The secondary IDE, I tried my Acer 40X, my 13Gig hard drive, and the old TrueX 52x, all ran fine. Its just the 72x, it can boot, but it locks up the machine consistently, when I put in a CD, it recognizes it just fine, I go in to the CD directory, still fine, then I hit "back", which supposedly returns me to My Computer, but right at that moment, the machine will freeze, the hard drive LED is on for some reason, so is the 72x's LED.
It works fine on primary slave, no way I can try Primary master because thats where my boot drive is, I tried both secondary master and slave, same thing happens, my burner is on SCSI.