Fclk frequency for 3600mhz ram. Running FCLK at 1800 with a 3000MHz ram.

Fclk frequency for 3600mhz ram Ryzen 5000 CPU, however, can usually get up to 1900Mhz. Ahí podréis cambiar el FCLK. I recently found 16gb's of 3600mhz ram for just under £70. But I can't get there. Jun 18, 2020 · AMD switches its onboard Unified Memory Controller frequency (UCLK) to 1/2 of the DRAM data rate whenever DDR4-3600 is exceeded, and further protects controllers on the I/O die from instability by Its the very first time for me that I need to adjust the infinity fabric to handle the memory, at 3200mhz everything its stable and works as expected, but once I increase the frequency to 3600mhz and adjust the FCLK to 1800mhz the system becomes unstable. Used BIOS to manually set the Adjusted DRAM Frequency (3600MHz), timings (tCL17, tRCDRD18, tRCDWR18, tRP18, tRAS38) and voltage (1. This is why people argue you need to get better RAM to run at at least 3800Mhz. Now, let’s discuss the connection between FCLK frequency and 3200MHz RAM. P" which is XMP , i've enabled that and selected the only available profile which is 3600Mhz Cl18 Jan 10, 2020 · The Ryzen 5 3600 has a higher chance of running 3600mhz for sure. This is not 3600Mhz Frequency! We now add another one of those RAM modules and now have 2 RAM Modules; Both RAM Modules still run at 1800MHz, the frequency does not change Your ram die shouldn't affect your fclk stability. If using boost is unstable then choose to have Jun 5, 2023 · In Zen 2 architecture, FCLK frequency is tied to the memory clock speed. (FCLK). 2MH => UCLK Black part, bottom right: FCLK/UCLK: 1900/1066 Frequency and timings: 4266. 5-1. 18, and both vddg at 1. 66MHz etc So, you don't really need to see the multipier on screenshots, it's obvious its 42. (aka not good enough for oc) but you may try luck by increasing to 3800 with fclk 1900 with same xmp volatge. It's also a common misconception to blame the board topology for poor DRAM frequency with 4 DIMM's, as the majority of cases will have the CPU FCLK or a poor IMC limiting max MCLK frequency before the board topology does. 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). 2v. Cause it is the lowest quality binned Ryzen 3rd gen CPU. 3600 mhz it runs at 1800mhz. I turned on XMP and looking at Gigabyte EasyTune there is no option for 3600Mhz, there is only 3466Mhz and the next option skipped straight to 3733Mhz, any solution on what should i do to maximize my Ram frequency? As mentioned getting to 1800MHz FCLK (with 3600MHz RAM) is the sweet spot. Looking back, Ryzen 3000's FCLK typically hits a wall at 1,800 MHz, which means you can run the memory at DDR4-3600 and remain in 1:1:1 mode. Like others said, play with SOC and use Cinebench 20 to check differences. While a corsair 16gb 3200mhz kit was going for £90. 3 5V" In BIOS under MEMORY FREQUENCY this reads "DDR4-3200MHz" FCLK FREQUENCY reads "1600MHz" and yet I'm still only getting 2400MHz 3200 MHz is actually 3200 MT/sec and runs at 1600 MHz memory frequency which should be your FCLK. So memory running DDR@3200 will have FCLK of @1600. So if you have 3600MHz RAM, you wanna set your FCLK at 1800MHZ. In my case, my 6 sticks of 32GB 3600mhz (total of 192GB) all use hynix MJR chips, which are notoriously hard to drive on top of really slack timings. The ram being the limiting factor there I believe. This is not a good setting for performance but is for testing only. Higher frequency can degrade the performance but there are exceptions. If the RAM is at 3200 MT/s then FCLK should be at 1600MHz. L3 cache sits at 10. 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. FCLK in Zen 3 Architecture. But 3200MHz MCLK/1600MHz FCLK are no problem and the CPU will work for many many years. The FCLK, or Fabric Clock, is the frequency at which the IF, or Infinity Fabric, operates at. Double check in CPUZ if you aren't sure. So if you have 3200mhz ram, the fabric runs at 1600mhz. Would the best way be to just turn on XMP and set the FCLK to half of what the RAM frequency is? I just built a new system with a B550-f Rog Strix board, 5 5600x and it works fine with 3600Mhz memory, did you update to the latest BIOS? CSM enabled, under AI Tweaker set memory frequency to ddr4-3600 and set FCLK Frequency to 1800MHz. You won't notice in most of what you do. 66. Running FCLK at 1800 with a 3000MHz ram. I think I have samsung b die, which I heard can run 3600 cl16. 05? Edit3: I ended up having to lower the frequency to 3533mhz. Feb 24, 2021 · Question, I have a Ryzen 5 5600x CPU & an ASUS mobo with the latest BIOS. I've got the same board and it has run for months at 1:1 with a 3700x at 3600mhz. i just use the XMP to boost the RAM to 3600mhz, but when i play a games about 10-30 minutes Oct 28, 2021 · At DDR4-3600 this memory maintains the 1:1 FCLK Frequency with AMD Ryzen systems so the Infinity Fabric is not bottlenecked. 1% lows if the working set is overflowing from L3 to DRAM. 31) Corsair Vengeance RGB Pro 32gb DDR4 3600 Ram C18 Dec 9, 2023 · I've watched that video before, I don't recall him ever saying the best FCLK is 2033. 40V. Higher frequency means more cycles per second, which means better performance. Checked FCLK and it was 1800 so everything run fine although at Cl 18. 200MHz may not seem like a lot, but that's orders of magnitude higher than a few clock cycles of latency. FCLK is the clock of the Infinity Fabric inside your CPU. The higher the RAM frequency, the faster it can transfer data to and from the CPU. I have had good success doing this and I am able to run RAM up to 4733MHz perfectly fine with no WHEA / bus interconnect errors. Anytime you see it listed as MHz, it's technically wrong. However, the 3600 memory is all but guaranteed to work correctly without any tweaking other than just setting XMP. I now have 2x48Gb Corsair 5600Mhz and whenever i try to sync the FLCK, meaning using 2800mhz, the PC doesn't boot anymore. 15v and 1. 75x 3x, etc) This is critical. Jun 9, 2020 · 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. You shouldn't worry as the performance difference isn't significant. frequency : fclk when stepping up is 3667 - 1833 3733 - 1866 3800 - 1900 3933 - 1967 4000 - 2000 with the ratios above in mind remember to keep fclk and memory speed in synch. And some forum posts indicate that having the FCLK at 1800mhz (half of 3600mhz) isn't considered overclocking. Jan 7, 2022 · Couple things: First, I wouldn't get 40000MHz DIMMs, especially with Ryzen. 4v. If you have 3200 MHz you wanna set it at 1600MHz. When pushing FCLK around 1800 MHz, intermittent RAM training errors may be alleviated or eliminated by increasing VDDG CCD. Some chips/boards can run 1900 FCLK but that’s less common. Nov 10, 2020 · Infinity fabric at the moment goes to 1800MHz. The Infinity Fabric interconnects the core components of the system (CPU, RAM, etc. 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. Yes, XMP is enabled and I've manually set the RAM to DDR4-3200 in the UEFI with the timings on auto (I think). Nov 6, 2020 · 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 wanting to learn how ram works, There actually getting 2000Fclk to just about everyone now, Check for You're trying to run 2 ranks per stick - 4 ranks per channel - with samsung 8gbit b-die, which is one of the harder memory IC's to drive at a good frequency. Sep 5, 2021 · If auto is setting fclk to 1200mhz when ram is set to 3600mhz , manually changing fclk to 1800 should improve performance. The only reason to go higher is to run a really high FCLK to offset higher latency when the MCLK:FCLK ratio isn't 1:1. 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. 86V for ccd/iod @<1600MHz FCLK. 45v and 3800mhz and test. AMD claims that the 5000x series CPU's support up to 3200MHz RAM. People suggest 3000/2000/3000 is the dream settings for DDR5 6000, and it is. 4MHz => 4266MT/s Uncore frequency: 1067. Would it be worth it to push it to 4000MHz desynched? Ideally, RAM frequency stays around 3200 MHz while FCLK Frequency stays around 2000 MHz for good performance in general. If that's not the same as the RAM (1799 or 1800), you may want to try 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. Some select few can do 1933 (3866 RAM) or more, but this is VERY rare with actual stability. Ryzen CPUs will default to a value that's dependent on the speed of your RAM. and set the frequency Aug 8, 2023 · Turns out, this RAM only has 3000mhz and 3600mhz profiles. UCLK is still set to auto though. skill Ripjaws V 2x16GB 3600MHz CL16 (2Rx8) · Graphics Card: ASUS GeForce RTX 3060 Ti TUF Gaming · Boot Drive: 500GB WD Black SN750 M. 66, FCLK frequency of 1833MHz At CL16-20-20-40. For 3200 MT/s RAM, the memory controller will usually run at 1600MHz (UCLK = MEMCLK). The faster the RAM, the more CPU performance you get with Ryzen CPUs. E. But beware, it is the most likely to not be stable. Most/all 3000 series chips can run 1800 FCLK which you’d then pair with 3600 MHz ram. g. AMD's website lists max RAM speed for Ryzen 9 5900X at 3200MHz, yet I see most (but not all) people/publications recommending the use of 3600MHz RAM. So I am on a b550m motherboard from MSI and I bought 32gb (2x/16gb) of RAM with 3600mhz from corsair the other day . My DJR can do 3733/16-19-8-20-30 JEDEC spec 3200 is not good though. You may be thinking "Isn't a faster FCLK better?". DDR4-3600 is NOT actually 3600 MHz, it's 1800 MHz (x2). but even if i set my ram into the default XMP Profile (3600MHz CL18 @1. So the thing is, even though AMD markets 3600MHz ram (probably implying 1800MHz FCLK) as the "sweet spot", they also say the max supported RAM is 3200MHz which probably implies 1600MHz FCLK. When I turn on XMP any game I play tends to crash. For 3600 MHz RAM each stick is running at 1800MHz, and so on. And 3600MHz CL16 isn't even that great of a performance bump over 3200MHz CL16, so gambling that 3600mhz Feb 8, 2023 · That RAM Module runs at 1800MHz Frequency (not at 3600mhz!) That RAM Module transfers 3600mt/s (two transfers per clock, 1800 * 2), hence the “3600” in its Product name. Dentro de la parte de «OC Tweaker» encontraréis, en la sección de DRAM, Infinity Fabric Frequency and Dividers. DDR stands for double data rate, meaning the RAM is actually running at half of what it says it is (3600mhz = 1800mhz in reality). My RAM kit is the trident z g. I just purchased 2x8GB sticks at 3600MHz. 3600 would run FCLK at 1800MHz, while 3200 runs it at 1600MHz. I'm pushing RAM and fclk settings because I rely on the I'd set voltage to 1. So for 3200MHz RAM each stick is running at 1600MHz. In BIOS I do not have an xmp profile option. 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. Sep 5, 2019 · The new Ryzen 3000 chips officially support memory speeds up to 3200MHz and can reliably run kits up to 3600MHz, with extreme overclocks up to 5100MHz. So I just tried to set the RAM speed manually in the bios but I just got bluescreens. Everything above 3600MHz RAM speed increases latency on ZEN 3 at the moment. Nov 6, 2023 · If youd like to take the lazy route just buy a generic 3200c16 or 3600c18 kit and be done with it As for ram oc ive heard that the 5800x3d 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 3866, 4000, 4133, etc. On my 5900x, 1800mhz run great, but on my 2400g, I had to take the ram down to 3333mhz because the fabric couldn’t handle it. It was said in his easy AM5 timings video when talking about DDR5 6000 back when there was an AGESA bug that would raise the memory clock 100MT/s if the FCLK was set just right, so at DDR5 6000 FCLK 2033 it would actually be running DDR5 6100, but that's since been patched and it doesn't matter. I got that done recently for bumps in memory speed and latency, as well as CPU cache latency. I flat out can’t get to 1900 FCLK, and the best I’ve been able to hold at 3733 is CL16 with Jun 2, 2020 · Start low like at 3600MHz, then go up slowly. If so, you can start checking if the IF works in 1:1 mode (e. for 3600 MHz RAM (MCLK = 1800 MHz) it runs best when UCLK and FCLK are also 1800 MHz. The FCLK is the speed of the memory controller, the Infinity Fabric and actually the RAM memory, however the RAM memory is read twice per cycle and therefore FLCK of 1600 is DDR@3200 speed. FCLK, or Fabric Clock, is crucial for understanding modern AMD processors' architecture and its impact on system performance. 100v, set CLDO_VDDP to 0. 975V for the Soc and 0. At that point, start tightening timings. So, I overclocked my crucial ballistix 3200 mhz to 3600mhz. Apr 12, 2021 · Unless your board is defective in some way I don't think that it would hold you back from 3600mhz 1:1. I seem pretty stable at a 3600 mem, 1800 Fclk right now. Easy way to do this, set DOCP, the nmanually set FCLK to 1600 which you know works. Aug 11, 2021 · CPU: AMD Ryzen 9 5900X · Cooler: Artic Liquid Freezer II 280 · Motherboard: MSI MEG X570 Unify · RAM: G. 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? Sep 5, 2021 · Running fclk at 2:1 incurs a latency penalty which may be overcome if memory can be run fast enough. It's best when RAM runs at twice of that, 3600Mhz. The advertised speed is the transfer rate in MT/s, not the frequency. A. Play with different ProcODT settings. By default if you run your RAM at speeds up to 3600 MHz the 1:1 memory to IF ratio will be used so your IF will be running at 1600 MHz if your memory is running at 3200 MHz (because the true frequency of DDR RAM is half of the the advertised speed (which should be measured in mega transfers not megahertz but not many people care about that these days Mar 1, 2022 · I know that the DRAM Frequency should be 1600 MHz since it's rated for DDR4-3200. This should be run after any frequency/FCLK change. . Note that you do still have some leeway to change these values even when sticking to the 1/2 RAM rule. Your RAM will also take a few Watts per stick and the higher the clocks and voltage the higher the power consumption. Jul 1, 2021 · Lower your memory frequency for 1:1 FCLK:Memory, if needed. As data is transferred on both the rising clock edge and let's say the new 4000 gen can do 2200 or even 2500 mhz FCLK, almost as high as intel, with the same RAM (run-of-mill ones, 3600mhz or 3200mhz), not every stick can do 4400mhz CL14 besides the CCX/CCD IPC 16% gain which is a sure-deal (the main reason to upgrade) 1: anything over 3200mhz memory is an overclock on ryzen 5000. Reply reply supersuhaib Frequency as high as possible (subject to FCLK 1:1 limitation) and tCL as low as you can go. 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. Jun 24, 2021 · I have a ryzen 7 3700x and 4x8GBS of 3600mhz corsair vengance pro ram. There have been rare exceptions where some really extraordinary Ryzen 3000 samples could run stably with a 1,900 MHz FCLK (DDR4 Apr 30, 2023 · Hi I've switched from an AM4 PC to an AM5 PC. BIOS - Main Settings My 5600x is happy with 3933 RAM and 1966 fclk until I go to a 4x8 dual rank setup which can help fps and 1% lows in gaming. Overclocking Ram and Fclk Frequency . DRAM frequency: 2134. Both FCLK and memory frequency should be matched for the best latency. Whether FCLK is stable has nothing to do with whether ram frequency is. I would suggest manually tuning your RAM. Do not forget to set the fclk to 1800 minimum if you are going to run 3600Mhz memory. May 18, 2010 · Keep all setting at stock. I have read in many reddit posts that users were not able to get a stable system with 1900/2000 FCLK and 3800mhz/4000mhz ram speed. if you ever dont know just take your memory frequency and divide by 2 to get your fclk frequency 3800/2 = 1900 BTW, DDR means double data rate. Enabling XMP doesn't automatically sync FCLK to UCLK once you're above DDR4-3600, you're likely at 1800 MHz FCLK with unsynched UCLK. By suggestion, the ratio of RAM frequency to FCLK frequency should be 1:1. Jul 8, 2019 · Instead with DRAM Frequency fixed at 4333 MT/s, increasing FCLK from 1733 MHZ to 1800 MHz immediately shows a gain of 1. Esoteric note: People often refer to DDR4-3200 as being 3200 MHz however, in reality, the real frequency of the RAM is only 1600 MHz. Example. I can go as low as 0. My question is, is it better to aim for a higher frequency say 4000mhz or just tighten the timings for 3600mhz. Ram speed issues Hey guys, anyone knows a fix? I go in the Bios, set the ram to 3600mhz, the right timing and 1. Personally I think this is the sweet spot because it's generally very achievable without a ton of tuning for FCLK stability and also because it allows you to undervolt SOC sufficiently to free up more power for core clocks to raise higher before hitting the PPT limit. Save and exit. Jul 12, 2021 · Yes it is desirable to get a 1-1 ratio fclk - mclk and AMD recommends users use DDR4-3600 with the FCLK set to 1800 MHz for optimal performance. ¡No lo confundáis nunca con el FCH BCLK que aparece justo arriba! ASRock. Most zen 2 chips can easily do 3600, it's just technically not guaranteed if it's over 3200 s it's an overclock to the imc. Nov 7, 2020 · 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). 4V or 1. I have ONE profile selection under D. (you could leave RAM on full auto settings during FCLK tests) Try to increase RAM frequency up to your max FCLK. O. And you're absolutely right in the end a lower frequency with tighter timings has less latency. 4. That being said, I would go with 16gb of DDR4 3200mhz CL16. Nov 4, 2022 · That my two sticks of ram are indeed running at a total of 2400MHz. sticks in the recommended RAM slots, and Jul 12, 2021 · Stuck RAM in proper holes (A2 and B2), turned on DOCP 3600, frequency 3600 (second XMP on RAM) and it worked. Maybe try vsoc 1. 850v. Feb 16, 2023 · 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. Advertised timings are 3600 16-19-19-39-1T, which is where I have it set. Dec 24, 2022 · It is recommended that you run the FCLK at half the speed of your RAM clock speed for the best performance. When enabling XMP ram isn't stable, OCCT… I OC'ed my RAM yesterday but noticed my FCLK desychronized at anything past 3600MHz. 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. That seemed wrong, so I went into the bios to manually change the FCLK to 1800 and it would not post. So I would still take the plunge on it. 4v at this ram frequency). You want the FCLK frequency to be half the rated speed of your RAM. Thanks all. That means your sweet spot for RAM frequency would be between 3600-4000 MHz. May 18, 2022 · For optimal performance, your FCLK frequency should be half of your RAM clock speed. 4400Mhz kits at 4000Mhz, but with lower latency. It seems that I'm not overclocking the RAM itself because it's rated for 3600mhz. Buy a lower frequency ram and overclock it and the infinity fabric of the CPU or B. I used TestMem 5. started using a latency calculator a few hours ago and I'd get better latency with lower RAM clock speed with tighter timings. Is this because r7 3700x can only support up to 3200mhz? Specs: Ryzen 7 3700x, Aurous x570 elite, Corsair vengance pro 3600mhz (4x8GBS), EVGA Black 2070 Super, Coolermaster 750W 80+ Bronze Oct 30, 2023 · FCLK is the Infinity fabric, that seems to need to be within a certain multiplier range of the MCLK - any value dividable by 0. I have yet to see a really solid, technical, authoritative argument for going with 3600MHz or for limiting oneself to 3200MHz. I successfully installed it (into the 2. in CPU-Z checking North Bridge frequency (should be 1900mhz), or in Ryzen Master Aug 22, 2020 · Digital Foundry investigates whether RAM speed affects fps for gaming on AMD Ryzen, and what's more important: frequency vs timings. I moved from 3700X to 5800X3D and my 16GB 3200Mhz ram worked without issues on XMP. I have HP V10 16GB (2x8GB) 3200MHz S8B. If your RAM has a good die (Samsung or Micron B/E-die), just ramp up the DRAM voltage to like 1. If your running at FCLK != 1600 MHz, with 3200 MT/s memory, then that would be suboptimal. Aug 21, 2020 · The board will automatically change the FCLK to 1800. Like most other elements of your computer, the RAM can often be overclocked as well. 3600 RAM is the sweet spot for performance and ease of getting running with just XMP for 5000 series Ryzen. Could also try slowly incrementing frequency to train the memory. 25x (1. 2 NVMe SSD · Game Drive: 2TB Crucial MX500 SATA SSD · PSU: Corsair White RM850x 850W 80+ Gold · Case: Corsair 4000D Airflow · Monitor: MSI Optix Jun 24, 2020 · The interconnect is basically the fabric clock (fclk) and if that matches up in a 1:1 ratio with the RAM (half the RAM MHz as it is double data rate) then data/communication between the 2 dies will be smooth and will improve performance in almost any task/program (except cinebenchim lookin' at you ya cheeky bugga!). If you’re running 3600MHz RAM, your FCLK should be set at 1800MHz. Then set ram to match it 1:1 (3800/1900 for example). As well, with Ryzen processors, the RMA frequency is related to the frequency of the infinity fabric. 35V) and the problem still Oct 13, 2020 · Awkwardly, I've done some adjustments at the FCLK Frequency and it seems to stabilized. Oddly, even though I kept the timings that the ddr4000 kit gave for 4000mhz, the system keeps setting CAS latency at 20 even though I set it at 19 in the bios. Jul 11, 2023 · The unit used to measure RAM speed is megahertz (MHz). The extra 200mhz on ram and 100mhz on fclk will give little to no performance gain. Or 3600mhz. To summarize : My RAM is Corsair Vengeance RGB PRO SL 3600Mhz and my mobo is Gigabyte B550M K. See attached photo. So naturally my question is: Is anything above 1600Mhz FCLK even supported officially? I enable CPU GAME BOOST (which kinda change the PBO from auto to enabled)then I enabled XMP Profile 1, i then tweak the DRAM Frequency to 3200mhz (to make it run at the advertised speed?), then I change the FCLK to 1600mhz (half of the maximum ram). I'd like some good RAM recommendations for Ryzen 9 3950x. Your auto settings were correct. If auto is setting fclk to 1200mhz when ram is set to 3600mhz , manually changing fclk to 1800 should improve performance. He gave a simple starting point to oc your ram. Some people can manually get to 3800/1900 while other can't even get to 3666/1833. But then I upgraded to a 32GB 3600Mhz and here I had to make a tweak, had to raise DRAM voltage from 1. With AMD Ryzen you want to set the FCLK half of your memory speed, so when using, for example, 3600mhz then set the FCLK to 1800mhz. I've tried running at 1. 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. Very high MCLK frequency can mitigate the latency penalty of running UCLK = MCLK / 2. If I have a game that is notoriously hungry for pure bandwidth, is it still better to run 3600Mhz 1:1 or would I see performance improvements by running 4000Mhz RAM and manually settings the FCLK to a number as if it was using 3600 RAM? Currently, I have 32 gig (2 x 16 gig) DDR4 3200 mhz CL16 ram and a 3700X CPU. Don't use xmp use the loose spd timings. I have 16gb (2 x 8gb) of Gskill Ripjaws 3200 ram running cl14. and 4. Ryzen 3000 CPU can usually run their FCLK at 1800mhz. P. It has nothing to do with how far ram can go, and usually Nov 1, 2014 · DDR4-3200 is still the officially supported memory frequency on Ryzen 5000. After selecting a frequency then save these settings in the BIOS and reboot. "3200MHz / 2 = FCLK". If I enable D. 6V and see how far you can go. You want to match the FCLK frequency to the actual frequency of your RAM, in this case 1800mhz. Not 4000MHz like Lisa said in presentation. Then try to get it to work in 1T gdm off Just want to get the highest possible memory frequency and then work on the timings. [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. I've also tried setting the FCLK frequency to 1600 MHz from Auto, so it's an 1:1 ratio with the Infinity Fabric. I'm using 2x8GB of Corsair Vengeance LPX DDR4 3600, with a Ryzen 5 5600G cpu, on an Asus Prime B550-PLUS motherboard. Used BIOS to manually set the Adjusted DRAM Frequency (3600MHz), timings (tCL16, tRCDRD18, tRCDWR18, tRP18, tRAS36) and voltage (1. 35V), as well as FCLK Frequency (1800MHz), and UCLK DIV1 MODE (UCLK==MEMCLK) Also changed PBO from Auto to Enabled for the CPU, no other BIOS changes Post relevant photos of build/parts here. 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 understand the benefit of synchronous memory and FCLK/Infinity Fabric. ), facilitating data and control transmission across linked components. 3600MHz CL16 is the best value for Ryzen memory, it performs very well and doesn't usually need any tuning to get it to work. If this is stable, then you ram is ok and the problem at 3600 is running your FCLK at 1800. Additionally, the FCLK, UCLK and MEMCLK are all synchronised together, so you should always maintain a 1:1 ratio. 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. 1600 for 3200 rated RAM . Do I set fclk to 1600 mhz or 1800 mhz? In the UK, 3200mhz ram is either priced similarly to 3600mhz or higher frequency ram goes on sale often enough that people just snatch them up. I mean stock CPU/motherboard settings. Nov 6, 2024 · *D-Ram frequency manual - 3600mhz (my memory stock xmp speed) *FCLK frequency - 1800mhz *UCLK DIV1 Mode - 1:1 Disabled Serial (COM) Port 0 (dont use it) Disabled HD audio controler (since i have a sound blaster card) Disabled SVM Mode (I dont use virtual machine so disabling this i get a small gaming performance) All other settings are "auto Jul 5, 2023 · I've got a pretty high overclock on mid-tier RAM: 4200mhz, with mostly same timings as 3600mhz, at same volts (1. Hi I bought 5800X3D with B550 tomahawk and 2x16gb 3600mhz CL16 Kingston Fury DDR4. Which reads "D. There may be negative scaling between 1. Thank you! Ah so yeah AMD 5800x has a 1800mhz FCLK limit, or around that range. 5x, 2. 3V, there I could verify that I can reach 4400MHz and even more. I noticed when the FCLK was set to auto in the BIOS, the speed reported in HWInfo was 1600 and the UCLK was 900. Im facing 2 possible solutions so far. 1800MHz is the default FCLK on AM4 so the ideal 'clock' RAM is 3600MHz (1800 x 2). etc. 1 ns for me on a Ryzen 3600 with 1900 MHz FCLK. Find out max FCLK that your CPU can achive without WHEA errors. Getting conflicting answer when google searching if I should update my ram or not. C. Feb 14, 2021 · En este caso, en el menú denominado OC el FCLK Frequency se encuentra en la parte de configuración de la RAM (DRAM Setting). The mobo accepts up to 4400MHz so I know that I'm good on that aspect. At 3600MHz I was able to tighten the timings fairly tight. Jun 10, 2021 · 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 ryzen 3000 At a given frequency, the lowest latency is achieved by having all three values the same. If not booting try increase voltage a bit. Mar 18, 2022 · Hi just bought a couple of Corsair Vengeance LPX 3600Mhz CL18 Ram Sticks, and installed on A2 & B2 slots of my Asus Prime B450m-A, my cpu is Ryzen 3400G in BIOS, there is an option called "D. And the RAM hasn't even come into play yet, aside from just the relationship between RAM speed and FCLK speed on Ryzen. So I don't have the best RAM, I guess. One thing to determine is whether it is the ram at 3600 or the FCLK at 1800 that is your problem. For the perfect balance between performance and stability, it's usually best to stick closer to 3600 CL16 and an 1800 MHz FCLK. FCLK can be higher than RAM speed but lower will make your latency go up and performance decline. The kind of chips and the capacity of your ram, as well as what timings (Gear down, command rate) you run can have a huge influence on stability. my Specs : CPUs : AMD Ryzen 5 5600g RAM : Team Delta 8x2 3600mhz Mobo : Gigabyte B550M DS3H in short, i play with APU only from Ryzen 5 5600g i don't have VGA. No. 35V and the pc keeps shutting down and resetting into 2400mhz. if its stable push Fclk to 1900 and retest. Buy a higher frequency ram and ensure it is running at it's rated speed in the bios. 6 GB/s. FCLK is 1800, BCLK 100, DDR 3600 settings. tuning ram down to 3200 it booted again but i just couldnt get it to boot at 3600 / 1800 mhz fclk what i tried then, was bumping up soc voltage a bit, which helped, now it could boot 3600mhz (i didnt touch soc voltage on my 5800x at all, dont know if it was higher by default) getting whea errors in hwinfo on that settings though On the other hand, some say that a higher frequency - e. Use very loose timings with 1. What is vsoc, vddp, and vddg set to in your bios, they seem kinda wierd to me. Ryzen runs best when in 1:1 mode. XMP (DOCP if ASUS) doesn't always set the infinity fabric to match your RAM. Does the FCLK being higher than 1500 (3000/2) cause any problems? RAM and FCLK settings vs performance on Ryzen 3000 Going for high frequency is a waste of time Bought 3600MHz Trident-Z last generation, it OC's to 3733MHz Dec 24, 2022 · 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. This was after adjusting the power management settings and increasing the DRAM voltages incrementally up to 1. Soc voltage can help with fclk, shouldn't exceed 1. I've seen reddit posts about some 3600's not able to run 3600mhz RAM. Past 3600MHz, FCLK should be 1:1 with RAM speed. I have this processor with 3600mhz cl18 and it is great. For AMD, run Prime95 Large FFTs and OCCT VRAM with max utilization simultaneously to stress the FCLK and ensure FCLK stability. 35V), as well as FCLK Frequency (1800MHz), and UCLK DIV1 MODE (UCLK==MEMCLK) So I switched it back to 1800 and overclocked my ram to 3600mhz :D Reply reply It's also similar for me 3200MHz ram with auto FCLK 1800. I set it down to 1600 and 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, or better yet taking the frequency and fclk as high as possible as opposed to enabling xmp? Also realize that '3600MHz' and '4000MHz' run at memory clock frequencies of 1800MHz and 2000MHz respectfully. Bummer the RAM couldn't sustain 3600mhz. Aug 19, 2021 · FCLK ideally runs at half the memory speed and in sync, as a general rule. Your chip should do 1800 fclk fairly easily. If you take your DRAM frequency over 1800 (DDR3600) you need to manually set the FClock to match it. That's if I recall correctly. I know i can set them to 3200mzh in bios but i don't know exactly how. 35v to 1. Apr 21, 2021 · BCLK Frequency [100. Zen 3 architecture introduces a decoupling feature similar to Intel’s approach. 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. Make sure you keep FCLK 1:1 with MEMCLK- If you do this, you should top out at DDR4-3800 with 1900 FCLK (if you're lucky), but will probably end up with DDR4-3733 FCLK 1866. at spd speeds set ram at 1. I would also like to add it can reach a system multiplier of 36. On a 3000 series Ryzen, you might not be able to achieve 1800 on your FCLK without some kind of errors in Windows. Try 3666, 3733, and finally, 3800. Oct 13, 2021 · so, i just build my first computer. There is no such thing as "base FCLK". Do the 5600 have weak infinity fabrics or was it just the luck of the draw on the silicon lottery. The Connection between FCLK Frequency and RAM Speed. So i had to set my RAM to 3600MHz to get 1:1 ratio FCLK-UCLK. For most Zen3 non-APU chips that is 1900 (3800 RAM). 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 not stable at 3800/4000 be a better route? Feb 18, 2020 · Pushing FCLK above ram frequency is a terrible way to judge if the ram frequency would be stable. Sep 25, 2020 · First of all - Try to set the XMP (DOCP) profile for RAM in the bios, but set the FCLK (an option in the extreme tweaker in the bios tab) manually to 1900mhz and see if it boots without problems. AMD only officially supports 3200mhz maximum, anything over that is a gamble, but in the majority of cases, it'll be fine and 3600mhz with a reliable memory brand such as micron's Crucial series models, are essentially plug and play, set xmp and forget about it. On Auto if you set DDR3602 the FClock will go to 901. Again, Ryzen really likes 3600MHz with very tight timings, and getting a higher frequency than 3600MHz to run is an achievement. Keep in mind, this is considered a BANDAID fix. 3400 CL14 looks very nicely tunable. I only set the FCLK from 1600Mhz to 1800Mhz. I have no idea why you would stay lower for Intel. Oct 3, 2020 · 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. So i actually had tp lower RAM frequency from 3800MHz on ZEN 2 to 3600MHz on ZEN 3. Or, in other words, FCLK = MCLK = 1:1 = RAM frequency/2. Others still go for much higher frequency sticks and tune them down while tightening up the timing; i. Intel can run stupid high XMP profiles like 4400+ or even 6000 on DDR5. But as you might know/not know 3600 cl18 is a pretty bad bin. If you can run a 1900 FCLK and pair it with 3800 MHz ram, you’ll be better off than 1800 & 3600 MHz. For 3600 rated RAM, your FCLK (Infinity Fabric) would be set to 1800 . GPU: RTX 3080 Strix OC | RAM: 32GB RAM frequency is measured in megahertz (MHz) or million cycles per second. 3600Mhz/CL16 - would be beneficial for gaming applications, as games benefit from higher frequency. (Not related to the 5800X3D, more related to my motherboard. Then set to 2T gdm off and manually tighten timings. But test the ram at 3800mhz with fclk at stock. Thanks! 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. Gradual steps. I use a ryzen 7 1700x cpu and an asrock Ab350m hdv motherboard. People who struggle with performance stability at DDR4-4000 are trying to run FCLK at 2000 MHz in sync with memory. The fastest FCLK you can achieve without WHEA or memory errors with 1:1 is the sweet spot. (For example for 1900 FCLK, try to boot and test RAM at 3800MT/s 18-22-22-42, 1T with GDM enabled, at 1. 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. Test with a program called TM5 using anta777 or 1usmus' config. Ram slot) and after some time I noticed that the clock was just 2666mhz. For example, if the memory runs at 3200MHz, get the fclk frequency for 3600mhz ram. It operates at a 1:1 ratio with the memory clock, ensuring optimal performance. Hi All, I am running the following: Ryzen 3700x ASRock X570 Steel Legend Mobo (BIOS 3. Is my ram okay or should I update it to a 32 gig 3600 mhz CL 16 ram? I play 1440p resolution, and buying in the US. I could not continue increasing the speed of my ram, since the FCLK becomes unstable, I should increase the SOC Voltage to 1. 4V. e. 0000] Performance Enhancer [Auto] Memory Frequency [DDR4-3600MHz] FCLK Frequency [1800MHz] Core Performance Boost [Auto] CPU Core Ratio [Auto] Core VID [Auto] CCX0 Ratio [Auto] CCX1 Ratio [Auto] CCX0 Ratio [Auto] CCX1 Ratio [Auto] CCX0 Ratio [Auto] CCX1 Ratio [Auto] CCX0 Ratio [Auto] CCX1 Ratio [Auto] EPU Power Saving Mode If you really enjoy oc ram, start looking at buildzoid video. (XMP said it should be 17). Jan 25, 2022 · The "rate" is the frequency that the RAM runs at, so take all those numbers and double them for the DDR values. But it should go to 1800 on the FCLK and should easily handle 3600. FCLK is the CPUs infinity fabric, which, when on auto, runs at half the DDR frequency. Oct 31, 2022 · 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. 0 to test it, and it was ok. 2000 MHz FCLK and 4000 MHz RAM is as high as you should ever go with Zen3. I heard some motherboards on "Auto" set 1. 2v (silicon lottery dependent) Jan 9, 2021 · Currently, I'm running a ASRock Taichi, 5950x and TridentZ 32GB (4x8) CAS-19 3600Mhz How do I maximize the performance in relation to my CPU and RAM? From what I understand, the FCLK and frequency of RAM should match to maximize the performance. However, I will add, most 3600's can use 3600MHz RAM. 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 . I thought it was a bit better than this when I bought it, but it is Hynix C-die CJR. 4V) 11 votes, 20 comments. 42V, then keep raising the frequency until it doesn't boot anymore. I am planning to upgrade the CPU to a 5700X3D cpu. 4 volts. I'm using safe timings from Ryzen ram calculator and entered them in manually in the bios. I'm trying to run 3600 cl16. I have a 5600x in a Asus B550 that runs at 3800mhz 1:1. If 1900 MHz FCLK is stable for you, it's very much worth OCing your RAM to that point as well. That brings the achievable frequency quite far down. FCLK to 2067MHz 1:1. PSU: XPG Pylon 550W 80+ Bronze. According to PC Gamer, AMD made their chips to support up to a FCLK of 1800-2000 MHz, but it seems to be largely YMMV because of build quality and silicon lottery. Generally how high FCLK can go depends on how good your CPU's memory controller is, which is mostly silicon lottery. Lower voltages will always increase electronics lifespan. Decent 3200 RAM, and anything faster than that, is generally JEDEC 2133-2666 with an XMP profile. Check my comment for more pls. Ram XPG Gammix D30 2x8GB (3600MHz) OC to 4133MHz CL18 - 21 - 21 -21. I used to have 3600mhz ram (2x32gb) for which i'd set the FCLK to 1800mhz for a 1:1 ratio. 35v). bhao hnjips oijj ggsc aidjfi wzx gwusz chc yuaar ovx