Intel i5-4570 CPU compatibility with 2400 mhz memory ddr3 sdram - SPECS 1600 mhz max. Why? :(

unlocked k due to it can occ
MAX: ?My i5-4570 is NOT unlocked. It is not a K model. I never though it would require OC'ing my system to use higher frequency rated memory.
the others youd have to get the i5 4570 to occ to a way it can use the 2400
Max: Is there a way to overclock ONLY my memory to get my 1.65V 2400mhz? Is XMP made for that? Is my LOCKED i5-4570 haswell XMP ready?

ah that might be a problem the voltage

1.65v is not recomended for haswell or ivy bridge unless occing intel recomends 1.5v

and speed the board may accept 2400mhz memory and cpu may use it or it may downclock it to 1600mhz
and may downclock voltage to make it support the processor

Hi there,

Intel's Haswell microprocessors are tested up to DDR3-1600 at JEDEC standard voltage and timings. It is possible for the microprocessor to run memory at a faster speed and there are provisions for this on most motherboards, but functionality and stability is only guaranteed within the parameters that Intel designs and tests for. Even though the Haswell microprocessors are only tested up to DDR3-1600, almost all of them should have no trouble running memory up to DDR3-2133 without issue simply by activating the XMP profile contained on the memory module. Speeds above DDR3-2133 may require a little bit of extra tweaking such as increasing the voltage to the memory controller itself.

So yes, you can simply adjust it in the firmware settings. Please keep in mind though that running DRAM above DDR3-1600 in a Haswell microprocessor does involve overclocking the memory controller and care should be taken as a result.

The motherboard will handle it, the DRAM will handle it, but it is not guaranteed that the CPU will handle it. DDR3 is far more forgiving than DDR2 but anything above DDR3-2133 can be a bit hit and miss. Fortunately Intel's integrated memory controller is extremely robust.

The part that you may have to play around with a bit is the IMC or Integrated Memory Controller. 1.5 volts is the recommended DRAM supply voltage when stability is the primary consideration with standard 5% tolerance for an absolute maximum of 1.575 volts. When stability is not a primary concern the maximum supply voltage per Intel's IMC spec is somewhere around 1.8 volts and per JEDEC's DDR3 spec is around 1.9 volts. I've never seen modules require more than 1.65 volts though and I've been running that in my desktop for two years without issue. Keep in mind though that you shouldn't expect datacenter levels of stability here, your system may run Prime95/Memtest for a week without issue and then crash randomly. That's just a risk of running high speed memory; bit error rates are exponentially higher.

With that said, the additional stress that DDR3-2400 places on the IMC over its tested DDR3-1600 may necessitate increasing the supply voltage to the IMC itself. I do not know what it is on the Haswell microarchitecture but on my 3960x I have it set to 1.15 volts which is slightly above its default. I would not exceed 1.2 volts on the IMC and even this much should not be necessary but if I recall correctly 1.4 volts is the absolute safe maximum.

Finally, the PLL which generates the DRAM controller clock and IO bus reference clock (it'll be 1200Mhz for your DDR3-2400 modules) may require a slight boost of about 0.1 volts.

You may want to get a second opinion on the voltage levels for the IMC and PLL from someone who owns a Haswell microprocessor.

All of this will add a small thermal footprint. Not enough to worry about though.

As I mentioned above, caution is paramount when overclocking. Damage is rare, especially when playing with only the DRAM, but you wouldn't want to end up with an Intel i5-4570PE (Paperweight Edition).

tridents lateny timings are technically slower then most 1600mhz memory

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