crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

Your new drive has a 6 GB/s transfer rate which is to fast for your older machine.  Your machine has an 800 MHz FSB (front side bus) data transfer rate.  The drive must be slowed down to be seen by Disk Utilities.  This is done with jumpers.  Try jumping pins 5 & 6:  http://www.wdc.com/wdproducts/library/other/2579-001037.pdf

crwdns2915684:0crwdne2915684:0:

open