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Dear All! After upgrading my Mac Pro 3,1 with INTEL Quad Xeon 3,2GHz processors, 32Gb of RAM, USB 3 card and an SSD as startup disc, I installed iStat Menu to check whether or not my Mac Pro was doing OK. So far, a few points I worry about; I hope somebody out there might have a suggestion for me:

  • The “AMB IC FBDIMM in Riser A Slot 1 and 2” run at 128 degrees C all the time. Isn’t that too much?
  • Fans stay below 800rpm almost all the time. They would boost up in case the Mac gets too hot, right?
  • CPU A-core draws in about 25Amps, while B draws in about 50Amps. That’s way too much, right? I’m talking about idle mode here - no heavy lifting - although I do realise that the CPU’s rarely go below 13% load. Every help is greatly appreciated. All the best, Marco

A major upgrade like this requires you to resync the fans. This software is on your original system installation DVD.

Marco 128 C or F? If its C that is very hot! Fully Buffered DIMM (FB-DIMMs) can run hot and often require forced air cooling so you may have to add a fan and even look into heat sinks for the RAM if they don’t already have them. As far as your CPU’s I have read some things online that say that amount of current is possible it seems high to me but perhaps someone else could weigh in on that aspect of it?? Hope I helped a little

The “AMB IC FB-DIMM in Riser A Slot 1 and 2” run at 128 degrees C, because of the RAM that you installed on your system. It’s reading error from iStat Menus. Try different manufacture of RAM to find a better match for your system!