I had switched to SATA DVDs a while back but I tried to get a PATA running and ran into the kernel detecting my cable as a 40 wire when I knew it was 80. My suspicion is that even when it thinks it is an 80 wire, it chooses a DMA level that cannot be sustained. I put in a SATA instead. Jim On Mon, Jul 23, 2012 at 1:30 PM, Jonathan Lozinski <