I would like to save a computer, we recommend to me a full set of configuration it
Black and blue may be zero line brown may be FireWire
Standard fixed does not allow high and low voltage cable co-management, do not do so, out of trouble is your responsibility
My home is selling hardware. Wires have a variety of colors, blue, red, yellow, green, etc., when you buy the color of which can be used to distinguish between the zero line FireWire, with which color to do all the line by the personal favorite, many people do not press Provisions of the access, and some people easy to use the same line with the line have, huh, huh. General provisions need to use yellow and red do FireWire, yellow or green or blue to do zero line, do black PE line.