I have an ABIT mobo and have some new IDE cables. The mobo has 40 pins on its IDE connectors but my HDD, CDROM, Floppy and IDE cables have a pin missing to help figure out the orientation.

According to a new in-depth report at Igor's Lab, PCI-SIG is set to replace the 16-pin 12VHPWR power connector with the new 12V-2x6 power connector as part of the new ATX 3.1 standard.