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Der8auer has a video on 3 x Zen3 cpus he ran for 4000+ hours at 1.4V,with little to no detrimental effects. Not Zen4, but the only "study" I know of.
It's for Vcore, newguy1 asked about VSOC
 
Anyone else had a recent bios update that has like notes like below?

TUF GAMING X670E-PLUS WIFI BIOS 0821
"1. Update AGESA version to ComboAM5PI 1.0.0.3 patch A + D
2. Improve DRAM compatibility
3. Improve system performance

Normally see the temp fly to the moon to 80c+ even in cinebench but after I updated the bios, I only just noticed how much better the temps are?

View attachment 2586325
Since Zen 5 is designed to operate at over 90C, the only thing you are telling me is that your chip isn't running at optimal speeds.
Found a neat trick not sure if it was used in previous gen Zen CPU, but it will improve multi-score pretty good if you use PBO.

Originally limited my temp to 85c in the bios and did the PBO's setting from Optimum Tech video "Fixing Ryzen 7000 - PBO2 Tune (insanity)"

I was testing my CPU to optimise the PBO setting and realised setting the temp to '75c' in bios actually improved overall multi score.

If you think about it, once the CDD1 hits 75c, there is more power available then which is allocated to CDD2 which will make it clock higher, which would bring the overall average of your multiscore higher while having better temp as well. Obviously CDD1 clocks will be lower (not by much), but we're looking to achieve better multi-score overall.

Hope more people can test as my sample is really low and I only used Timespy CPU test to try it

Timespy with 85c vs 75c

View attachment 2586663
Great, now test it in 7zip, Blender, Handbrake, Rapydmark, etc. Then get back to us about how much 'faster' your CPU is.
It's for Vcore, newguy1 asked about VSOC
A special note here. Zen 4 is on a different process, so what applies to Zen 3 most certainly does NOT apply to Zen 4. Don't read anything you see in forums or other social media and take it for granted, unless you have money to spare on a new CPU. I personally would not be comfortable running Zen 4 at anything over 1.25V with a static overclock, and a 7950X costs slightly less than an hour of my current pay.
 
I'm on latest bios, awating for a newer one with tREFI option for fine tuning RAM, already contacted MSI support asking for it.
Fortunately we still have ESU, the Power Unit in Joules; that's why CoreFreq managed to read, per Core, the consumed energy.
What remains unsolved are PPT, TDP envelopes.
The known HSMP/SMU registers don't provide something on 7000
 
I'm starting to wonder if my DRAM stability problems might be related to DRAM impedance (which isn't something I've ever tested before).

I tested RZQ (240Ω) for all DRAM ODT settings and my system wouldn't boot.
RZQ/2 - Boots, but failed stability test very quick.
RZQ/3 - failed stability test in a few minutes
RZQ/4 - took a bit longer to fail

RZQ/5 - Seems to be stable. Will see.

Presumably, RZQ/7 should work fine also.
 
Great, now test it in 7zip, Blender, Handbrake, Rapydmark, etc. Then get back to us about how much 'faster' your CPU is.
Its a few seconds faster on handbrake, not tried it on blender or the others you mentioned.

Since Zen 5 is designed to operate at over 90C, the only thing you are telling me is that your chip isn't running at optimal speeds.
Not sure but it is still doing better than majority of 7900x CPU with 3080ti using Timespy which works for me, no crashes or anything so ya know.

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It won't boost over 5.5 no matter what load and temperatures ? I could be wrong but i think i heard somewhere something about C-State needs to be either on or off with latest AGESA ? On my Asus board theres an option called Medium Load Boostit that removes that 5.5 limit "bug" or "feature" not sure how to call it :)
After enabling it and +200 offset in PBO, 5.7-5.75 works in games without problems, even in games capable of using multithreading and drawing lots of wattage like Hitman 3.

That's interesting, i will have to try that out, I can't get it to boost there. Is C state and boostit different things? Did your temps increase much?
 
ive been reading this thread from around page 28, Im running a 7600x with a taichi x670e and 64gb's of Hynix M-die. AND I CANNOT FOR THE LIFE OF ME GET 6400mhzMCLK=UCLK/2133mhzFCLK. ive tried autoing timings, 1.35v-1.4vSOC, No PBO, no CO. Aggressive Supportive Voltages such as MISC etc.

But! i have some faith there is something, somewhere i can do to stabilize it.
Like for example, to Run 1t GDM off on previous Zen. You had to enable 60-120ohms on Clock drive strength for 3600mhz+ 32gb's or higher.

I think there is a signal resistance, or some sort of Bank addressing that can be manipulated to stablize 6400mhz with 64gbs of ram. Like its stable, for hours, Days even. and all of a sudden it will crash a game, or hang software that i try and close.

im sure of it, that it will be identified how to stablize Zen4 with 64gbs in higher frequencies.

What have you guys done to get 64gbs running stable @ 6400mhz?

I have so much more to say about this topic, But i have not ingested enough architectural knowledge of this platform to be confident enough that i have exhausted all options. I can boot 2200mhz FCLK.. Idk, i think zen4 is capable enough that the far reaches of consumer discussion should be these ultimate limits such as the ones im stating above.

But due to a lack of interest in new platforms there is little crowd wisdom available for me to better understand this current platform. I think, that FCLK and the ram to match it obviously is the highest discerning gaming performance increaser, that allows the cpu to pull frames, all adjacent cpu memory is very important (FOR GAMING). look at X3D, the frame rate difference is minimal between 3200 and 3600mhz RAM because throughput is already being saturated by the large Vcache package. this should be hot topic god damn ppl.
 
I'm starting to wonder if my DRAM stability problems might be related to DRAM impedance (which isn't something I've ever tested before).

I tested RZQ (240Ω) for all DRAM ODT settings and my system wouldn't boot.
RZQ/2 - Boots, but failed stability test very quick.
RZQ/3 - failed stability test in a few minutes
RZQ/4 - took a bit longer to fail

RZQ/5 - Seems to be stable. Will see.

Presumably, RZQ/7 should work fine also.
Guys, I've been testing my system in Aida64 and prime95 stability tests for a few hours each, and so far, no crashes when RZQ/5 is set to all DRAM impedance options.

SOC voltage now at 1.3v.

Is it possible that incorrect (default) settings for DRAM impedance were causing my PC's stability problems, all along?

Also, what does RTT_off mean? For some of the DRAM impedances, this is the default setting on my motherboard + DDR5 modules.
 
So out of curiousity since everyone seems to be getting good results with memory OCing, I'm guessing it gives a decent boost? My experience with Memory OCing was it was usually a pain in the you know what

7950 gets here tomorrow, wasnt planning to mess with Memory OC but if everyone else is having good luck maybe ill take a crack at it
 
So out of curiousity since everyone seems to be getting good results with memory OCing, I'm guessing it gives a decent boost? My experience with Memory OCing was it was usually a pain in the you know what

7950 gets here tomorrow, wasnt planning to mess with Memory OC but if everyone else is having good luck maybe ill take a crack at it
Memory is what can get you best improvement these days since there is so little cpu OC headroom and xmp mostly sucks. ( not everything responds to memory though)
 
Memory is what can get you best improvement these days since there is so little cpu OC headroom and xmp mostly sucks. ( not everything responds to memory though)
Is there a good master thread or guide to go with so i have a starting point? Havnt built with DDR5 yet
 
Assuming you have ryzen 7000. I would suggest just sticking it too 6000mhz, with an FCLk of 2000mhz. And chucking on your XMP timings manually rather than enabling XMP/EXPO.

And in a bios update or 2 give ram oc a go.
 
I wonder if the ability to run above 2000 Fclk with stability is influenced by the quality and specific model of AM5 motherboard?

Maybe it's more likely to be achieved on B650E or X670E boards? The PCBs on these are supposed to be higher grade than B650 boards.
 
With rumours of the next X3D parts coming out.. i do wonder if AMD needs to have a 64MB layer of L3 on top of the existing 32MB (for the 96MB total) or if they could achieve 90% of the performance gain with just adding another 32MB. Past 64MB L3, i wonder how much more performance do you really gain and is it worth that insulating factor over the cores blanket that increases the heat.

Always thought the 5800X3D would have had a massive boost w/ just 64 MB total L3 and would run cooler and benefit from the increased frequency boost more then extra cache but i would like to see actual numbers support that.
 
I'm providing a change for Vcore and probably Thermal readings; can you please pull and try latest develop branch of CoreFreq ?
It shows voltage now although it's fixed at 1.55V, no temp reading yet.

Image
 
I'm sorry to probably reask the same thing again, but TL;DR or reference to posts work as answers.
Short summary: I am set on getting the 7950X, my workload dictates 2 GPUs so I need at least PCIe 4.0 x8 on the second one, I will require 4 SATA III and at least 3 M.2 ports.

First question:
I've done some preliminary research given our relatively limited motherboard supply here in Bulgaria, but I haven't been able to pinpoint one that wouldn't break the bank.
Can you guys give me advice on any X670/X670E motherboard that would meet the requirements set above? So far unless it's in the 850-900 € ballpark, I haven't been able to find one motherboard that ticks all the boxes, I would really like something in the tolerably expensive range (500-550 €). Q-LED display is a big plus, I don't need any big enthusiast OC features, such as voltage readouts and whatnot.

Second question:
With 2 banks populated, have you guys have had any issues with any specific memories @ 6000MHz? I am looking at a Kingston Fury Beast Black kit that is specced 6200MHz CL 32, at a suspiciously low price (~250 € for a 32GB kit), and given my X370 AM4 experience, this triggers a warning to me.
 
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