But an OptiPlex 755 with a Celeron CPU, 17-inch LCD monitor and Dell’s Energy Smart power-management scheme consumes just 213 KWhr, which will save you $75.30 per year, per machine. In terms of ...

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).

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).

The OptiPlex 755, along with other Dell products, is also available with Energy Smart power settings that can lower energy costs by up to 78 percent. 2 Dell is also taking a leadership position in ...