Hi Mr. Kirk, Maybe it'd just be best to pull the original drive out after you have it entirely backed up and just replace it with your other 500 GB drive. That would use no more power than what you're using now, and it's not likely that deleting a file on one drive will cause problems on the other. I had to play musical drives when I did my SATA upgrade. Threw one drive in, moved my system, then removed the old system drive and added the other SATA. Worked beautifully. I'm probably overly cautious if I advise against using three hard drives anyway, since Apple does provide three HD expansion bays. Or four in many cases. All that plus the optical slot and the zip-sized one beneath it... Why keep separate partitions? Eric On Mon, 2007-09-03 at 14:47 -0500, thekirkline1941 at verizon.net wrote: > Thanks again for the help in installing the PCI card and new hard drive. However, I chickened out when it came to putting in both 500 GB drives. Someone cautioned that that might be too much for the power supply. Consequently, I only installed the one drive and partitioned it into two 250 GB. This should suffice for a while. However, per the following--- "OR, another way to copy the contents and have the > new copy as a bootable drive is to use Apple's own program, > DiskUtility, and use the Restore function by selecting your original > drive as the source and the new drive as the destination for the > restoration."---I did just that. I must have overlooked something or did something incorrectly because now, when I delete something from my original drive, it is deleted from the backup as well. What should I do to prevent this from happening. Thanks. > > Jim Kirk > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 >