For a bootable C drive should should I use the blue SATA connector or black. Which is the faster connecton.
More aboutsata connectors
You'll have to read your board manual. Sata II is faster than sata I. I use sata I if trying to install windows 2k without a floppy disk containing the sata driver. Vista and 7 don't require the driver, but xp and 2k do on some boards.