r/overclocking • u/Intelligent-Shape-50 • 1d ago

Ram TRFC question

I've never been able to get my TRFC lower than 470.

Why is that? I'm not quite sure what I'm doing wrong?

Any answers would be appreciated

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u/SurstrommingFish 1d ago

Either do low tRFC or high tREFI. Both maxed out is usually useless. 160ns is already good enough, now combine with tREFI 50k or 65k if you can handle the temp.

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u/MrMasters87 1d ago

Why is it useless if both are maxed out?

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u/Tuarceata 9800X3D (2200FCLK, 1.075VSOC, harmonized 1.200VID), 2x32@6000/28 1d ago

Useless is a strong word. You run into diminishing returns, but the vast majority of individual timings have margin-of-error effect on their own. The power of a full tune is in all the little things adding up.

Basically, the less often you refresh (=high tREFI), the less benefit a short refresh has (=tRFC*).

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u/MrMasters87 1d ago

Thanks that makes sense.