I have just swapped my ThinkPad for a late spec 2011 17" MacBook Pro, I am looking to upgrade the RAM to 16GB. Is there any reason I can't use RAM that runs at 1.5V? Does it need to be 1333MHz or can I use something like this http://www.scan.co.uk/products/16gb-(2x8gb)-vengeance-performance-memory-kit-ddr3-1600mhz-cl10
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