FW external drives will not mount to 2010

[Bokes]

Just received my 2010 3.3 6core.
I am having issues with mu G-tech and Lacie external FW800 drives mounting to the desktop. The drives just spin and click and never mount. I tried different cables and both- front and back ports.

Never had an issue using these same drives with a 2008 Macpro.

What has changed and how do i get them to mount?

[fensterbme]

Just received my 2010 3.3 6core.
I am having issues with mu G-tech and Lacie external FW800 drives mounting to the desktop. The drives just spin and click and never mount. I tried different cables and both- front and back ports.

Never had an issue using these same drives with a 2008 Macpro.

What has changed and how do i get them to mount?

Weird my 2010 3.33Ghz. Mac Pro mounts up my G-Tech drive without issue via Firewire 800, just mounted mine 30 min ago to pull some files over.

[mjsmke]

Do they still work on your 2009 MP? The clicking sound may indicate something is wrong with the drive.

[Bokes]

It was a 2008 and I sold it. But they all mounted to the 2008 up until the day I sold it. I can understand ONE drive maybe going bad- but all 3? And different brands? Very odd.

[philipma1957]

are you using just fw800 cable for power no wallwart? are you mounting 1 2 or 3 at a time?

[jessica.]

Did you try using another cable?
I thought I recalled reading something about the newest MPs having an issue with FW drives.

[Bokes]

one at a time with wall power.