CPU-Z identifies my memory as PC3-12800H (800 MHz), which seems to be correct. I did succeed in grabbing the XMP timings and overwrote the standard timings. I found SPDTool ( ) and Thaiphoon Burner ( ), where the former does not work on a MacBook Pro but the latter does. There are a few tools available for the job. This lead me to the question of whether one could flash the SPD table and make modifications to it. This is something the Apple BIOS/EFI doesn't support.īut people are running MacBook Pros at DDR3-1600! Even with a slightly different version ( ) of this memory module. It turns out that this particular memory module relies on something called the SPD XMP Extension. Sadly, when I was booted into either OSX Lion or Windows 7 Ultimate (both 64-bit) the memory was still only running at DDR3-1333. I briefly checked that the Intel specifications stated that my CPU should support memory speeds at DDR3-1600, so I ordered a Kingston KHX1600C9S3K2_8GX ( ) I opted for the CPU upgrade (2.3 GHz), but decided to put in the extra memory myself. I have an early 2011 17" MacBook Pro (MacBookPro8,3).
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