I usually put my Ultra 100 hard drive on one IDE controller with a 80 pin cable and the CD-Rom on the second IDE with a 40 pin cable so the CD-Rom wont clock the hard drive down. I read from Abit ...

figuring that if 80 pin IDE cables are directional that wont go against the direction of the data flow which was intended. So is it possible? Or will I see sparks and end up with a partial IDE ...