The c2 and c4 seem to adjust automatically based on trfc, at least that was how my ASRock did it in Ryzen. Otherwise, just set at 256 and 192 or something.Should I work on bringing down the trfc2 and c4 values in a similar way?
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The c2 and c4 seem to adjust automatically based on trfc, at least that was how my ASRock did it in Ryzen. Otherwise, just set at 256 and 192 or something.Should I work on bringing down the trfc2 and c4 values in a similar way?
Thank you for the tip. I am upgrading from a 2500K so all new O/cing world. Making good progress. Going to do some stability testingThe c2 and c4 seem to adjust automatically based on trfc, at least that was how my ASRock did it in Ryzen. Otherwise, just set at 256 and 192 or something.
Can you run an adia mem benchmark. I am curious about your latency.
I can see that for sure..To me this is not impressive, however my 3900x, not pictured in this thread, is hitting around 67ns total latency which is from 3600bdie @ 14ns tweaked timings.
Here is the 3600 non x using Gskill Hynix CJR (C Die)
This is to be expected because as bandwidth increases upwards, if you are able to keep timing tight and mean, like 14-15ns at 3400+mhz ram then your final latency should also go down. So yes high bandwidth ram is superior on Zen 2 when using aggressive higher voltage and timings than just raw high bandwidth using XMP. XMP is chump settings. Guaranteed safe, guaranteed to under-perform.
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Thank you for the tip. I am upgrading from a 2500K so all new O/cing world. Making good progress. Going to do some stability testing
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already doing this. Had to tweak the voltage a bit but down to 68.2 NS and about 53000mb/s read on Aida. Not sure if it's worth tweaking much more. Gone from 72.3 to 68.2 NS just by tweaking my sub timing's. Pretty happy. I do have Samsung b-die 8gb single rank sticks.I would highly suggest you download Typhoon burner (to confirm what ICs your ram kit uses) and then take that and plug it into Ryzen Ram Calc 1.6 is the new version...
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Pick Zen2 for your CPU, the type of memory IC you have, if it's single or dual rank (again TB will tell you this but most 8GB DIMMs are single), and if you are on a 360/370,450/470/570 platform and the speed you want to attempt first ..
Then just click Fast, take a photo with your phone, and go into the bios and set alll the subtimings it gives you. I prefer the bios way but you can also modify them with Ryzen Master in windows if you want.
already doing this. Had to tweak the voltage a bit but down to 68.2 NS and about 53000mb/s read on Aida. Not sure if it's worth tweaking much more. Gone from 72.3 to 68.2 NS just by tweaking my sub timing's. Pretty happy. I do have Samsung b-die 8gb single rank sticks.
Here is where I am stopping. Pretty damn happy. 3600 is boosting to 3960-3990 on all core work-loads. 4060-4100Mhz for single or light loads. Memory is stable at 3533 and FI is at 1767 1:1 ratio and tight CL 14 timings. Getting a solid 68ns for latency.
Yep, your tRFC is about as low as it will go no matter how much voltage you throw at it. Your results are especially impressive considering you have an R5 3600 and a B-450.
Congrats on the poor man's 8700k and I mean that respectfully.
Linus did some testing as well with tighter timings. Below are his settings and results:
Tighten your Tras up to 28...what is your Trfc set to? Try 288...That will really speed things up and you should be able to do it since I assume you have b die. You should be able to run those timings at 34/66/3600 if you have SR sticks.
Your timings are really good but your latency seems a little high. It could be because you are running an x370. Try a higher freq, evening you have to raise timings a bit. Also, ensure you are at 1t in the bios for command rate. The software will always show 1t even if you are 2t.
I dont know how you guys are getting such high bandwidth. Im only pulling 54,200 read /29,200 write @ 3666 with these timings.
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Noticed its the 3900X guys with high bandwidth. I know about the write issue because of the chiplet design. But I'm guessing that your read bandwidth is higher also because of it also.
Damn thats some super solid latency. Only pulling 53,500 on write so don't feel badI dont know how you guys are getting such high bandwidth. Im only pulling 54,200 read /29,200 write @ 3666 with these timings.
View attachment 180533
Noticed its the 3900X guys with high bandwidth. I know about the write issue because of the chiplet design. But I'm guessing that your read bandwidth is higher also because of it also.
What are your current timings? Thats damn good latency if you are still using XMP timings...Finished tweaking the memory a couple days ago. This is my finalized 24/7 run. Still horse around with some things, but I've explored most of the chip and memory at this point.
3700x
ASRock AB350 Pro4, Bios 6.0 (much better bios than the 5.9, but they dropped official support for all first and second gen Ryzen if you update to this version)
OC'd the memory from 3200 to 3733
4.2 all core @ 1.4v
View attachment 180791View attachment 180792
Finished tweaking the memory a couple days ago. This is my finalized 24/7 run. Still horse around with some things, but I've explored most of the chip and memory at this point.
3700x
ASRock AB350 Pro4, Bios 6.0 (much better bios than the 5.9, but they dropped official support for all first and second gen Ryzen if you update to this version)
OC'd the memory from 3200 to 3733
4.2 all core @ 1.4v
View attachment 180791View attachment 180792
I think at 1440P and 4K its not gonna be much of a difference. Let me look through some online game benchmarks and see which are more memory sensitive with built in benchmarks and see if I can compare different timings and speeds with my B-Die and compare performance.It's fun to play who can get the highest or lowest number, but I would really like to know what numbers even matter and if Aida really is that great of an indicator for gaming numbers.
Just look at Steve's tuned 3000mhz kit vs thr unturned 3600 and 3800 mhz setups. It was often equal or better performance yet had higher latency and way worse write/read speeds.
I think speed/(cas*trfc) is the ticket for performance. Just not sure if that shows up as some kind of Aida or other software indicator.
What are your current timings? Thats damn good latency if you are still using XMP timings...
It's fun to play who can get the highest or lowest number, but I would really like to know what numbers even matter and if Aida really is that great of an indicator for gaming numbers.
Just look at Steve's tuned 3000mhz kit vs thr unturned 3600 and 3800 mhz setups. It was often equal or better performance yet had higher latency and way worse write/read speeds.
I think speed/(cas*trfc) is the ticket for performance. Just not sure if that shows up as some kind of Aida or other software indicator.
What were you using (timings wise) to get that 108 second run with the reported 3600 memory speed?
Just curious since that's a pretty big difference between 108 (and reported 3600ram) and the current 125 (reported 3600 ram as well)..
Really good latency! FYI going above 3600 has been proven to reduce all core and PBO single core boost.Well after tweaking timings I dont think getting much more than this out this Gskill dual rank stuff.
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Have only messed with my memory a bit. Running 4x8GB Corsair RGB Pro DDR4-3466 (32GB). It is B die, but lower tier stuff. Totally cannot run the recommended 1T settings in the DRAM calculator, cannot even boot (maybe a issues with 4 modules?). Still cannot complain, got them almost 2 years ago for my previous build.
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