Can't mount Caviar Green 2TB on MacPro?

h’lo allo, first time here…

I’ve just put a new WD Caviar Gren 2TB in to a G-Tech Q-160 enclosure (FW 800 & 400 and USB 2) , trying to connect it to my MacPro 8-core, running 10.6.8. It only occasionally mounts and when it doesn’t, Disk Utility and System Perfs canot “see” it.

Is it going “to sleep”? Or any other thoughts?

Hi, might be a problem with the enclosure, have you tried connecting it to another Mac.