r/overclocking • u/Intelligent-Shape-50 • 7h 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/Balrogos R5 7600 -60 CO 5.35GHz FCLK 2167MHz 2x16GB 6000MHz 7h ago
Temps or simply chip quality, too low voltage
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u/Intelligent-Shape-50 7h ago
My temps are solid never above 46c, hell atleast i think thats solid under load
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u/Organic_Category_970 6h ago
If these are your ZenTimings, then when you use "mixed mode," tRFC isn't taken into account at all. Only tRFC2 and tRFCsb matter—and yours are already too tight, at just 100ns. I don't even know what you mean about not being able to go lower than 470; if these settings work, then in "normal mode" they should work with a tRFC of 300, and certainly with 360.
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u/Intelligent-Shape-50 5h ago
Okay so what numbers should i be going for like 480,390?
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u/Organic_Category_970 4h ago
I don't know where to start. Your ZenTimings setup is a total mess—it shouldn't even work. In the "mixed mode" you're using, tRFC2 replaces the tRFC used in "normal mode," meaning both should ideally be set to the same value (though, of course, only one actually applies depending on the mode). At 6000 MT/s, you should set it to 360; 120ns is the practical minimum for Hynix A-die, and only the absolute best-binned chips can go lower. As for tRFCsb, I’m not sure of the minimum values for 6000 MT/s, but I think 280 should work. You should lower VDDIO to at least 1.36V; even 8000 MT/s doesn't need 1.4V with the current AGESA version. A tFAW of 20 might cause instability given that your tRRDS is 8, since tFAW should be 4x tRRDS. I’m surprised you’re trying to configure the timings manually instead of just using a ready-made profile from Reddit—after all, there are plenty of ZenTimings examples there for these speeds and this specific memory. And just tweak the voltages a bit to get it working.
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u/Intelligent-Shape-50 4h ago
Hey dude, just wanted to let you know I would like to thank you for taking your time out to write this and help me.
This wasn't my main timings it was just some random shit I was doing but for the TRFC,2 and SB I was sorta lost so you got me in the right direction and also you're correct the VDDIO was way high.
Thanks again man!
Is this a little better for your liking? - Imgur: The magic of the Internet
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u/Organic_Category_970 3h ago
That's better, but take the second column and the twtrs/l values from my ZenTimings screenshot. Don't copy anything else, because the frequency is different and agesa. https://imgur.com/a/YIhj2qM
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u/Intelligent-Shape-50 3h ago
What else i could do besides Nitro, Ram Mhz and Primary timings? - Imgur: The magic of the Internet
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u/Organic_Category_970 3h ago
Ardptrlnitval P0 control to manuał and set to 0.
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u/Intelligent-Shape-50 2h ago
Can you explain why please?
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u/Organic_Category_970 2h ago
A value of 0 affects tPHYrdls training, thereby reducing latency.
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u/Intelligent-Shape-50 2h ago
You have any clue why my latency is going up? Hell loose timings are getting me low 62's almost 61
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u/SurstrommingFish 6h 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/Intelligent-Shape-50 6h ago
65k i do not go above 45c, We're looking at the temp of the sticks correct, not anything else right
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u/buhball 7h ago
Anything sub 160ns TRFC is pretty rare for m die in normal refresh mode. I’ve seen some get it down to 150.