CPU Recommended Voltage vs RAM Voltage

The i7 4930k processor has a recommended voltage of 1.5V+-5%. But for example the G.Skill Ripjaws Z series 2133MHz (4x8) run at 1.65V. Now, from what I've read, using higher than recommended voltage will work, but, will greatly reduce the CPU's life time. I am just wondering by how long does that lifetime reduce (If it even does?)

From what I know, that RAM should run at 1866 by default because of the CPU. Unless manually over clocking the RAM in BIOS. Would running at at 1866 or 1600 also reduce it's voltage usage?

This is bugging me for some time, any good explanation would be appreciated. Thanks.
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  1. my understanding is, suggested is different from maximum. so personally, i stay away from max voltage, i OC but with low voltage (as possible)
  2. If I were you max, I would buy the 32gb kit of 2133 tridents, I think they run at 1.6v, and I will bet you 2 shiney nickels they will run at rated specs at 1.55 or real close to it.

    That being said no one has any information about "significantly reducing lifespan" at this point in time as none of the CPUs have failed due to this yet :)
  3. Best answer
    The DRAM will initially default to whatever the mobos default is (generally 1333, maybe 1600), simply enable XMP and select profile 1 to get to 2133. As far as the recommendation for 1.5, that refers to the CPU at stock and with 1600 DRAM - I generally recommend 1.5 for 1866 and under, 2133 and up you are fine with 1.6-1.65 sticks, and no, have never seen a CPU that had it's lifespan reduced from from standard DRAM voltages - when getting into extreme OCing and taking DRAM up well above spec voltage, yes it possible, though those are normally idiots or extreme OCers just testing to see the full limits
  4. Thanks for those answers people. Finally can get that out of my mind.
  5. Let us know how it goes ;)
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