Ok, so I used the calculator at http://www.extreme.outervision.com/index.jsp for my main system in my sig to see how much power it actually needs and the calc said that under 100% load it needs 258 watts. Now the reason I ask is that the Ultra supposedly needs a 480watt PSU but the casemod project I am working on requires a 1U PSU to best of which I can find is a 350watt model with dual 12V rails (16A/12A). Will the 350watt 1U really work with the Ultra or will I be running a great risk of damaging components? Thanks a bunch for any help.