3900x overclock

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Ryzen x overclock?

Illus1onz said:

I’m pretty new to Overclocking and just reading how to is very confusing. There’s seems to be different ways of doing it as for as static clocking and using ryzen master. What I’ve done so far is change my cpu multiplier up and set the Soc voltage around After reading people are saying static Overclocking is bad for single core performance and you lose mhz on a lot of your cores. My question is what is the best method for Overclocking the ryzen x especially if you plan on gaming, thank you?

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TheLostSwede said:

In all fairness, it's not much of a point to overclocking the Ryzen series.
Sure, there are a few guys here that have had some success, but for most people, the performance gain isn't really worth it and it's apparently quite easy to damage the CPUs.

The best way is to make sure you have a really good CPU cooler that allows the CPU to boost itself as high as possible. My X boosts higher than max boost clocks at times, obviously for a few ms here and there, but still

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I would leave SOC alone, it has more of a direct link to dram. I had better success leaving it at
All clock OC isnt worth it but per CCX really pays off with superb temp
But yes, it is more complicated and time consuming. Mainly as a good per CCX OC will also rely on your board VRM capacities (voltage compensation) as well as good cooling
From what I understood also, depending on your cpu there is a certain maximum frequency difference you can have in between what will be your higher clocked ccx and lower clocked ccx for stability
being 25mhz for Ryzen 5 and Ryzen 7, mhz for Ryzen 9 'X' , for the 'XT' and for threadrippers

So, I watched how they behave for a long time and then decided to give it a shot to a manual per CCX overclock on my Ryzen 9 x
Those were tested on a Asus tuf bplus with 32gb of mhz RAM overclocked at mhz cooling was a good old nh-d15

Even if I didn't feel it quite stable enough to present it here or keep it as a regular profile, I did achieve as high as on two CCX out of my four, the lower two finishing at and respectively while keeping my idle temp around 38 and load around

This is what I ended up as a totally stable and performant profile that I still use.

Core VID:

CCX1:
CCX2:
CCX3:
CCX4:

LLC level 5

CPU capabilities %
optimize cpu phase
extreme soc phase,
switching frequency

It comes with magnificent idle temp around and load barely hits sometimes

as for number I achieve at cinebench20
I also took some cpu scores and physics score from 3dMark

anybody got different results or experience?
kinda curious if there's tweak I havent thought of to get even more out of it

 

Sours: https://www.techpowerup.com/forums/threads/ryzenx-overclock/

"If AMD were so confident in the pronouncements you describe then could you also explain to me why the very use of PBO voids the AMD warranty for their CPUs?"

Because AMD has no idea which processor you are using.  While enabling PBO and auto-overclock is useless on the series due to FIT, the series will not be limited in that capacity.  

" cannot in good conscience recommend the AMD statement to him which, to me, appears to be a self-serving document allowing for a hypothetical over-volting of the system, to reach clock-speeds allowing it to be competitive, whilst at the same time stating that if you trust these documents and run your system in accordance with them then you void your warranty and if something goes wrong then you are SOL."

To be clear, the score I posted above (, ) was run with precision boost only, not PBO.  As I said, in the series enabling PBO and auto-overclock doesn't do much as the CPU is already FIT bound.  Running without PBO does not void warranty, so no problem there.

"Why would anyone trust the AMD document when AMD itself will not support that document in the form of a warranty in alignment with what is stated there? The warranty tells me that AMD has absolutely no confidence in its statement with regard to the silicon fitness monitoring of its CPUs."

Again, the run I presented was not with PBO as I stated right below the Cinebench run.  No warraties need to be voided.

"This was my reason for limiting the performance of my friend's CPU to be in line with the spec of the 7nm node as expressed by TSMC and this allows me - and of course others - to configure the CPU optimally whilst remaining within that spec, whereas any and all methodologies supplied by AMD in the form of PBO and Auto Overclocking voids the warranty of their CPUs."

Again, you don't need to use PBO and Auto-overclocking, in fact I recommended not using them as they do nothing in the series.  An excerpt from above in caxse you missed it. 

"That is without PBO or auto-overclocking enabled.  Like you, I don't really find that they do anything for Ryzen series processors.  I think I am slightly EDC bound, and with PBO enabled multicore goes to   Single core scores are unaffected."

Do you have the white paper from TSMC?  Is there V spec for high curent or low current loads?  Both?  I personally haven't seen it, so I was curious if you could forward a copy.

Sours: https://community.amd.com/t5/discussions/definitive-guide-to-configuring-the-ryzenx/td-p/
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Precision Boost Overdrive, AutoOC, and Ryzen Master Software

AMD's Precision Boost Overdrive (PBO) is a boon to enthusiasts with its adaptive overclocking approach, and it's making its way from the Threadripper platform to all of AMD's Ryzen processors. The software allows the processor to communicate with the platform to modulate performance based on the motherboard's power delivery subsystem and thermal dissipation capabilities.

The processor monitors Package Power Tracking (PPT) and Thermal Design Current (TDC) variables, measuring available margin to the motherboard's maximum power output and current, respectively. Electrical Design Current (EDC) also indicates the maximum current possible from the VRMs during peak/transient conditions. A control loop feeds real-time telemetry data back to the processor, which then dynamically adjusts performance based on thermal and power conditions. AMD also exposes some of these monitoring features with its Ryzen Master overclocking software.

Motherboard vendors define the power limits for their boards and are developing custom profiles that support a new Auto OC feature. This new feature grants you some control over the maximum attainable boost clocks by allowing you to add up to an extra MHz to the maximum boost clock, but it isn't guaranteed that the processor will reach those speeds at all times, or under all conditions. Instead, the processor will still respect the limits imposed by the motherboard maker. AMD says that Auto OC is designed to improve performance in single-threaded workloads, while PBO boosts heavily-threaded applications. In either case, you can toggle both settings simultaneously for the best of both worlds.

Our Overclocking Efforts

Due to time constraints, we tested the Ryzen 9 X and Ryzen 7 X with both automated overclocking features activated instead of with a manual all-core overclock. Several motherboard vendors have told us that overclocking headroom is extremely limited on the Ryzen processors, and that exceeding the boost clocks, or even meeting them, isn't possible for all-core overclocking. Our resident overclocking expert Allen 'Splave' Golibersuch has also spent time with early Ryzen samples and was unable to break the GHz barrier without sub-ambient cooling.

In either case, the combination of PBO and AutoOC yielded improvements in some applications, but wasn't as impressive with the Ryzen 7 X as it was with the Ryzen 9 X. In some cases, the boost confers no benefit for the Ryzen 7 X in our application testing, and on a few occasions, we see performance regressions in lightly-threaded workloads compared to the stock configuration. We tested with multiple motherboards and met with the same result, which could boil down to the quality of our sample or motherboard firmwares. As with most processor launches, motherboard firmwares are still a work in progress, so there is hope that the situation will improve. We'll update our results when a fix becomes available, but we did encounter this issue the night before NDA lift, so hopefully a fix will come soon. 

We regularly observed our Ryzen 9 X maintaining an all-core GHz during our testing, while the Ryzen 7 X often peaked at GHz.


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Paul Alcorn is the Deputy Managing Editor for Tom's Hardware US. He writes news and reviews on CPUs, storage and enterprise hardware.

Sours: https://www.tomshardware.com/reviews/ryzenxx-review,html
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