8 Replies Latest reply: Jul 4, 2010 3:03 PM by Steve Jobs's Black Sweater
Steve Jobs's Black Sweater Level 1 Level 1 (0 points)
I cannot get my Mac Pro to see my external hard drive (Mercury Elite Pro) when it connected by Firewire 400 or 800. I tried both front and back ports, neither work. When connected by USB cable, the drive DOES work so I know it's not a problem with the drive.

Using the Disk Utility, the drive does not show up at all. I've checked all the usual suspects (cable is fine, the drive is on, etc.). BTW I was able to use a Firewire drive with this system a few months ago so I know it did work at one point.

Any ideas on what I should try? Thanks.

Mac Pro, Mac OS X (10.4.9), Dual Intel Xeon (Dual Core) 3.0Ghz CPUs, two 500GB HDDs