i checked all of them my 80gig hard worked befor. i connect ide hdd to computer with sata hdd and work propraly but after 20min system restarted and sata hdd recognized by bios but cap=0 i solved this problem with rs232 to ttl and hyper terminal using command m0,2,2,0,0,0,0,22 . but ide hdd not rcognized in bios and ican't find any way to solve this problem.i want to know (are ide hdd have rx-tx pin? how to connect to ide hdd with rs232 to ttl )