i recently built a new computer and i'm pretty computer lost when it comes to putting them together so a friend did most of it, we got my plextor 128 solid state drive recognized and booted windows, but for some reason my seagate barracuda green 2TB ST2000DL003 hard drive is no where to be found, i'm not really sure what i should do to see what the problem is, i know the sata cables are hooked up and i've tried different ones, but i can't seem to get it to be located in bios or anything, and i'm not really sure what to do...