I do apologize for the noobiness of my question, PSU has never been my strength. My question is on the +12V rails on a powersupply. I've tried to go through the sticky but it either confused me or did not answer my qusetion.
Ok now to my question: Lets say that I want to make a SLI system with the new 8800GT, C2D, 1x DVD burner, 1x WD Caviar 500GB HDD, 4x1GB crucial ballistic ram. On the modern PSU it will show the amperage on the +12v rails, usually there are four listed each 12v rail listad as 18A. Now My confusion is if a video card needs 12V 22A rail, (or two for sli, 2x12v 22A=44A?), but the PSU lists the 12v rails as 18A. SO would the two being used for a SLI setup combine the amperage of the two unused to create the needed amperage? I was told that the rails aren't additive and so then according to what I was told this could not be. Please help dispel this confusion of mine. Thank you.
Ok now to my question: Lets say that I want to make a SLI system with the new 8800GT, C2D, 1x DVD burner, 1x WD Caviar 500GB HDD, 4x1GB crucial ballistic ram. On the modern PSU it will show the amperage on the +12v rails, usually there are four listed each 12v rail listad as 18A. Now My confusion is if a video card needs 12V 22A rail, (or two for sli, 2x12v 22A=44A?), but the PSU lists the 12v rails as 18A. SO would the two being used for a SLI setup combine the amperage of the two unused to create the needed amperage? I was told that the rails aren't additive and so then according to what I was told this could not be. Please help dispel this confusion of mine. Thank you.