New Probay is VERY slow! Firmware update?

[appleboxes]

Hi, I ordered a new Probay, and it is extremely slow. I had one already that is working great, and the drives inside get anywhere from 120-180Mbps. However, the new drive only gets about 38-40. I’ve tried all different drives, including the fast ones from the first bay. This new one is just always super slow.

My system profiler shows the firmware on the two bays is different. How do I update the firmware on the slower one?

Thank you!