AMD Ryzen - PBO, overclocking and undervolting 25 MAR 2020 • 7 mins read Previously in what’s becoming a Ryzen (3rd gen) min-maxing series, we learned about memory limitations.This time around I’d like to introduce you to three different things that you can do with the clock and voltage. • You must be very careful with adjustment of these values, due to potential inaccuracies in how . Higher voltages may help with higher density RAM at higher speeds but in most cases you will need 1.1 V or less. A word of warning, the UEFI BIOS of the MSI MEG X570 GODLIKE warned that PCI-Express 4.0 signaling would be dropped and negotiated to PCIe Gen 3.0 speeds if the SoC voltage went past its default 1.1v value. i like to know what are the stock voltage for VDDCR CPU Voltage and SOCK Voltage.? One review i saw had no performance degradation at -0.075V and a few % loss at -0.1V. It's higher than soc and it usually has a lot more power phases on the motherboard. the voltage of 1.1V is more than you need for 3.8GHz (good chips do that with 950mV)2. you waste performance due to lack of boost (BOOST = STOCK)3. why not simply do a negative offset and leave boost enable - this will lower the voltage that is applied at max boost - and still help leaving the CPU cool btw - leaving vSoC at "auto" isnt a good idea either: just try around with it; RAM OC (XMP) has to be stable; try vSoC of 950mv-1.05V // this will lower the temp of the CPU under load. New comments cannot be posted and votes cannot be cast. Ik this is old af but anyway vcore or core voltage is the voltage for the cores themselves. I have a -.1 voltage offset):https://imgur.com/a/z6VmgIq. Press J to jump to the feed. Which one should we be changing when manually overclocking? deuxième essai 4.4ghz 1.32v 4650 sur premier ccd. For safe stock operations this is recommended. I didn't notice much of a difference but I didn't run a ton of benchmarks. thanks for responding. Limit: up to 1.1 V. CLDO VDDP voltage - voltage for the DDR4 PHY on the SoC. Drastically is a pretty harsh word. This website uses cookies. i googled the stock voltage of Ryzen 9 3900x and found 1.08 v should be the stock voltage but i wanted to verify this in AMD forums. If these are set then the values are just changed and you can continue It's higher than soc and it usually has a lot more power phases on the motherboard. mon 3900x , 4.3ghz 1.28vcore 4650 sur premier ccd . This should be plenty of voltage for any RAM. AMD Ryzen 3900X - Ventirad fournit avec le CPU AORUS Master Gigabyte RTX 2060 6G NVME Corsaire 1TB avec un petit radiateur Force MP600 SSD Corsaire 2TB Boitier ANTEC NX210 Memoire DDR4 32GB J'habite à La Réunion il fait chaud….. J'aimerais connaitre pourquoi ça chauffe autan et avoir des conseils pour refroidir Merci à vous, bon confinement Publicité. Single core tests were slightly affected and all core tests suffered pretty badly. The AMD Ryzen 9 3900X was shown to suffer only a nominal performance hit while drawing significantly less power when undervolted to 1.00V. The soc or uncore voltage handles non core functions of the cpu like memory controller. Going for 1600MHz with a 1.2V SOC and 1.2V GFX allowed the frequency to hold, using auto LLC. the stock voltage of an Ryzen 3900X is a complex topic: single-core it is up to 1.48V multicore range from 1.27V-1.38V - the higher the load the less voltage max 24/7 Voltage is 1.325V (safe) or 1.35V (when using allcore OC) // both need good LLC SoC (System-on-Chip) Voltage: SoC voltage is the voltage supplied to supplementary components like the, known as “System-on-Chip.” Most motherboards will automatically adjust SoC Voltage to accommodate overclocks on DRAM. Here are my current settings in Ryzen Master (voltage is wrong. No undervolt (LLC Auto, no voltage offsets) Blender Package Power, peak: 145.550W SoC current, peak: 11.765a Core current, peak: 60.612a Tctl, peak: 60.8C Completion time: 1 minute 55 seconds As you can see, in this instance, the reported temps don't change at all. When manually overclocking your CPU, you only care about the Vcore as far as I know. I am unable to reach boost clock. Hello, I recently acquired a 3900x CPU and I am experiencing several cases that I do not know if they would be normal. This is doubly important, we think, when it comes to a brand new platform like AMD's Ryzen. Cookies help us deliver our Services. I'm on a X570 C8Hero. Boost is OC - but Boost IS STOCK SETTINGS 5. if you really want to be on the safe side: set a fixed clock of 4GHz and undervolt your CPU - this would be most efficent and effective. Offsetting voltage by .1 hurts performance drastically. All the load-line calibration settings and increasing the SoC voltage didn’t help either. Pour le SOC, on reste dans la tolérance des 1,1-1,2V, mais clairement on voit la nécessité d'augmenter le voltage de manière de plus en plus importante au fur et à mesure du besoin en fréquence. It also provides power for igpu's. Berikut setting yang kami jalankan di BIOS: Konfigurasi 1: DDR4-3200 CL14-14-14-34. c) VDDCR SOC should be set to 1.05 6) Make sure "DRAM Timing Configuration" is expanded Now I have found that unless these values are set then every time you change something (like the voltage or the clockspeed) the system will want to reboot. 11-08-2020 02:40 AM #8. I thought it was my gpu overclock causing it, but it wound up being the NB SoC voltage not playing nicely with my d-die 3600 CL14 overclock. I am personally able to run at -0.1V with no noticeable loss of performance in gaming or benchmarks... And I will continue to do so until I get a BIOS update that is more reasonable. It maxes at 4.1 and never goes higher. So, procedure would be as follows: Boot normally. /r/AMD is community run and does not represent AMD in any capacity unless specified. Start HWInfo to check current SOC voltage under the headings I mentioned above. WhoSaidThat. Set DRAM Frequency ke DDR4-3200 (MEMCLK 1600Mhz) Set Timing Manual 14 … *EDIT* CPU SOC voltage is much lower than 3900x, its running at ~0.9-1.0volts, 3900x was 1.08~1.1volts, SOC voltage is default lower on 5900x? The first is the high idle voltage, while idling the voltages do not drop below 1.38v, ranging from 1.44v to 1.38v, although I have to say that this is caused by the iCue software. What’s the difference between SOC CPU voltage and normal Vcore voltage in bios? Same as core voltage above it is very CPU dependent. I've used the Fast Preset but had to bump the memory up to 1.48 volts and the SoC to 1.15 volts. I'm hoping for a newer Asus BIOS that doesn't try to fry my CPU soon. Press question mark to learn the rest of the keyboard shortcuts, R9 3900X | 2080Ti FTW3 Ultra | AW3418DW and 2x S2716DGs, R7 1700X - EVGA GTX 1070 SC - X370-Pro - Gskill TridentZ RGB. - SOC Voltage: 1.2V - Dram Voltage: 1.35V - Dram Frequency: 3600Mhz - Timings : 16 18 18 18 38 Ça a fonctionné une soirée. All Ryzen 9 3900X CPUs tested by Silicon Lottery were able to hit 4GHz across all-cores (via Techquila). Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Run a baseline benchmark in your favorite program, like Cinebench R15, etc. The soc or uncore voltage handles non core functions of the cpu like memory controller. 1. this is a terrible idea2. i dont like to overclock and i like to set my cpu voltage according to AMD recommended stock voltage settings. It was all driven by normal SOC voltage. My 3900x was getting fairly low benchmark scores at stock settings, ~6700-6800 in Cinebench R20. my cpu was overclocking  to 4.2 Ghz with default settings. SOC Voltage: In some BIOS such as MSI this is listed as NB voltage. The SoC needs more voltage when overclocking the RAM. Went back to the normal mode and changed the NB SoC voltage back to what it was. BTW, I just tested by setting the voltage to auto on my Asus Crosshair VIII Hero and it actual hurt my scores. i built new system with Ryzen 9 3900x and Asus rog x570 -e Motherboard. simply use a dynamic voltage (lower it a little) - then your CPU wont AUTO-OC that much (ps this OC is STOCK - so its not a manual oc)3. dont set a fixed 1.325V or higher - this will heat your CPU without any reason4. SOC voltage - system on a chip voltage; responsible for the voltage related to the memory controller. Overclocking through Windows is convenient, but we still prefer locking in new settings through the BIOS. I managed to overclock my 3900X to 4.3GHz across all cores – a big improvement from the 3.9GHz I achieved out of the box, but still a little short of AMDs claimed 4.6GHz. here is what i have already done to bios settings. That's with the CPU voltage set to auto. For example mine has 12 for vcore on 2 for soc aka 12+2 phases. Ik this is old af but anyway vcore or core voltage is the voltage for the cores themselves. Last edited by ffletchs; 11-07-2020 at 09:13 AM. My recommendation is to set the SoC voltage setting in BIOS to "fixed" and a voltage of 1.05V or 1.1V (I personally run 1.05V with no issue, 1800 IF clock, and great performance). and there is no decrease in performance. It also provides power for igpu's Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Threadripper, EPYC, Navi, the next-gen consoles, news, rumours, show-off your build and more. Limit: up to 1.45–1.50 V. VDDP voltage - voltage for the transistor that sets memory contents. Thanks for the knowledge! is there any other settings i need to be worried about ? This value can be manually adjusted . By clicking OK, you consent to the use of cookies. Does anyone know what the safe SoC voltage is for the Ryzen 3000 CPUs? This is with a 280mm AIO water cooler. Mostly needed for higher RAM speed stability. I was still in ECO mode with the lower NB SoC voltage and it caused my system to reboot. Hopefully someone that is more knowledgeable can elaborate. I read a guide somewhere and set all cores to 4.5ghz and set a static voltage of 1.3v until someone told me I'd possibly degrade my chip by doing that (had it … ... il y a CPU Power qui indique 85W et il y a SOC Power qui indique 25W. @msheikh22 hey,the stock voltage of an Ryzen 3900X is a complex topic:single-core it is up to 1.48Vmulticore range from 1.27V-1.38V - the higher the load the less voltagemax 24/7 Voltage is 1.325V (safe) or 1.35V (when using allcore OC) // both need good LLCwith adequate cooling and good MoBo you could go 1.45V (but this will cause degration - yet CPU will still last 5-8 years)now listen:clocking your CPU to 3.8GHz and 1.1V is plain stupid for several reasons1. My issue was that my motherboard with the latest BIOS showed (in CPU-Z) the voltage at or above 1.48v at all times unless I have the offset. Ryzen 9 3900X vddcr cpu and vddcr soc voltage, Re: Ryzen 9 3900X vddcr cpu and vddcr soc voltage. Spoiler alert: The Ryzen 5 3600XT actually is a decent chip for overclocking. Hey all, I trying to overclock my RAM and have used the DRAM Calculator for Ryzen 1.5.1. By using our Services or clicking I agree, you agree to our use of cookies. In theory you could tinker further using this method; reducing the voltage further may allow for cooler running, and you may have more luck in increasing frequency, it really comes down to the “silicon lottery”! - CPU SOC Voltage – Manual Mode – VDDSOC 1.1000V - DRAM Voltage – 1.3500V - 1.8V PLL Voltage – 1.8000V - 1.05V SB Voltage – 1.0500V In my case some of these voltages were all set very high at stock, not sure why Asus does so. VDDG adalah voltage yang diturunkan dari NB/SOC Voltage, sehingga Nilai VDDG tidak bisa di atas NB/SOC Voltage ... (Dijalankan pada Ryzen 9 3900X, Motherboard MSI MEG X570 GODLIKE, dan G.Skill TridentZ Royal DDR4-3600 CL16 2x8GB). and the idle temps are from 37 to 40 C and when my son plays the games like overwatch, divison, rainbow, csgo, rocket leage, APEX the temps always stays under 50C. For example mine has 12 for vcore on 2 for soc aka 12+2 phases. In fact it could well be the best chip for overclocking from the whole Zen 2 lineup. I wouldn’t recommend over 1.2 V for this rail at ambient. Limit: up to 1.2 V. DRAM boot voltage - voltage at which memory training takes place at system start-up. i left the soc auto. SOC is 1.2v max without removing hard limits. Need 1.1 V or less RAM at higher speeds but in most you. Hoping for a newer Asus BIOS that does n't try to fry my CPU.. Well be the best chip for overclocking 1.28vcore 4650 sur premier ccd the memory up to 1.45–1.50 V. VDDP -! For 1600MHz with a 1.2V soc and it actual hurt my scores premier ccd like memory controller boot. 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Higher speeds but in most cases you will need 1.1 V or less as as... Posted and votes can not be cast best chip for overclocking from the Zen... Drawing significantly less power when undervolted to 1.00V: in some BIOS such as this!