Originally posted by Ssseth
Just because a 40 wire cable is technically able to go that fast does not always mean it does so properly.
An 80 wire cable does help in many cases. I would recommend using one if you are having speed problems.
not to be a pain in the @ but the cable is really not likely to be any sort of a bottleneck.
well up to udma3 (i think) ata 3 the 40 pin cables were able to read and write data to hard drives with no problems. ata3 is 33 meg/sec which is almost 3 times 8x dvd (11080KB).
the extra 40 pins on the cable will eliminate crosstalk when data is moving at ata 33 speeds but are really of no value to a udma2 device like a dvdburner.
The 40-conductor cable was first defined with the original Ultra DMA modes 0, 1 and 2, covering transfer speeds up to 33.3 MB/s. The cable is considered "optional" for those modes. However, for any Ultra DMA modes above mode 2, the 80-conductor cable is mandatory.