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So, while these DDR3 kits should be a go, apparently they're not. However, the specs list for mushkin's “2GB DDR3 1066 (PC8500) Memory For Apple Model 971643A” makes no mentioning of the unibody notebooks introduced this October. “I think there must be something that Apple is writing to the SPD area of memory, or the CAS spec is different from the ones that I purchased,” chloe2 adds. Cost was $135 for the mushkin (and it was specifically stated for Apple Macbooks that took DDR3 SODIM 1066 memory.) The Apple store gave me the same price, but I had to turn in my 2G of original Apple RAM,” the user writes. I ended up getting RAM from Apple, and have had no freezing since. “This ram caused freezing, so I returned it. “I bought mushkin 4GB (2 x 2GB) DDR3 1066 (PC8500) Dual Channel Kit Memory For Apple – Retail from ,” goes a post signed chloe2. Speaking of which, here's an Apple Discussions poster, and owner of a Late 2008 MacBook 2.4GHz - Mac OS X (10.5.5), sharing his experience when trying to upgrade using a third-party kit for “Apple” computers: However, RAM kits sold by OWC are listed as follows: “4.0GB(2x2.0GB Kit) PC-8500 DDR3 1066MHz SO-DIMM 204 Pin Memory Upgrade Kit for Late 2008 MacBook, MacBook Pro.” The Late 2008 MacBooks, as avid Softpedia readers should know, are Apple's latest introduced notebooks, whose owners are experiencing all this fuss. OWC, for instance, has recently introduced a new Mercury SuperDrive, touted as compatible with most MacBook models (except for the late 2008 "Unibody" SKUs).
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RAM kits coming from companies like these are supposed to work flawlessly with Apple hardware - they are advertised as specifically aimed at Apple notebooks.
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Apple Mac Pro 2013 models utilize thermal enabled ECC-Registered and ECC non-Registered memory.
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4.0GB OWC MEMORY UPGRADE KIT FOR MAC
OWC Memory for Mac Pro 2013 fully meets Apples specifications with special attention to proper thermal specifications. This OWC memory kit is compatible with MacPro 2013. Nevertheless, users have went on good faith and bought RAM upgrades from specialized vendors like OWC and Crucial, who make a business around Macs. The OWC 1866D3R9M64 is a 64GB memory upgrade kit consisting of 4 x 16.0GB memory. the usual laundry of issues when “don't mix” hardware is used. Symptoms are system instability, lock-ups. Mac-focused sites are pointing out to an Apple Discussions thread, which, according to the sources, is reporting problems with third-party RAM upgrades.
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