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post #1 of 7 (permalink) Old 04-30-2020, 05:49 PM - Thread Starter
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RAM timings changing? Need some input.

First off, hey everyone! This is my first post here to overclock.net after a year of lurking and reading and also after much use of reddit and getting a bit sick of the glut of misinformation there.


Since this is my first time here please direct me to the correct forum to make this post if this is not it.


Here are my system specs: https://ca.pcpartpicker.com/list/mJJPGc



I have recently upgraded my CPU and RAM. I've noticed huge improvements in general but have also noticed some stuttering in games. This stuttering has been happening for a while and was actually part of the reason I upgraded, I thought my CPU and RAM were holding back my GPU. Now that I have some really great hardware there should be no reason to see stuttering in games any longer and yet here I am.


I think I have found a symptom that may have to do with this and would like some confirmation about whether or not this is normal behaviour so I may better direct my search for the cause of stuttering. According to HWiNFO My RAM timings are changing randomly while using my system, this is a behaviour I have never seen or heard about before and so I am here to ask if this is normal? If not, what is there to do about this? What can cause that?


Screens of the weird RAM timing changes: https://imgur.com/a/Ag0X9jA
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post #2 of 7 (permalink) Old 04-30-2020, 06:10 PM
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I've never seen RAM do that. Are your your timings manually configured, XMP, or auto? If they're set to auto, you could try enabling the XMP profile or setting them manually in BIOS and see if that helps.

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post #3 of 7 (permalink) Old 04-30-2020, 06:14 PM
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My NUC does it (and the reported RAM speed will fluctuate too) but I'm fairly certain it's just an issue with the timings/speed reporting wonky and not the timings/frequency actually changing since Super Pi runs are still consistent.

Run Super Pi 1M ~10 times, if the run to run variance is less than ~150ms it's likely just a reporting issue.

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post #4 of 7 (permalink) Old 05-01-2020, 07:55 PM - Thread Starter
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So in those screenshots I had XMP set and had left timings at auto like you should with XMP. I've now gone in and turned off XMP and have set timings manually after using 1usmus's DRAM calc for 3200 'fast' and have not seen the weird changes yet, though I will keep testing. After using the calculator stutters have improved drastically but have not been completely eliminated. Makes me think it's a RAM issue that is causing these stutters and was right to assume the changing timings were symptomatic of that. As mentioned I've changed CPU and RAM and experienced stuttering before and after. Could this be a motherboard or BIOS issue? Since the stuttering has improved after manually setting timings could this be a problem with the X470 Gaming Plus? It is a pretty budget mobo for X470...



Thank you both Pook and Mojo for chiming in, appreciate it.


Also Pook btw, I tried running Super PI and my deviation was right around the .150 sec mark, just a bit over. After setting timings manually deviation has decreased to about .80 sec. Perhaps look into your NUCs timings as well if that motherboard allows advanced DRAM config.
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post #5 of 7 (permalink) Old 05-01-2020, 08:02 PM
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There is a setting in the ASUS bios that says something to the effect of "Real time RAM timings". You could try disabling that.

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post #6 of 7 (permalink) Old 05-02-2020, 04:56 PM - Thread Starter
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My boards an MSI model, do you know if MSI has something similar?
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post #7 of 7 (permalink) Old 05-08-2020, 12:03 AM
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Quote: Originally Posted by d00m3d1 View Post
My boards an MSI model, do you know if MSI has something similar?

have you locked them in Bios so they go 1:1 ? FCLK Frequency etc, Memory multiplier etc

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