Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Robert Filippi

macrumors newbie
Original poster
Jun 16, 2020
2
0
Hello,
I have a Mac Pro quad-core 2009 4,1 upgraded to 5,1. I’m looking at buying a CPU tray - Apple Mac Pro 2009 Processor Tray / 3.46 GHz 6-Core Intel Xeon / 64GB Hynix RAM from the USA, and I’m in Australia. Would I encounter any problems with the power? I’m assuming that all connections are the same on the trays. The output power supply in the Mac would be the same in any country, regardless of input power, am I right?
Thanks for your help
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
Your Mac Pro supports a dual CPU tray from factory. Everything inside the case is made to support both trays, it's the same PSU or backplane, nothing changes.

You need an early-2009 dual CPU tray. Mid-2010 and mid-2012 CPU trays have a different SMC firmware version (not upgradeable) and when installed with a early-2009 backplane the SMC mismatch causes all the fans to works at full RPM, full time.

Both the backplane and the CPU tray have SMCs and you have to match the firmware versions for it to work correctly, with a mismatch the SMC enters fail-safe mode and fans go to full RPM.
[automerge]1592360136[/automerge]
Mac Pro:Model number:SMC firmware version:
early 2009MP4,11.39f5
mid 2010MP5,11.39f11
mid 2012MP5,11.39f11
 
Last edited:

Robert Filippi

macrumors newbie
Original poster
Jun 16, 2020
2
0
Thank you for your information, I'm not sure if I wrote my question clearly, I apologize for this. I wanted to know if there would be any power issues buying the tray from the USA, as I live in Australia, thanks
 

Jiggly Billy

macrumors member
Nov 2, 2012
87
38
Thank you for your information, I'm not sure if I wrote my question clearly, I apologize for this. I wanted to know if there would be any power issues buying the tray from the USA, as I live in Australia, thanks
You will not. They're all the same machine, the power supply is even the same in both countries.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.