Here are useful power supply calculators, from quality power supply, and hardware manufacturers. http://www.antec.outervision.com/ http://www.pcpower.com/technology/power_usage/ http://support.asus.com/PowerSupplyCalculator/PowerSupplyCalculator_right.aspx Mark Rode At 06:54 AM 12/10/2009, you wrote: >What is the minimum size power supply recommended for an >i7-860 board, 8 GB memory, ATI 4670, 1 HD, and DVD burner? > >Bob Warasila > > Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml