On the Apple Store website it warns you against buying third-party RAM for your Mac Pro: "Please note: Apple created a more robust thermal specification for the Mac Pro FB-DIMM heat sinks that provide more efficient cooling than many other FB-DIMMs. These FB-DIMMs require less airflow to stay cool and allow the internal fans to spin at slower speeds, improving system acoustics. FB-DIMMs made by other manufacturers that do not include a sufficient heat sink may cause the fans to run faster (and louder) or the memory chips to run slower so as not to overheat." What is the brand, if any, of the chips included with the Mac Pro as shipped? What third-party chips run at a good temperature? I am concerned with the acoustics, actually, and want to keep those fan speeds down. Also seeking low-noise drives, if anyone wants to post a good suggestion.