Processor Power and Voltage 
Describes external and internal voltage levels, standard voltage levels and motherboard voltage support, power management, and power and voltage for specific processors.

BIOS Settings - Power Management
Describes the various settings that you can use to control your system's automatic power management settings. This page is from "The PC Guide".

Computer Power Technology
Home page for Computer Power Technology, providers of power quality products (UPS systems), turnkey design/Bui (Since 1985) has been providing Power Quality Products (UPS Systems, ect.), Turnkey Design/Build (Raised Access Flooring, ect.), Consulting and Customer Service for Computer Rooms, Network Facilities and Industrial Applications.