Looks like if the WD160 is ATA Compatable, I don't need to change the pin configuation from 7,8. If not compatable, I need to add a jumpper across the 5,6 too. Do I try a start up to see if it is compatable? Or how do I find out before? Thanks -----Original Message----- From: "Harry Freeman" <harry at gifutiger.com> To: "A place to discuss Apple's G4 computers." <g4 at listserver.themacintoshguy.com> Sent: 10/7/07 12:50 PM Subject: Re: [G4] Adding a Western Digital 160HD Greetings ( + )!( + ) You should get the .pdf file listed below as it will tell you how to configure the drive prior to installation. http://www.seagate.com/support/disc/manuals/ata/100129212b.pdf It's pretty important to get the pin configuration correct, it not the drive won't respond as expected. ---------------------------------------------------- On Oct 7, 2007, at 10:31 AM, Joe wrote: > I have a Power Mac G4 (Quick silver?) with Dual 1 Gig, a Seagate > Barracuda ATA IV Model ST380021A 80 Gbytes Harddrive. The Pin > configuration on this drive only has 8 pins the jumper in in the 7,8 > slot if the 1,2 is closest to the power cord and 7,8 farthest from > Power cord. > Question One: > When I install the Western Digital 160 HD as the slave it looks as if > the pin configuration on the WD should be in the 3,4 spot. Do I need > to take out the jumper in the 1,2 position? Do I need to change the > Seagate pin positions from 7,8? > > Question Two: > When I start up the computer and put in 10.4 and go to Disk Utility > and get info on my 80HD (Master ID=0) and 160HD (Slave ID=1) is that > what it should say? Do I need to check this before formatting the new