSU and replace the stock Dell with that? My experience has been that ...

Most OptiPlex 755 configurations are ENERGY STAR 4.0-qualified ... In “off” mode, it must consume less than two watts of power, and the machine’s power supply must be at least 80 percent efficient.

Internal power supply. ... If you think of green PCs as feeble machines scrunched into a microscopic form factor, you haven't seen the Dell OptiPlex 755 ($1,183 direct).

If you think of green PCs as feeble machines scrunched into a microscopic form factor, you haven't seen the Dell OptiPlex 755 ($1,183 direct). Despite its sizable mid-tower frame, which offers ...