Need Help with Mounting 3 TB drives

Have a problem with Mounting /seeing full 3TB drives
THE GEAR
#1- Macbook Pro 13" mid 2010 Mavericks 10.9.1
#2- Macbook Pro 13" late 2011 Mavericks 10.9.1
1 usb2/esata 2 bay hot swap dock
1 seagate Backup plus 3 TB with enclosure
1 WD 3 TB HD
2 Seagate 3 TB HD's
PROBLEM
The #1 Macbook sees, formats reads writes etc to all four 3 TB drives fine
The #2 Macbook will read write format etc to the Seagate Enclosed hd fine but will only see 800MB of the other 3 drives
Any help would be appreciated

My standoffs are built into my case. My question is really a question about grounding my motherboard. I guess I should have clarified.
My question is, my moterboard is only touching metal at these standoffs, is that how the motherboard is grounded? Or, is this going to fry my board?
From other posts I have looked at, this seems fine and how the motherboard is suppose to be grounded. But, I am scared I am going to fry my new computer and don't want to make that mistake. So, I was just wondering if it is proper for the motherboard to be touching at the standoffs, of is that wrong?
Thanks

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My standoffs are built into my case. My question is really a question about grounding my motherboard. I guess I should have clarified.
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