3700x 1900 Fclk, Optimize your memory & Infinity Fabric for peak performance. habe schon alles durchsucht finde I just bought a x570 board ( Asus ROG Strix x570-E Gaming) and the max fclk of my 3700x is 1833. It will boot at 1866 but no higher. I'm interested in getting a Ryzen 5000 CPU when availability gets good. I forget the numbers for Ryzen 3000, something like 99% do fclk 1800+, 90% do 1833+, 35% do 1866+, 7% do 1900+. They all use same Infinity fabric chip It's rare that a CPU of this bin (yes, 3700x is low bin) could achieve a 1900fclk. 3900x is without this problem. 18 funky tech gift ideas for Father's Day 2026 — get something a little different for dad this year! [SOLVED] Ryzen 3700X stuck at 1700mhz FCLK ? Page 3 - Seeking answers? Join the Set your FCLK to a higher value. 在这里我要告诉你有一个概念,FCLK，也就是IF总线频率，具体内容你可以去查询if总线相关的文章，你只要知道if总线频率等于内存频率的一半。 在zen2，fclk默频为1600，在往上都是超 Most people with a decent set of memory (preferably Samsung b-die) are able to hit 3600 mhz cl14 with an 1800 fclk which seems to be the sweet spot. Adjusting New Ryzens up to a 8core memory write speed is half of 2x00. Hello. ) if it doesn't do that automatically. 2. I have an msi 5900X Help: Trying to hit 1900 FCLK/3800 MCLK/1:1:1 Hello everyone, Pretty new to RAM-focused overclocking in general, but giving it a whirl on my new system since I think I've just about squeezed The only way to go above 1800 FCLK is to set it manually. Not sure about the 3800X or XT stats but maybe you just side graded to a lower binned fclk chip. MSI B550 Tomahawk with the latest BIOS (from today) which other people seem to be hitting 1900 on. Latency went from 72. FCLK 1900mhz 3700X check out that latency! : r/Amd ) Adjust SoC, VDDG, and the Southbridge voltages to help stabilize it. The tests were completed at 1733 MHz FCLK, anything higher would cause stability issues. The penalties of decoupling are probably more of a What's the best infinity fabric clock for 3000Mhz ram? I have the 3700X. T. 3v for FCLK好比处理器与内存之间的高速公路，内存频率就像公路上车速，当FCLK跑1900频率时，内存频率应跑3800（实际内存频率1900），即1：1是性能最大化。 为什么3800的内存频率实际 Struggling with FCLK 1900 on dual-rank RAM kits - Disappointed with Gigabyte Aorus I've been seeing lots of reports of Aorus B550 and X570 boards users with Ryzen 5000 processors (me included) with With the FCLK set to 1900 MHz, the latency creeps up by about 4 ns but at the same time, the memory write speed in AIDA also bumps up to 30400 MB/s from 25599 MB/s. If you are lucky with both your memory kit and cpu C8HW BIOS 3003 5800x 4x8GB 4000 CL18 RAM (CWM32GX4M4Z4000C18) I cannot get past a F7 qcode at 1900 fclk. I refuse to play with CPU /uncore voltages, so I have to stick to 1800 FCLK/ Bonus2: Keep in mind the high voltage bug of FCLK on some BIOS versions. It's the second time that his happens across Unlock your Ryzen 3700X! Fix the common FCLK stuck at 1700MHz issue with our detailed guide. I've tried all SoC voltages from 1. 200, and it always boots, but PC Cpu AMD ryzen 3700x läuft mit aktuellem setup auf nen asus b550-f Gaming auf 4650mhz allcore denke nicht das das der cpu hier der Fehler ist. Other With the 3950X, Silicon Lottery found only 12% were able to hit a stable 1900 FCLK. Doesn't work for me. 5800x3d is a beast gaming cpu. So i tested it:) Test system: 3700x oc to 4250Mhz 2x16GB ram dual rank kingston predator Even 3700X should be fine if it from 10th week of 2020 so 2010SUS or 2010SUT (texas has better waffles) batch. Can run a few tests here talking about the voltages and frequencies on this gold sample 3600 and maybe someone can use this to try to get their own CPU to 1900 infinity fabric Hi, I tried run my ram at 3800mhz with FCLK 1900 as recommended (fsb 1:1) on ryzen 3600. My Cinebench multi score is between 5000 and 5050 (google backup and sync and displaycal profile loader running in the My 3700x boosts to 4. New comments cannot be posted and votes cannot be cast. B. 45V This thread is archived New comments cannot be posted and votes cannot be cast comments Best 3700x here for what it's worth. 080 or so) . It’s a pair of Viper 3700X的fclk最高只能1900吗 发表回复 NGA玩家社区 » PC软硬件 » As you can see in the picture HWINFO sometimes reads out wrong frequencies. ATM I also upgraded from a 3900X to a 5900X and FCLK is set to 1900 1:1 (anything higher throws WHEA) and RAM is running CL15 with 55ns. Is there something I can do to improve the stability? I've seen video guides stating that It is harder to get FCLK past 1600Mhz on R5 3600, and if one pretend to overclock Infinity Fabric, then 3700X or 3600X would be the best pick. That's what I mean by binning. Currently I'm looking into memory for the new chips. 25 single core However, when I try to 1900 FCLK and 3800mhz timings same with 3600, I have some stability problems. Skill TridentZ Neo RAM. /r/AMD is community run and does not 3700x unstable at fclk=1800 Are other people seeing this? Each bios update has made the system less stable unless the fclk is at 1600. When the FCLK is decoupled from the MCLK you suffer around 9ns of latency penalty which cannot be overcome under normal conditions except However, the actual "Best" possible configuration will always be the highest FCLK matched with the highest memory frequency possible in a 1:1 Ratio. which given the huge gains in gaming Unlock your Ryzen 3700X! Fix the common FCLK stuck at 1700MHz issue with our detailed guide. I can get 1900 stable but 1933 I can't even post. 4GHz again (stock). 01v. Should I try higher voltages? Is there any other setting I should try and change? Also, I can get to 1866/3733 with no problems at 1. This bug persists until I restart my pc and appears to be random. 3 released bringing several improvements and bug fixes for various games github M337ING • tomshardware ayon973 • dracolnyte • Ryzen 3700X | RX 6800 XT Midnight Black | G. Where you top out is a matter of the silicon lottery. Ryzen 5900X - FCLK 1900 with G. (Red BIOS 35 votes, 122 comments. If you can get it to run at 1866 with RAM at 3733 or sth, you'd get what. Curious as to why this matters if 3866mhz is stable? Then set the FCLK setting to match the 1/2 RAM frequency (for 3200 RAM FCLK should be set at 1600, for 3600 RAM the FCLK should be 1800, etc. I suspect it's related to Hi all, I've been trying to achieve 1900 MHz fclock for 20+ hours. I've used the safe settings from Interesting, I have the same cpu and ram, but I'm able to hit fclk 1900 at 3800mhz cl16. How much does SOC voltage help with stability in this department? Would I be expected to go to like 1. 1900 fclk is pretty uncommon on any chip, even a 3900/3950. Tried overclocking the RAM and my single rank Kingston kit can handle 3800Mhz like a champ with very tight timings but my CPU doesn't even POST when i set the infinity fabric beyond Its very simple, it depends, on your mobo imc (integrated memory controller), how good Is your cpu that, silicon lottery thing, I guess very bad to not be able to run, past 1600, which I think Is pretty standard Over 1900 FCLK? Jump to Latest 2. 1 soc (1. If your fclk is stable at 1900, I would recommend you get 3800c14 or 3800c16. Before I had to have it 3600mhz cause of my 3700x cpu. So, is it On 5/24/2022 at 2:13 PM, RONOTHAN## said: Ryzen 5000 series CPUs overall tend to have issues running FCLK above 1900MHz. Hey All, I was curious if anyone has been able to get FCLK stable on the new 3950X @ 1900 or I just didn't get as good of a Dropping the FCLK to 1900 sees lower scores in AIDA64 memory, but about 10% higher score in Cinebench. 4 volts (yes too high I know), fclk 1900, 35-40 degree idle, 75 degrees with 240mm asetech AIO during R20 all core, max 80 watts PPT PBO: 4. 0. I've swapped some parts in my system to future proof it as best I can till I'm ready to move to AM5. Some motherboards break the CPU boost with FCLK 1800+ Bonus3: FCLK overclock depends on the silicon quality of your The odds are that your 3700x won't be able to run with 1900 FCKL. I have a Ryzen 3600 and some expensive 3800 CL14 G. It posts and boots to windows with DRAM 1. Correct me if I'm wrong, but motherboards I think are very important for ram overclocking capabilities. But now ur more likely to get higher Im running 1900 fclk for a year but for some sort of reason when i repasted my cpu and added watecoolimg to my gpu,It become unstable at 1900 and sometimes post or not. Currently running Can only post at 1900 fclk by turning LN2 mode 1 and 2 ON, under AMD overclocking and CBS entries, I think? Mine does 1933 without wheas at less than 1. ago Any advice on reaching 1900 FCLK on Ryzen 3600? Hi everyone. 1 SOC Any way for my R5 3600 to achieve 1900 FCLK? I have FCLK 1866 stable on my 3600, but I'd like to see if I can get 1900 stable. Get static in the audio and low performance, almost like SMT gets turned off. It boots lower, higher, up to 2000 (I didnt try any higher). Wish you good luck though. Pulling my hair with this one - Any suggestions for stable >1900 FCLK on 5800X3D? Title say sit all. Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. AMD said FCLK of 1900-2000 is the sweetspot for Ryzen 3, but I can't post at anything over Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. Adjusting The tests were completed at 1733 MHz FCLK, anything higher would cause stability issues. And most of everything 3600 and over is not stable long term. 3800MHz CL15 1:1 1900 (FCLK) stable on 3600X/X570 Aorus Master at 1. Still for As far as I know these are the main factor to get higher fclk speed. Start at 1866mhz or just jump to 1900mhz, Leaving your memory at 3800 MT/s (1900mhz) on your stable settings, but bump your stable DRAM voltage by 0. 45V comments Best Add a Comment [deleted] • 4 yr. Manual OC: 4. I saw that many "overclockers" on YT setting the ram on 3800mhz 1900 fclk, I was able to run on 4000 and on few test like CB 23, memory test, speed, latancy was better the on 3800mhz latensy the Why do you assume that your 3600 can do 1933 fclk stable? My 3700X will puke errors at 1900 fclk no matter what i do with timings and voltages, but 1866 works fine. Just because your memory is on QVL it I've been playing around with the memory clocks on my 5900X and seen to have hit a bit of a wall. For AMD, run Prime95 Large FFTs and OCCT I've seen someone can post and boot into windows at 1933 with higher voltages, but they can't get 1900 or 1933 stable at all. All in all a higher CPU does not mean the IF and or IMC will be better IMO. 100-1. 1v, My main question is, in my case, what should I set the infinity fabric clock to? 1700MHz FCLK, because keeping UCLK = FCLK seems to improve performance compared to having FCLK a My 3700x boosts to 4. Has anything changed about the Infinity Fabric since Ryzen 3000? What I just wanted know how my 3700x scale with memory speed in cpu bottleneck scenes. I eventually tried the AutoOC function on my Asus board, which miraculously got me there. 6K views 5 replies 5 participants last post by pmc25 Sep 16, 2019 S Can your Ryzen 7 3700X hit 1900MHz FCLK? Explore the silicon lottery, stability tips, and performance impact. My Cinebench multi score is between 5000 and 5050 (google backup and sync and displaycal profile loader running in the I have had Ryzen from Zen 1 (1600), then 3700x and now 5600x. My ram is the Corsair Vengeance RGB 16GB, XMP lets gets me to 3000Mhz but haven't had any luck going above that. 45v, SOC 1. Hey All, I was curious if anyone has been able to get FCLK stable on the new 3950X @ 1900 or I just didn't get as good of a 35 votes, 122 comments. same ram, same motherboards though. Lower bins often won't do more than 1800. Guessing TR4 we might be able to push to 2000 consistently . 5MHz on FCLK to give me 1900MHz . However, I noticed that it set my all core clock 1、zen2，zen3平台超内存，首先要拉高fclk频率，这个fclk如果上不去，哪怕你内存再顶级都不好使。 2、zen2平台1900的fclk已经很罕见，zen3上能看见很多2000+的fclk，但是fclk拉高到这个程度容易 3900x 4x8GB Micron E-die 3800mhz tightened timings @ 1900 FCLK, X470 Archived post. Up to 1900 MHz FCLK is possible on some chips, which will depend on the chip quality. 4 all core overclock@1. 2% better performance. but I don't I'm thinking of running an Asus X570-PLUS TUF with either a 3700x or 3800x. So, i currently have it set to fclk 1900/3800 and am running settings i know my ram can handle. What's the best infinity fabric clock for 3000Mhz ram? I have the 3700X. - I changed the FCLK to 1900, memory frequency to 3800, and changed tCL, tRCDWR, tRCDRD, tRP and tRAS to 16-16-16-16-32 (and left all the other settings at AUTO, idk if I should Has anyone noticed black screen flickering at 1900 FCLK? I tried, and turned it back down. Also tried Memory If I cant get my fclk to 1900 to make that 1:1 what values should I be going for as my next best alternative. Private First Class R. I havent been able to stablize my RAM at fclk 2000/4000 and fclk 2033/4066. My setup: 3700x, MSI B450 mortar max, 16Gx2, 280mm AIO， PBO enabled When I set the dram:fclk to 3733:1866, it can run Aida64 FPU stress test at core freq 4000~4100Mhz with no If the CPU does not have the dreaded FCLK 1900 hole depending on what motherboard and memory kit you buy you can easily go over 2000 FCLK with almost any ZEN 3 CPU with two My 3700x is also unstable at 1867 FCLK. When pushing FCLK around 1800 MHz, intermittent RAM training errors may be alleviated or eliminated by increasing VDDG CCD. I have a 3800x that can boot 1900, but is totally unstable If I set dram:fclk to 3800:1900, it can only run aida64 FPU stress test at a steady 3900Mhz and temperature is 10 degrees cooler, if I change BIOS settings to make it run stress test Not many chips will do more than 1900. Provided that is accurate, is the actual way of I was finally was able to stabilize 1900 fclk on my zen2 CPU after months of random whea 19s. Memory latency is generally worse then 2x00. DXVK 2. Is that them or me being dumb? As far as I know, it is rare to recieve a 3900x that can sustain infinity fabric clocks over 1900 MHz. Can your Ryzen 7 3700X hit 1900MHz FCLK? Explore the silicon lottery, stability tips, and performance impact. You can find me as one of contributors in DRAM Calculator from 1usmus, so I have some knowledge in RAM overclocking. 6 to over 77. R. The only chip I've seen have some issues even at 3600/1800 is the R5 3600. Essentially DDR4 3800 MT/s I just realized that I hadn't bothered to set my MSI X570 Unify FCLK after my previous bios update, and had just assumed that manually setting RAM to 3800 would cause the FCLK to run at 1900. I recently got mine and was able to run my ram at 4000mhz now with it being synced at 2000. While my previous x470 board (MSI X470 Gaming pro carbon) did 1900mhz. I can only post up to 1867 FCLK and I'm not even sure it's stable. Skillz 16GB I couldn’t do more the FCLK 1600 on my 3600 but I returned it and got myself a 3700X instead and have been running FLCK at 1900 and MEMCLK at 3800 with a latency of 66-67 tops. Last time it did this was on 1. /r/AMD is community run and does not As far as I am aware the fclk should sync with your RAM, the only reason why it would decouple is if you stretched your ram past the 3600mhz/1900 fclk. Hey guys just wanted to know how reliably does the 3700x hit 1900mhz on the FCLK? and if it doesn't, does the 3900x hit 1900mhz more reliably? thanks. If you are able to get better numbers at Likely the typical 1900 FCLK hole some Ryzen CPU IMC's experience. The CPU 3700X超频最佳设置分享。折腾了整整一个周末，终于把我的AMD Ryzen 3700X超频调教到理想状态了！🎉 作为一款2019年发布的7nm工艺处理器，3700X的超频潜力真的让我惊喜。经过反 The R7 3700X is shy by ~3. From 2015 they started selecting CCXes to 3600XT, 3800XT and 3900XT. 2v TURBO LLC, VDDP 1. Does anybody know how I can stabilize my FCLK at 2000 MHz so that I don't see this So I tried 3533 on e-die at 14-17-14-14-30 with 1900 FCLK. I’d love to be able to run 1900 FCLK to go with the Hi guys, just want to share how I was able to get my FCLK to 1900 mhz 100% stable on a Crosshair VIII impact ( with G. In my case FCLK 2000 gave so many WHEA errors that performance was terrible, way lower than FCLK 1900. I just run Deus EX: Mankind divided bench for gaming performance gains. Skill Tridentz Neo 32GB 3800mhz CL14 & super tightened timings - AIDA64 & Zen Timings Archived post. I tested each individual timing change and recorded performance increase/regression to find my most optimal 3800MHz CL15 1:1 1900 (FCLK) stable on 3600X/X570 Aorus Master at 1. I can get FCLK 1900 semi-stable. Will boot to desktop and can run stress tests & benchmarks for hours but tends to crash few times a day in games. . Nous avons donc repris notre Ryzen 7 3700X et avons fixé Hey. SKILL 4000 mhz CL19 32GB ( 2x16 ) My system is 100% stable at In certain games like Warzone and Overwatch, faster memory makes a big difference in FPS. I noticed i get lower score in cinebench20 when using FCLK 1900 vs FCLK auto (which is 3800/1900 on both my 3900X and 3700X system. Some people can't even pull off 1900 on a 3950x.
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