Fclk frequency for 3600mhz ram. But for 2nd Gen Ryzen, FCLK and MCLK are synchronous.

Fclk frequency for 3600mhz ram Advertised timings are 3600 16-19-19-39-1T, which is where I have it set. DOCP should set it As said in the title, the frequency is the tabs are different. Everything above 3600MHz RAM speed increases latency on ZEN 3 at the moment. (For example for 1900 FCLK, try to boot and test RAM at 3800MT/s 18-22-22-42, 1T with GDM enabled, at 1. 3600mhz is the So the supported memory speed for the ryzen 3600 is 3200mhz If i buy a 3600mhz kit and enable xmp, does it change the infinity fabric clock automatically aswell, or do i have to change it manually to 1800? The board will automatically change the FCLK to 1800. you can always tune secondary timings anyway. FCLK can be higher than RAM speed but lower will make your latency go up and performance decline. Fabric clock target 1700-1900 MHz; Memory latency penalty ~10ns when moving from synchronous to asynchronous memory/fabric clock, which can be reduced by further increasing memory those are micron rev E or rev D. The results will most likely get closer with BIOS updates. 25x (1. For example, if the memory runs at 3200MHz, get the fclk If i buy a 3600mhz kit and enable xmp, does it change the infinity fabric clock automatically aswell, or do i have to change it manually to 1800? If I recall correctly it'll change I have seen people running 3200 MHz RAMs with 1600 MHz FCLK or just left it at auto (which essentially sets itself to half of whatever the effective DDR frequency is or equal to With memory speeds greater than 3600MHz (mclock > 1800MHz), fclock caps at 1800MHz and uclock switches to a 1:2 ratio with mclock. 3600MHz is the clearly I understand the benefit of synchronous memory and FCLK/Infinity Fabric. Anytime you see it listed as MHz, it's technically wrong. FCLK is the CPUs infinity fabric, which, when on auto, runs at half the DDR frequency. So when you raise the RAM speed to 3200MHz, the FCLK runs at 1600MHz, when you raise the RAM to 3600MHz, the FCLK runs at 1800MHz and so on. 75x 3x, Max Freq 13700K 6. In UEFI, the FCLK was set to AUTO. A rank comprises the memory that connects to one 64-bit side of a DIMM. After restarting, I tried to The Ryzen 3000 & 5000 series "Sweet Spot" for RAM Speed is 3600Mhz. Start smaller where you know the FCLK is stable and move up from there. P overclock to actually reach 3000MHz. Nonetheless going over 1900mhz fclk is even harder so it has diminishing B450 Steel Legend and 3600MHz RAM As the title suggests, looking for opinions around best RAM frequency for a 3900x as ive heard mixed things. 88 latency but Frequency and subtimings will has a better imc so you should be running around 4000mhz but youll wanna test max fclk first so find a max stable fclk and thats your ideal ram clock, be it Will my motherboard suppoet this frequency? Skip to main content. 66, FCLK frequency of 1833MHz At CL16-20-20-40. At DDR4-3600 this memory maintains the 1:1 FCLK Frequency with AMD Ryzen systems so the Infinity Fabric is not bottlenecked. 975V for the Soc and 0. I changed nothing else and it's been working great for the last 3 weeks. What is the fastest possible RAM you can run with 1:1 fclk? DDR4-4000. I just purchased 2x8GB sticks at 3600MHz. Distinguished. When pushing FCLK around 1800 MHz, intermittent RAM training errors may be alleviated or eliminated by increasing VDDG CCD. Is any kind of voltage tweak normally necessary for this? TUF GAMING X570-PLUS (WI-FI) running RAM at 3600MHz is unstable (Ryzen Sep 1, 2022 · AMD确认锐龙7000的最佳内存频率是DDR5-6000， FCLK应该保持在AU,AMD的新一代锐龙7000系列处理器将支持DDR5内存，但在发布会上他们是没有提及新的处理器内存支持情况的，然而大家都很关心锐龙7000处理器 Mar 23, 2021 · 先对内存进行超频。在华硕bios界面按F7进入高级模式，在Ai tweaker一栏找到Memory Frequency，这个就是你要设置的内存频率，下面的FCLK Frequency设置成上面的一半，也就是memory 3200MHz，FLCK设置 Dec 20, 2019 · Ryzen's base memory controlller frequency is 2933. when It comes to ram it’s not that complicated. I now have 2x48Gb Corsair 5600Mhz and whenever i try to sync the FLCK, meaning using 2800mhz, the PC doesn't boot anymore. I am using Corsair Ryzen 5 3600. If your running at FCLK != 1600 MHz, with 3200 MT/s memory, then that would be suboptimal. Do not forget to set the fclk to 1800 minimum if you are going to run 3600Mhz memory. The ram being the limiting factor there I believe. Gaming performance obviously isn't great, so I was thinking I could probably get some more performance by increasing the memory With my 5900x and Dark Hero mobo, my 3600mhz ram kit would not run stable by selecting just XMP. You have to adjust the FCLK frequency. ), facilitating data and control transmission across linked components. g 3200mhz ram with 1866 fclk, then 1900 fclk (1900 might not boot), then 1933. If 1900 MHz FCLK is stable for you, it's very much worth OCing your RAM to that point as well. That's if I recall correctly. skill 2x8gb 3600mhz 17-18-18-38 (Samsung B-Die), and I've managed to tighten my clocks a small amount to 15-17-17-34. Reply reply Jayson5584 • • just load the XMP profile in the bios and set the FCLK to half of whatever the ram frequency is, so 1800 for 3600 mhz ram Reply reply Since this will be for a Ryzen 5800X build, it's vital to get a kit of 3600MHz memory as the CPUs internal "Infinity Fabric" FCLK scales linearly with system RAM speed. By default it's set on FCLK 2000mhz. A. under AI Tweaker set memory frequency to ddr4-3600 and set FCLK Frequency to 1800MHz. Put in 64 gig (4x16) of 3600mhz cl17-19-19-39 Once I got W10 pro up and running, after some updates and reboots and just generally seeing things working, went into the Also realize that '3600MHz' and '4000MHz' run at memory clock frequencies of 1800MHz and 2000MHz respectfully. Retailers have just marketed their RAM for how many transfers it can accomplish and DDR can do 2 transfers per clock cycle. DDR4-3200 16-20-40-1. I have 32GB of 3600MHz CL18 Corsair Vengeance DDR4 RAM, which is pretty decent when paired with an Intel Core i9-14900K. 0ghz DryIce Max all time Freq FX-8300 7685mhz LN2: Oct 20, 2024 Presuming they both work correctly, the DDR4-4000 memory will be technically a little bit faster since it will raise the 5600X's FCLK frequency to 2000 Mhz (as opposed to 1800Mhz with the DDR4-3600 memory). Follow what I did and you should be fine, if not it will only be increments of voltages to So if I can run 3800MHz ram and 1900MHz FCLK on a Ryzen 5, 3600MHz ram on a Ryzen 9 should be no problem. And the Apu chips tend to manage higher fclk than non Apu chips (at least from what I've seen reported, in excess of 2000 fclk). 2V to the SoC and over 2200 I get random crashes in Windows. I have a Ryzen 2600x which is On the other hand, some say that a higher frequency - e. Sure, I myself had a 3700X, 5900X and my current 5950X run 3800 MHz. It's not the best RAM or anything out there, but it's good enough Hi all, Hoping I can get some advice from you all on how to best tweak the RAM I have. (no manual changes to ram timings were applied, I just went with XMP and set frequency to 3600 and High Frequency Support to Level 3, and it automagically overclocked it without any issues) My doubt is: will FCLK of 1900mhz or higher benefit this setup? Was thinking which ram speed to get considering that 3800MHZ CL18 will have 9. 3600Mhz/CL16 - would be beneficial for gaming applications, as games benefit from higher frequency. If auto is setting fclk to 1200mhz when ram is set to 3600mhz , manually changing fclk to 1800 should improve I learned that XMP of 3600Mhz is already an overclock and that the FCLK running 1:1 @1800mhz is overclocked to accommodate. I haven't seen a ton of information about these online but here's The Ryzen 3000 & 5000 series "Sweet Spot" for RAM Speed is 3600Mhz. just built my new rig with a 5600x and 3600mhz ram coming from an old 6600k, Thankfully DOCP work fine but I might get to tweaking tomorrow Reply Ryzen runs best when in 1:1 mode. The FCLK frequency has a direct impact on the RAM’s performance and bandwidth. And anyways for daily use, 3600Mhz with tighter timings is likely going to be better for any ryzen processor. For AMD, run Prime95 Large FFTs and OCCT VRAM with max utilization simultaneously to stress the FCLK and ensure FCLK stability. One thing to remember though is that if your 5800X can do much higher FCLK than the ram's max The FCLK frequency is directly related to the memory speed and plays a vital role in determining the overall system performance. And RAM needs to be overclocked to reach its rated setting anyway- for instance a kit of DDR4-3000 would be running at 2133/2400/2666MHz out of the box, and would require an XMP/D. I would also like to add it can reach a system multiplier of 36. And 3600MHz CL16 isn't even that great of a performance bump over 3200MHz CL16, So yes memory compatibility is definitely board related. For 3600 rated RAM, your FCLK (Infinity Fabric) would be set to 1800 . Cheers, Andrew Solution siaan312 I had some spare parts laying around, almost enough for an AM4 system, but no CPU and GPU, so I decided to put everything together and get a 5600G to have some fun with. 4V) Overclocking 3600MHz C18 ram with Intel CPU comments. I have a Ryzen 3600 and some expensive 3800 CL14 G. Skill Trident Z Royal with a rated speed 3600mhz at cl19. The mobo accepts up to 4400MHz so I know that I'm good on that aspect. Planning on building a computer but need some advice? This is the place to ask! With ryzen cpus for optimal performance you want to max out the fclk frequency, which runs in sync with the memory frequency. In upcoming AGESAs, we will be implementing additional tuning that will make reaching 2000MHz easier. Edit3: I ended up having to lower the frequency to 3533mhz. Some chips/boards can run 1900 FCLK but that’s less common. If you're aiming for 3600mhz on your ram, you'll want to make sure its set you 1800 FCLK. Reply reply Problem: >90% of the CPUs can do 3600 RAM with 1800 MHz FCLK, but very few can do 2000 MHz FCLK stable that you needed for 4000 RAM speed. Upvote 0 Downvote. I also have a ryzen 5 1600x for a processor. why go with 3600mhz ram when cpu RAM - 32gb 3200mhz CL16 vs 32gb 3600mhz CL18 FCLK + Memory frequency: Motherboard default (1200 / 2400 MHz) or memory module default (1600 / 3200 MHz)? upvote r/buildapc. For best results you want the FCLK running at a 1:1 ratio with your memory. Fortunately, boards I get that I'm supposed to run 3600Mhz with the 1800 setting for 1:1 FCLK stuff but I was wondering what happens if you put in say 4000Mhz RAM? Obviously the Fabric will be lost since most chips can't even do 1850 When you run RAM at a lower clock frequency than specified, My friend said he's running his MSI B550-A Pro with the Ryzen 5600 and 3600MHz RAM. DDR4-3600 is NOT actually 3600 MHz, it's 1800 MHz (x2). You can try overclocking your RAM but I would focus on overclocking the timings rather than the core clocks. . P profile for FCLK will be automatically adjusted to memory XMP and be able to be manually adjusted to RAM frequency up to point of max Asus b550f cant support 3600mhz ram . Discussion I have a 32gb 3600mhz ram with ryzen 7 5800x, 1000w psu, 3080ti. C. I have had good success doing this and I am able to run RAM up to 4733MHz perfectly fine with no WHEA / bus Question, I have a Ryzen 5 5600x CPU & an ASUS mobo with the latest BIOS. S. If you have a lower MHz ram (starting from 2133 up to 3200MHz) you SHOULD overclock your FCLK in order to lower latency and increase read, write and copy speeds! Did I somehow made that not clear enough? Running fclk at 2:1 incurs a latency penalty which may be overcome if memory can be run fast enough. Hi I've switched from an AM4 PC to an AM5 PC. 4. I have this processor with 3600mhz cl18 and it is great. Importance of FCLK Frequency for RAM. Hi guys, i recently built my pc and my problem is that my cpu AMD ryzen 5 5600g can reach 3200mhz and my RAM is 3600mhz. At least I need to do this on my mobo. So I don't have the best RAM, I guess. 15v, iod to 1. 3800 cl16 kits may not run optimally if your ryzen CPU can't handl 1900mhz on the IF/FCLK. Your RAM will also take a few Watts per stick and the higher the clocks and voltage the higher the power consumption. And running FCLK and RAM clock async causes additional latencies, which can drop performance significantly. 1 ns for me on a Ryzen 3600 with 1900 MHz FCLK. Use very loose timings with 1. Just remember to set the FCLK frequency in the bios to half the frequency that you set your RAM frequency to You will have to run the ram at 3800mhz or 3600mhz depending on your IMC. When you buy RAM marketed as 3600MHz then that's how it works out of the box with no manual overclock needed. So 3600MHz is 3600Mhz Is the sweet Spot, And running 1:1:1 is what you wanna do with Ryzen, So if you get 3600Mhz ram, You can run the Fclk at 1800Mhz, Its really not up to the ram to run the speeds its the motherboard/bios Here is a good video for anyone Messing around in my bios I decided to change my 3600mhz rated RAM frequency to 3666mhz and fclk to 1833, so far it's running fine but would i be better off just enabling xmp instead, 3600MHz ram running at 2666MHz with XMP enabled self. If your RAM has a good die (Samsung or Micron B/E-die), just ramp up the DRAM Check Infinity Fabric (FCLK) frequency, should be set same as RAM base frequency. 35 V). It will reboot after being idle on the desktop for a small amount of time. r/buildapc. Jason H. 3600 to 3800 is basically the sweetspot since for most cpus the fclk doesn't go above that. My kit: F4-3600C16D-32GTZR ( G. I successfully installed it (into the 2. Click to expand Even after selecting the XMP profile to 3200 mhz and FCLK to both auto and 1600 mhz, I am still seeing the ram is running at 1330 mhz . But admittedly most people max out at around 1800 FCLK. I would suggest manually tuning your RAM. For what I read, it should be 1600Mhz, since the advertised clock speed of the memories is 3200Mhz, but somehow they appear to be stabilized with FCLK 1800Mhz. Bummer the RAM couldn't sustain 3600mhz. You have some crazy good RAM and a nice setup. That’s why lots AMD chipset motherboards have really high Max memory frequencies. PC Hi I bought 5800X3D with B550 tomahawk and 2x16gb 3600mhz CL16 Kingston Fury DDR4. In addition, I changed the memory timings to 16-18-18-38 to improve performance. 3600MHZ Cl16, Fclk and uclk at 1800MT/s gets you 99. But the whole DDR thing means your true speed is half of your effective speed. Reply reply adbeem Running FCLK as high as possible with lower memory clocks does boost performance indeed, however you are better at 1:1 ideally at 1:1 you get the best Latency AND the best performance for example i have 3600mhz ddr4 DIMMS, i have overclocked these to 3800Mhz and set the FCLK and MCLK to 1900mhz - about the highest you can expect on If the RAM is at 3200 MT/s then FCLK should be at 1600MHz. In addition, it’s right in the middle on the fastest CAS latency timing for RAM, it’s much faster than CL19 RAM, and not far from CL14 RAM which may not run as stable at this frequency unless the Voltage is bumped way up. I am trying to overclock my ram to its rated speed of 3600mhz, but I can only max it out at 3000mhz without being sent into a boot Yeah you should be able to, probably even able to just leave it at 3600MHz, Although it would be considered overclocking for anything about 3200MHz. Also, pushing the Hi all! So I built my own pc awhile back and I tried to mess with the ram speed in BIOS but with no luck so here I am again trying to get my Trident Z Neo up to the advertised speed of 3600. followed by manually configuring the FCLK frequency to 1867 MHz and the UCLK frequency ratio at 1:1. I cannot get my system stable at this Fclk and mem frequency. I thought it was a bit better than this when I bought it, but it is Hynix C-die CJR. 35V. I have a 5600x in a Asus B550 that runs at 3800mhz 1:1. 1% lows if the working set is overflowing from L3 to DRAM. Highest brute frequency is not always best and you absolutely want to keep 1:1 ratio for best performance. So i had to set my RAM to 3600MHz to get 1:1 ratio FCLK-UCLK. 5x, 2. 3600MHz CL16 is definitely the sweet spot unless you want to spend literally hours and days finding, refining and testing memory settings to egt faster than that. The spd tab also says the max bandwidth(1066MHz) while my ram is running at 1799. This means that if you have a DDR4 RAM clocked at 3600 MHz then your FCLK frequency should be set to 1800 In Zen 2 architecture, FCLK frequency is tied to the memory clock speed. 3600MHz is the sweet spot and any higher will only give like 1-2 FPS more, DDR speeds are 'doubled' so 6000 MT/s RAM (incorrectly sold as 6000 MHZ) FCLK is the Infinity fabric, that seems to need to be within a certain multiplier range of the MCLK - any value dividable by 0. minerstat® is a crypto mining monitoring and management platform for GPU Past 3600MHz, FCLK should be 1:1 with RAM speed. When you find out what your max FCLK is, do you change any voltages or do you just up the FCLK frequency and then apply the ram speed and see how it goes? Yea at the moment I have 3600MHz at CL14 speeds so it's as good as 3600MHz can get. I had to manually add a little voltage and then was fine (1. I've got the same board and it has run for months at 1:1 with a 3700x at 3600mhz. pcmasterrace Would it be less of a headache to just get 3600mhz ram or would purchasing 4000 mhz and tweaking it down to 3600 mhz if its Is it really worth it to spend hours testing FCLK and ram speeds and timings for a literal 1-2 percent performance gain and The best kits are often higher frequency ones because nobody likes to waste a potential I have a Ryzen 5 3600 @ 4. DDR stands for double data rate, meaning the RAM is actually running at half of what it says it is (3600mhz = 1800mhz in reality). 490v stable with a 4090 / 7800x3d / fclk 2167 / bclk 101 / LLC - low / Hi all! So I built my own pc awhile back and I tried to mess with the ram speed in BIOS but with no luck so here I am again trying to get my Trident Z Neo up to the advertised speed of 3600. Now I am thinking to sell this memory kit and just buy a DDR4 3600Mhz C16 kit to run on native speeds, but I am wondering if it is worth the hassle or just keep the current configuration. I have used the Mod utility to find XMP profiles for my kit. A. Latest AMD Build CPU: 3600 | Motherboard: 550 | GPU: 5700 | RAM: 16/3600 | Hard Drive: 1000 | Power Supply: 700 | Case: 205M | Operating System: 10/64 | Monitor: 28/2160 | Keyboard: M100. My memory now runs at 3600mhz and 1:1 1800 FLCK. The ram voltage is still set at its auto 1. So DDR4 3600 = 1800/1800 (Dram/FCLK). So I'm familiar with the basics of overclocking RAM and trying to get a 1-1 ratio on AMD with the fclk. The Infinity Fabric interconnects the core components of the system (CPU, RAM, etc. 2v, DRAM @ 1. I'm trying to get my system to boot at 3600Mhz at XMP settings, but no matter what I try it doesn't seem to boot. 280mm AIO for CPU. I’m guessing your chip should be able to run at that speed since AMD has been on 7nm for a while and refined the Depends on your motherboard's specs concerning RAM speeds and the Motherboard's QVL list for the 5000 series processors if it supports XMP-2 (Overclocking) the RAM to 4000Mhz or higher and if your RAM Part number is listed or not. I read and heard that the two values should be matched 1:1 for the best results but my RAM with XMP applied at 3600mhz can only get the fclk at 1600 instead of 1800. (example video of MSI) If your Problem: >90% of the CPUs can do 3600 RAM with 1800 MHz FCLK, but very few can do 2000 MHz FCLK stable that you needed for 4000 RAM speed. I’m running 6400 cl28-36-36-30-66 1. g. 3600 would run FCLK at 1800MHz, while 3200 runs it at 1600MHz. Can't get 3600mhz cl16 to MCLK is the true memory clock, double it for DDR speeds. However, the 3600 memory is all but guaranteed to work correctly without any tweaking other than just setting XMP. DDR4-3200 is still the officially supported memory frequency on Ryzen 5000. Then set to 2T gdm off and manually tighten Expected ram speed/fclk Most Zen 3 can do infinity fabric/fclk of 1900, effective ram speed 3800. The Zen 4 parts have a default FCLK of 1,733 MHz, supporting DDR5-5200 memory by default. If you can run a 1900 FCLK and pair it with 3800 MHz ram, you’ll be better off than 1800 & No processor frequency OC of any other kind, and I am quite new to this. etc. I kept having the same issues so backed the RAM down, set the voltages back to default DOCP, and haven't had an issue since. Not 4000MHz like Lisa said in presentation. The difference between 3200MT/s and 3000MT/s will depend a lot on the actual timings, as the frequency bump is not particularly huge. SKILL TridentZ RGB Series 32GB (2 x 16GB) 288-Pin DDR4 SDRAM DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C16D-32GTZR - Fclk frequency for 3600mhz ram ryzen 5000 BTW, DDR means double data rate. Open menu Open navigation Go to Reddit Home. "3200MHz / 2 = FCLK". That being said, I would go with 16gb of DDR4 3200mhz CL16. But it still shows me at 3:54 ratio in CPU-Z, even though Ryzen Master confirms these settings as Last week I upgraded my RAM to Kingston Fury Renegade 16GB 3600Mhz CL16, and I turned on XMP profile, everything was working fine but yesterday I changed FCLK It is recommended that you run the FCLK at half the speed of your RAM clock speed for the best performance. I used TestMem 5. 35v. Pushing FCLK above ram frequency is a terrible way to judge if the ram frequency would be stable. Though when I was testing for FCLK, I was running the memory at a lower speed so I wouldn't run into any memory limits, maybe there's less stress on the SoC when the memory is in sync and I can get to higher FCLK? Jul 8, 2019 · Highest achieved memory frequency was 4333 MT/s on X570, 4200 MT/s on X470 and 3666 MT/s on X370. My mobo is GIGABYTE B550m DS3H. To find highest fclk set all timings to auto, go into advanced, amd overclocking: set soc to 1. For the most part DRAM latency and FCLK frequency doesn't matter as much with the X3D, but it still can help in 1% and 0. It appears the problem is the auto value for SoC voltage. RAM - 32gb 3200mhz CL16 vs 32gb 3600mhz CL18 Hi everyone. That's half of your 3133MHz. Thanks! I was following that guide but misinterpreted the fclk sync as "don't oc ram frequency on Ryzen CPUs". I have ONE profile selection under D. 9GHz so I'm wondering if there's any need to go for 3600MHz RAM. Skill TridentZ Neo RAM. This should be run after any frequency/FCLK change. When the FCLK frequency is set to match the RAM frequency, it allows for optimal data I OC'ed my RAM yesterday but noticed my FCLK desychronized at anything past 3600MHz. find your highest fclk first with desynced ram, e. latency will be the same (shown by the calculator that OP linked). 100v, set CLDO_VDDP to 0. As a try, I then manually set the FCLK in UEFI to 1600 Mhz. It's not the best RAM or anything out there, but it's good enough FCLK, or Fabric Clock, is crucial for understanding modern AMD processors' architecture and its impact on system performance. Reply reply Used BIOS to manually set the Adjusted DRAM Frequency (3600MHz), timings (tCL17, tRCDRD18, tRCDWR18, tRP18, tRAS38) and voltage (1. 2x 16GB 3600mhz Ballistix RAM. Unless your board is defective in some way I don't think that it would hold you back from 3600mhz 1:1. Reddit 3200 MHz is actually 3200 MT/sec and runs at 1600 MHz memory frequency which should be your FCLK. What I'm trying to You can choose 3600Mhz OC RAM however there will not be a D. These adjustments can be complex and may involve some trial and error, but the rewards are well worth the effort. 35V) and the problem still occurs by 3600 it means the FCLK should be on 1800MHz which below 1900MHz New build, new questions. 200MHz may not seem like a lot, but that's orders of magnitude higher than Oof, nowhere to be had. Buy a lower frequency ram and overclock it and the infinity fabric of the CPU or B. Hallock believes that DDR5 For people trying to run their ram at their rated speed, try setting your fabric clock (FCLK FREQUENCY in BIOS) to 1600 or less (Stock is 1066). It's also similar for me 3200MHz ram with auto FCLK 1800. 1600 for 3200 rated RAM . 1080ti. The Ballistix 3600MHz 2x16GB RAM kit, with 16-18-18-38 timings, part# BL2K16G36C16U4R, at least appears to be available, albeit not from Crucial. Which reads "D. Your auto settings were correct. r/Amd A chip A close a lot if not most can do 3733 or even 3800 but going over that is very rare. Anything above 2933 is considered overclocking I'm running a R9 3900X with Corsair 3600MHz RAM. every time i try to use xmp profile 1 the PC will restart and does not open for while with series of Restart operations then gives me the message in the Video and i cannot Edit 5 I thought I was going to leave this unsolved but i have ordered new ram sticks and have new information: My new ram sticks are Trident Z neos 16x2 32Gb CL184000MHz My XMP Default profile is DDR4-4000 18-22-22-42-64-1. Current 130% CPU and 120% RAM switching frequency 300 optimized I manually set the SOC voltage to 1V and it seems more stable You want the FCLK frequency to be half the rated speed of your RAM. 2000MHz fclk is to the Ryzen 5000 Series what 1900MHz fclk was to the Ryzen 3000 Series. The ram is rated to run at 3600 so any frequency lower than that (such as the 3200 you are currently running at) will be fine. Top Posts Reddit . Awkwardly, I've done some adjustments at the FCLK Frequency and it seems to stabilized. But I can't get there. FCLK is 1800, BCLK 100, DDR 3600 settings. The FCLK, or Fabric Clock, is the frequency at which the IF, or Infinity Fabric, operates at. Many samples can do it, but not all. So there's a small chance that raising the RAM to 3600MHz actually made the PC not boot due to the FCLK going to Currently, I have 32 gig (2 x 16 gig) DDR4 3200 mhz CL16 ram and a 3700X CPU. My 3700x has no problem running at 3800mhz with 1900 fclk. 00v and vddp to 0. 225GHz and a single RAM module of CMK16GX4M1D3000C16 @ 3600MHz. Reply reply The frequency of the RAM has nothing to do with degradation. 6 MHz (which seems correct for 3200 DDR RAM), but the NB frequency was only 799. Running fclk at 2:1 incurs a latency penalty which may be overcome if memory can be run fast enough. Anything higher will have negligible higher efficiency results. Buy a higher frequency ram and ensure it is running at it's rated speed in the bios. When enabling XMP ram isn't stable, If it doesn't work then lower the mhz even more and FCLK is always 2x less than RAM speed. I went into MSI bios, enabled A-XMP, set DRAM to 3600 and voltage to 1. Try to increase RAM frequency up to your max FCLK. reReddit: Top posts of July 19, 2021. Download ZenTimings and link a screenshot of your RAM timings, and myself or others can look your timings over and give you some things to try. Both FCLK and memory frequency should . 75x 3x, The MCLK is 1599. And B-die will run for years on 1. I noticed when the FCLK was set to auto in the BIOS, the speed This means that if you have a DDR4 RAM clocked at 3600 MHz then your FCLK frequency should be set to 1800 MHz for optimal performance. I am planning to upgrade the CPU to a 5700X3D cpu. "Best RAM" is complicated. Can this mobo support 3600mhz ram comments. Or 3600mhz. Half is Oloy Warhaark (Micron) and half is TridentZ (Hynix) and I've had no issues at 4000 with 2000 MHz FCLK. If you can run a 1900 FCLK and pair it with 3800 MHz ram, you’ll be So I am on a b550m motherboard from MSI and I bought 32gb (2x/16gb) of RAM with 3600mhz from corsair the other day (). The FCLK frequency is typically set at a default value that matches the memory’s speed, And the RAM hasn't even come into play yet, aside from just the relationship between RAM speed and FCLK speed on Ryzen. If it's unstable, try tweaking with voltages and timings. This is why 3rd Gen Ryzen can run at much higher DDR4 frequency. 47 latency and 3600MHZ CL16 will have 8. At 3600MHz I was able to tighten the timings fairly tight. The 3200 MHz was okay, I got CPU speeds of 4. I used to have 3600mhz ram (2x32gb) for which i'd set the FCLK to 1800mhz for a 1:1 ratio. Make sure you also set the FCLK frequency to 1800MHz (half your RAM speed) so that it's a 1:1 ratio. O. You should be able to get some crazy low & tight timings with that. 05v, ccd to 1. 7ghz DryIce Max Freq 14700K 7. And running FCLK and Ryzen runs best when in 1:1 mode. Both the bios and windows show me at 3600mhz. NB is UCLK I have been paying attention to my voltages with each fclk frequency. 40V. P. I’m running Crucial E-Die 4000mhz CL18, it’s the ballistix Max rgb kit. 3400 CL14 looks very nicely tunable. The FCLK frequency will ideally be set to match another value that’s part of the larger system – memory controller frequency Or, in other words, FCLK = MCLK = 1:1 = RAM frequency/2. Test with a program called TM5 using anta777 or 1usmus' config. it'll enter failsafe mode and then I'll need to set them again, highest I've gotten in a 1:1 is 3400. Most zen 2 chips can easily do 3600, it's just technically not guaranteed if it's Hi i have a Asus ROG STRIX B550-F GAMING (WI-FI) MB updated to lastest Bios version and a AMD Ryzen 7 5800X and Memory G. All this lead to situation my PC didn't boot, so I cleared CMOS but still PC wa So I switched it back to 1800 and overclocked my ram to 3600mhz :D Reply reply Set the FCLK manually in Bios. Only the Zen 3 chips however could do that frequency at 14-14-14 timings while my 3700X could only handle 16-16-16 ‘Optimal’ would be whatever the fastest FCLK and RAM speed your chip can achieve while B450 Steel Legend and 3600MHz RAM For anyone who isn’t interested in manually tightening timings and adjusting voltages, a 3600MHz XMP kit like this one or a high-quality 3200MHz kit is the obvious choice. I know i can set them to 3200mzh in bios but i don't know exactly how. Oct 20, 2013 1,766 114 20,540. That my two sticks of ram are indeed running at a total of 2400MHz. great at frequency, decently tight compared to anything that isn't B die, and crucial kits always seem to have slightly better bins than everyone else's rev E/rev D kits. AsRock B550M Pro4 mono. Reply reply ianuJ- From what I understand, the FCLK and frequency of RAM should match to maximize the performance. Desynchronizing FCLK/UCLK/MEMCLK on a Ryzen system can have a negative effect on performance if you don't know what you're doing. Then set ram to match it 1:1 (3800/1900 for example). r/minerstat. L3 cache sits at 10. 4v, FCLK 1900, CAD Bus 20 20 20 20. 95v, ProcODT to 34 on SR (single rank) and 40 on DR (dual rank), try to boot 1900fclk. You can overclock the FCLK on some CPUs up to 2000MHz, but most will only be able to go no further than 1900MHz. If I'm reading this right you need to go into AMD overclocking in your bios and manually change the IF frequency above 1800Mhz. always go for the highest frequency while keeping the cas latency as low as possible. Please advise what I can do. 35). 35V), as well as FCLK Frequency (1800MHz), and UCLK DIV1 MODE Or Userbenchmark is It's not going to damage your system to use a lower frequency. So i actually had tp lower RAM frequency from 3800MHz on ZEN 2 to 3600MHz on ZEN 3. and 4. the tridentZ neo B die kit will tighten up Frequency as high as possible (subject to FCLK 1:1 limitation) and tCL as low as you can go. Does anyone have any idea of how to do that (timings, voltage etc)? I don't know much about pcs i thought fclk freq is They clearly didn't set the FCLK manually, as it drops into 2:1 mode above 3733, and the results graphs directly correlate with the memory latency graph from AMD. The QVL List will also show how many DIMM Slots your RAM Part number My MB is cheap, but it has only 2 dimms (helps a lot with ram oc compared to 4) and is rated for 5100MHz ram on Ryzen 3000, max 4600 on Ryzen 5000 which makes little sense AAs for ram oc I'm limited by bad bin So once more I changed the clock speed to 3600Mhz on Memory and kept FCLK at Auto which is basically 1800. I’d love to be able to run 1900 FCLK to go with the 3800 MHz I have a Crucial Ballistix 3600Mhz Micron E-Die and I just set SOC @ 1. Looking back, Ryzen 3000's FCLK typically hits a wall at 1,800 MHz, which means you can run the Fclk = half memory speed or 3200mhz ram = 1600mhz fclk for example It will run coupled up to 1800mhz (3600mhz ram) after that it automatically decouples and you need to set it manually for higher ram speeds your RAM speed is measured in “mega transfers per second” and the frequency it runs at is half this value because two bits are Infinity fabric at the moment goes to 1800MHz. Gradual steps. I'd like some good RAM recommendations for Ryzen 9 3950x. AMD claims that the 5000x series CPU's support up to 3200MHz RAM. In contrast, Zen 3's sweet spot was at DDR4-3600 (1,800 MHz FCLK), with DDR4-4000 (2,000 MHz Now this CPU has been out a while, what's the current thinking on the optimum RAM frequency for it. But for 2nd Gen Ryzen, FCLK and MCLK are synchronous. At higher frequencies it matters a lot, if not 1:1, memory latency goes higher, lowering RAM score and performance. In BIOS I do not have an xmp profile option. XMP (DOCP if ASUS) doesn't always set the infinity fabric to match your RAM. The advertised speed is the transfer rate in MT/s, not the frequency. 3600Mhz RAM worth over 3200Mhz (with APU) [option A1] After you're done with Step 1, reset BIOS to defaults, restart, enable the XMP profile for 3600 MT/s, set FCLK frequency to 1800 MHz, set SOC voltage to 1. Jan 10, 2020 #8 yellowcardyc said: For RAM frequency lower than 3200MHz it may be beneficial to set higher Infinity fabric than 1600 but you would have to experiment a little. I set it down to 1600 and the result is lower latency. This is not a guarantee. Some motherboards won't set it to this ratio even with auto, for some reason. 1800MHz is the default FCLK on AM4 so the ideal 'clock' RAM is 3600MHz (1800 x 2). And also RGB So if I can run 3800MHz ram and 1900MHz FCLK on a Ryzen 5, 3600MHz ram on a Ryzen 9 should be no problem. If you go to AMDs product page for the 3900x you will see that the memory controller in the processor is rated at 3200MHz meaning it is designed to meet the DDR4-3200 PC4-25600 standard, the Jan 23, 2022 · The FCLK is my issue, I'm already running over 1. If I enable D. Reply reply Best thing to do is set ram to jedec spec (no xmp) to remove ram as a variable and then manually change fclk to highest you can go without WHEAs. Does anybody who has this board have higher speed RAM above 3600mhz and could get that XMP profile to post without issue ? If I confirm I can’t post, that would mean I’d have to just seek RAM with lower timings? G Skill 3600 F4-3600C16 32 GB RAM (xmp profile - no other changes) My understanding is that for Ryzen 3000, FLCK should match the MCLK. The Ryzen 5 5600X supports only up to 3200MHz Frequency speeds. I got that done recently for bumps in memory speed and latency, as well as CPU cache latency. That's way more likely to cause instability than FCLK. 3 5V" In BIOS under MEMORY FREQUENCY this reads "DDR4-3200MHz" FCLK FREQUENCY reads "1600MHz" and yet I'm still only getting 2400MHz Personally I like 3600 cl14 more because you can keep the IF/FCLK frequency at 1800. 5% of the performance with a single click of the XMP profile and chekcing those other settings in BIOS. I recently bought this set to go with my Ryzen 3600, which is rated for 3600Mhz CL16 (16-19-19-39 @ 1. It was still a good price for 32gb of ram, c16 3600mhz from another brand cost nearly double. Skill Trident Z RGB DIMM Kit 32GB, DDR4-3600, CL16 1. Note that you do still have some leeway to change these values even when sticking to the 1/2 RAM rule. Like most other elements of your computer, Hello, Last week I upgraded my RAM to Kingston Fury Renegade 16GB 3600Mhz CL16, and I turned on XMP profile, everything was working fine but yesterday I changed FCLK frequency to 3600MHz instead of 1800MHz by mistake. 86V for ccd/iod @<1600MHz FCLK. Could also try slowly incrementing frequency to train the memory. 8 MHz, which did not make sense to me, because my understanding is that MCLK should be equal to the NB frequency/FCLK. This was after adjusting the power management settings and increasing the DRAM voltages incrementally up to 1. Most/all 3000 series chips can run 1800 FCLK which you’d then pair with 3600 MHz ram. And anything over 1900MHz FCLK is like yeah, good luck, hence why there's no point in going with 4400MHz memory or other high frequencies on Zen 2, because in turn you'll just be losing performance in reality. Ram slot) and after some time I noticed that the clock was just 2666mhz. 6MHz? I am using the msi cpu-z version as I am using the msi x570 pro motherboard and the normal version doesn't work correctly. If auto is setting fclk to 1200mhz when ram is set to 3600mhz , manually Advertised timings are 3600 16-19-19-39-1T, which is where I have it set. 4V. You want to match the FCLK frequency to the actual frequency of your RAM, in this case 1800mhz. The caveat here is that RAM with higher frequency will have more cycles per second, so the overall latency of two kits with the same ratio between frequency and C. I only set the FCLK from 1600Mhz to 1800Mhz. Ummm, i've read the article that you have sent before but even if i set my ram into the default XMP Profile (3600MHz CL18 @1. availability, and ease. It operates at a 1:1 ratio with the memory clock, ensuring optimal performance. Looks like its not even booting with that high of FCLK. After restarting, I tried to You won't fry anything . My RAM kit is the trident z g. 3200mhz vs 3600mhz (or other) best for AMD 3900x? Yes 3600mhz ram will work with both of those CPU's. Also, it is worth noting that FCLK, UCLK, and MEMCLK are synchronized together which means that they will also be synced to 1800 MHz as well. 36 instead of 1. and set the frequency Recently I got new ram for my computer and it is 32gb of G. 0 to test it, and it was ok. So I just tried to set the Typically, it’s recommended to keep the FCLK frequency closely matched to the memory’s speed, which might require adjustments to your memory’s clock, timings, and voltage settings. Note the "marketing number" for DDRx-RAM is just 2x the actual clock speed. ASRock x570 steel legend + 32gb 3600mhz ram issue Lower your memory frequency for 1:1 FCLK:Memory, if needed. 850v. Damn I FCLK + Memory frequency: Motherboard default (1200 / 2400 MHz) or memory module default I can go as low as 0. 5V with sufficient cooling. if the IMC (integrated memory controller) can't handle the memory speeds, you might get BSOD's or odd errors in Windows. FCLK is the Infinity fabric, that seems to need to be within a certain multiplier range of the MCLK - any value dividable by 0. kxwdl sypvm ogzpd wcwj xaoxjz qhtwd rvte afhe gyd oga