MP5,1 firmware defines SATA native ports as IDE and not as AHCI for Windows CSM mode. But this is not the motive of you getting half the expected throughput, it's because MP5,1 SATA ports are SATA 300.I bought a 2.5” Samsung 860 Evo that I was planning to run Boot Camp off of, but AHCI isn’t enabled for it and I’m getting half the rated speed. How can I enable it in Windows?
Jay did it, if you have facebook, you can check this out.I picked up a 5,1 Mac Pro at a University Surplus sale. Trying to diagnose non-boot issues. (I push the start button and get absolutely nothing.) Seems it is likely to be the PSU. Tried to test with the paper-clip test (found where someone else located the wired equivalent to ATX Green wires) and I was not apparently getting anything.
Which leads me to this -- Anyone tried to rewire an ATX PSU into Apple's proprietary PSU harness?
Alternatively, is there a good place to find PSUs?
Seems like PSUs may be the weak point in a lot of these in the future, and I was wondering if anyone had found the solutions yet.