ozzyau Posted November 15, 2010 Share Posted November 15, 2010 Hi all I have a CMX8GX3M2A1600C9 intentionally running at 1333MHz (despite this being 1600MHz kit - I only need 1333MHz at most, and with a 1-2 week ETA on 1333 kits, I got this 1600 at the same price). The timings are tightened up by default with Gigabyte's BIOS option for 'Performance enhance' left on "Turbo", which gives 7-7-7-20-1T. I have manually set the voltage to 1.64V (no 1.65V option). It is running fine and tests fine with my usual trio of prime95,memtest/linpack. Now if this is running with a stock i7 (socket 1156) Lynnfield processor, which has a QPI/Vtt voltage of 1.1V per the BIOS, would this break the rule about having a less than 0.5V differential between QPI/Vtt & DRAM voltage (if DRAM is 1.65V)? However, on one of Intel's motherboards, they specifically reference a maximum 1.65V for the DIMMs used on the Intel motherboard. Given there would be many Intel motherboards and Lynnfield processors in use, along with some 1.65V memory kits, it would seem this reported voltage differential rule isn't an issue if Intel's documentation for their own boards states that it supports DIMMS "with a voltage rating of 1.65 V or less". Would that be a fair assessment? Link to comment Share on other sites More sharing options...
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