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?
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?
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.
Check all temperatures, especially Northbridge. Inspect Northbridge rivets. You can see a bit of the 2nd when peeking with a flashlight under the heatsink
just fired up a Dual Mac Pro to double check.
CPU 2 Heat Sink to CPU 2 Die is a little high with 10 Degrees.
Fire up a stress test and monitor CPU 2 temps.
btw: Are those CPUs delidded ?
CPU 1 heatsink gets the colder air from the outside of the case while CPU 2 gets the warm air from CPU 1.They are delidded. CPU 2 has always run hotter, even before the upgrade.
Aren't they called CPU A and CPU B normally (and by Apple too)?
What is the software used in above screenshots? It's calling those CPU 1 & 2, and all this is a little bit confusing now because of that. What do they correspond to? If A=1 and B=2 then the temperatures are the opposite from most other users experiences and measurements.
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no the difference is 6 to 12 degrees and it is normal
I misread something Macschrauber said in post 187:
"CPU 2 Heat Sink to CPU 2 Die is a little high with 10 Degrees."
This lead to a mis-statement by me about CPU 2 being hotter than CPU 1.
I then (equally mindlessly) adjusted course after mikas' first reply. Obviously, I am in violent agreement with all points made there.
Apologies for any confusion this might have caused.
So now, I need to figure out why the difference between CPU 2/B Heat Sink and CPU 2/B Die temps is 10C. Perhaps I need to re-apply the thermal paste?
CPU A Differs less than CPU B, maybe a hint.
I get only a few degrees when the xeons are in lite use.
4 degrees on a single W3670 after 2 hours from diode to heatsink.
Check temperatures after a cold boot.
I think it's the opposite way (A versus B). Please see pics in post #190 .CPU A heatsink gets the colder outside air while CPU B receives the warm air from CPU A. CPU B will never have the same temperatures as CPU A and the difference between the two usually grow as your ambient temperature is greater.
You are right, had to open my dual CPU Mac Pro to confirm it. CPU B is the one nearer the front of the case, my idea of how CPU B is warmer was totally wrong.I think it's the opposite way (A versus B). Please see pics in post #190 .