i have just built myself a custom system and had a spare IDE HDD, my motherboard only supports SATA so I purchesed a bi-directional converter (IDE-SATA & SATA-IDE) but for some reason my computer wont detect the IDE HDD. I have connected power cable etc. I have tried changing the SATA cables ect but nothing works?????
These kind of things happens to HDD converters. Pay attention to the LED on the converter's PCB, make sure it's lit. Make sure to place the IDE connection is correct, since you might slip a pin width. Also make sure the SATA connection is firm, a loose one will give you faulty readings. If all of the above doesn't work, try a new converter. It might be the converter that's faulty.
BTW, are you sure the MB only supports SATA? I'm pretty sure IDE sockets is always included in a standard MB. Why don't you upload some pictures about your issue, we'll see what we can do to help.