I just picked up a 2,66 ghx 1,1 Mac Pro for next to nothing and installed lion on a HDD for the OS. Although I am just using a 3,5” HDD it does seem a bit slow and when I go to the system profiler it states that the link speed it 3 gigabit but the negotiated speed is 1.5 gigabit. The same HDD showes up with a 3 gigabit negotiated speed on my Mac pro 3,1. I have heard a lot about negotiated speeds with certain macs and SSDs but never with HDDs. Is this normal and if not any ideas ?