I ordered a second hard drive for my powermac g5.Its a 400 gig seagate drive.I power off my machine,unhooked everything and plugged in the drive.I boot up and the drive isnt showing in disk utility.Is it something i did?
If it's IDE make sure you have the master/slave jumpers in the right positions. I guess most systems of a G5 age would want both set to "Cable Select".