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Problem with my RAM

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flo88 Posted messages 28481 Registration date   Status Contributor Last intervention   -

Hello,

I have a problem with my RAM, so I bought Corsair Vengeance RGB Pro 3600 MHz 2x16, but my PC is limiting it to 2666 MHz even with the XMP profile activated, and yet it says on my motherboard box that it can go up to a maximum of 3000 MHz (i3 10100f, MSI GTX 1660 Super, MSI B460M A Pro). I noticed that in the RAM tab of the EZ mode in MSI Click BIOS 5, there is a setting called "PCH Limit" and it says "2666" next to it. I have watched several videos but found no information on how to disable or increase the PCH Limit, and I have seen that for many people it says "no limit" instead of 2666. So I would really appreciate any help on this matter.

Thank you very much.


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flo88 Posted messages 28481 Registration date   Status Contributor Last intervention   Ambassadeur 5 168
 

Hello

There is often misunderstanding regarding RAM management in a PC.

The limit frequency of DDR is defined by two things, the motherboard and the processor because it is the latter that houses the memory controller.

In your case, the i3 10100F does not support RAM beyond 2666MHz, which is normal for this range of processors.

In any case, the difference in perceived performance between frequencies, as long as we are on the same technology, so DDR4 here, is almost non-existent; in any case, these are differences only noticeable in benchmarks.

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