Apple Event: May 7th at 7 am PT
Hi All,
I'm seeing a lot of memory available on ebay due MacPro 6.1 memory upgrades. It's the original memory installed in the MacPro 6.1: Hynix PC3-14900E 1866 MHz DDR3 ECC SDRAM.
Is it possible to use this memory in a MacPro 5.1 (8 core, 2.4 GHz)?
Regards,
Rolf
Mac Pro, iOS 8.4.1
The RAM from the late 2103 Mac Pro would be DDR3 ECC 1.5 Volt, running at 1866 MHz
The RAM from the Mac Pro 2012 would be DDR3 ECC 1.5 Volt running at 1333MHz
The RAM from the Mac Pro 2009 would be DDR3 ECC 1.5 Volt running at 1066MHz
>> IF and only if the RAM could step down correctly to run at slower speeds, you could use Mac Pro 2103 RAM in an earlier Mac Pro (2009 through 2012).
It is a compatible type, DDR3, and the key on the RAM slot would accept it, and it would do no damage (provided you did not use a Hammer during installation) but it may or may not work. The manufacturer must have taken steps to assure that the faster RAM would also run at slower speeds with the appropriate slower timing.
None of this would work in older 2006-2008 models that require matched pairs FBDIMMs, a different type with a different key in the memory slot.
It's work.
I have mac pro 6.1,and i upgraded its memory.
I put memory from mac pro 6.1 into 5.1,It's working compatibly.
Could you post more of a description of the DIMM that worked?
like who made the chips, how many RAM chips (the ones that are all the same), chips on one side or two, what is its size in GB, and if there is a maker of the DIMM itself?
Thanks!
MacRumors, someone had some memory from their 6,1 after an upgrade, threw it into 5,1 and is working - so OEM Apple 1866 DIMMs
There are a lot of different DIMMs of different sizes with different chips organized in different ways that are all "Apple OEM". Some work, and maybe some do not. I think it is too much of a stretch to say with certainty, "all Apple OEM work".
That is why I am fishing for more information about exactly which modules these were.
Wasn't trying to be covering every eventuality and comprehensive of every if-then-else, but I'll bet memory is fully downward/backward compatible, even with just a couple reports.
Same for server pulls of 667MHz FB-DIMMs are found to be dirt cheap and work and work in 2006-8 too.
Micron pc3-14900e-13-13-d1 1866MHz 4GB
MacPro 6.1 memory in 5.1
