I wish Buildzoid would make a small PSA about power down mode. Memory context restore MUST be disabled if you disable power down mode, or you will bluescreen. You will bluescreen so bad that's if you manage to get into windows, wonder why, and think it's these memory timings. No, it's power down mode. Go ahead and disable power down mode, but ALSO DISABLE MEMORY CONTEXT RESTORE. MCR on auto, or enabled along with power down mode disabled will cause massive issues. You sacrifice slightly faster boot times, in exchange for ditching power down mode which slightly harms memory latency performance. Please like this post get it to the top, save folks a lot of headache.

Ran these settings for 14ish months, can confirm they were rock solid. Only checking back in because I had to swap my mobo for unrelated reasons!

Hi Buildzoid, love the thorough testing of how to get our Hynix RAM in order. Thanks so much, normally never comment but frankly you more than deserve the like + comment engagement for the algorithm.

I'm sure many people need this content right now! Well done.

I really appreciate the videos where you show timings that should be valid for a particular memory module/manufacturer. I used your videos applicable for 3200 CL14 b-die for ryzen to OC to decent timings 3800MHz cl16 and it worked fantastic.

Thanks so much for this! I am new to AMD and resources like yours have been instrumental in helping me make the most of the hardware!

Summary (so you and I don't have to skip through the video anymore :D): SoC Voltage: 1.25V CPU_VDDIO: 1.35V MEM_VDD: 1.35V MEM_VDDQ: 1.35V FCLK: 2033MHz tCL/tRCD/tRP: whatever your kit says in its EXPO/XMP profile tRAS: 28 tRC: 68 tWR: 48 Refresh Interval (also called tREFI): 50000 tRFC1/tRFC: 500 tRFC2: 400 tRFCsb: 300 tRTP: 12 tRRDL: 8 tRRDS: 4 tFAW: 20 tWTRL: 16 tWTRS: 6 tRDRDSCL: 4 tRDRDSC: 1 tWRWRSCL: 4 tWRWRSC: 1 tWRRD: 2 tRDWR: 16 Power Down Enable: Disabled (also disable "Memory Context Restore" in order to not get BSOD, maybe it will get fixed someday) UCLK DIV1 Mode: UCLK=MEMCLK

Thank you Buildzoid, I appreciate your content very much! Your hours of time and effort is more than we're worthy of.

These timings worked really well for my budget hynix based sticks. Saw a signifigant improvement in Aida memory benchmark, and so far stable even with my DRAM voltages set at 1.25v which is what my kit is rated for at xmp (my ram doesn't have expo support) , Thanks a bunch!

This worked for me. The hardware unboxed video testing these timings vs expo/xmp led me here. Thanks for making it easy to follow!

Good stuff Buildzoid! Been looking forward to this!

Was having issues with the EXPO profiles. So far so good with these timings. Thanks!

For the longest time I tried to enable EXPO on this same motherboard without luck. Crashes, bios updates, BSOD, etc. I got a different ram kit (which happens to be the same one you got). I used THE EXACT SAME settings you have and no issues since then! I really appreciate it! I have another build but that one has Samsung die which would be amazing if you could “build” expo settings for it since it is the exact same issue I had but on that build. Again, thanks!

Thank you very much for this. This solved my CL30 6000 hynix woes. The expo profile was simply not working on my MSI B650I Edge Wifi and this guide fixed it in one go. So far very stable running memtest. What a lifesaver!

Thanks mate, appreciate your work, I learn something new and also useful from each video!

Thank you for taking the time to do this Video. I have used your guide and it has worked perfect. Great Video. Cheers

Be carefull setting Power Down DISABLE on certain motherboards. Here on B650 Tomahawk with M-Die ram kit if you set PD off and CMR on it will lead in bsods and boot corruption, so POWERDOWN need to be ON if Context Memory Restore is ON. If you corrupt boot with bsod at startup do this: tap F1, then Prompt Command and type exactly this: BOOTREC /FIXMBR, press enter, then type: BOOTSECT /NT60 SYS, press enter, then type: BOOTREC /FIXBOOT, press enter, type EXIT, enter and reboot. Now boot is fixed and windows will start. Thanks me later :) This should be put in description

Great videos, thank you so much for this easy to follow instructions and making DDR5 tuning easy. Geekbench will immediately show the benefits of low latency in their results. It worked perfectly in my 7900X system using Corsair (Hynix) DDR5. Great performance and stability!! 💪💪💪 (OCCT doesn’t seem to like it though… weird program)

Great video, thanks for doing all this research and testing for us. It's extraordinarily helpful

The content is incredible. Thank you for the video, that is exactly what I was looking for

I've been waiting so long for this. I have that exact mobo and F5-6000J3238F16GX2-TZ5N ram kit. Running all your settings but primaries are a hair tighter.

Thanks A LOT for this video, im just about to buy a new system and was looking for something along these lines for a while!

Buildzoid, you are thé man. Thank you mate for all of your content i love so much.

Thanks Buildzoid, I followed these settings for my ADATA 64GB XPG Lancer RGB 6000MHz DDR5 on a Gigabyte B650 Aorus Elite X motherboard with a 7800X3D. My system seems stable with VSOC of 1.2V (was too scared to bump it up higher due to exploding CPUs) and VDD of 1.35 (as per EXPO profile). One thing I found different is that for my Tras, the lowest value I could set was 76. I had no option to set it to 28.

Pretty straightforward, even easier since we pretty much can use same settings as shown. About a 9% faster ram for me and my latency went from 85ns to 70ns. Thank you!

Amazing improvements with these settings! I'm running memory tests now.

This video probably saved me and and my house from catching fire, I'm glad I instantly applied these settings first thing first back when I bought my 7800x3d, it was before all the reports even came out. Thank you.

Appreciate the video. The reason why 2033FCLK is faster is because the memory is implicitly run at 6098-6100MHz. The Agesa BIOS versions appear to do this. If we set the FCLK to 1 step higher than the MCLK/1.5, then it'll advance the MCLK to match. This also occurs at 6200MHz with a 2100FCLK, which will result in a 3150 MCLK. We can see this effect if we use ZenTimings. This gives precisely a 2:3 ratio between the FCLK and the MCLK. Yes, while that's not an even ratio, it does mean though that for every 3Hz on the MCLK, that the FCLK is directly in sync at that precise moment leading to improved behavior. A better ratio would be to have FCLK be half of MCLK, but since the MCLK speed is generally limited to 3200MHz at most, the reduction in FCLK speed harms more than it helps. Maybe Zen 5 will be about to hit 4000MHz MCLK, and if so, that'll be the next "sweet spot".

I was able to replicate the exact sub timings on my 13900K system with a G.Skill 5600 CL30 kit (that I tuned to CL28) and it passed all my tests. Reduced the memory latency in AIDA from 67ns to ~61ns. All without touching any voltages. Neat.

Absolutely thankful for this video and for your efforts.

Thank you, thank you, thank you!! This is the second time using these timings whenever Expo is not running stable. With these settings, and using the EXPO timing, with G.Skill 64GB (2x32) 6000 CL32 on a Tuf B650 plus-wifi, I am having no more crashing, or boot errors. Last time I had to use these eventually BIOS updates came out and I was able to use the Expo settings with no adjustments, but until then, yours run flawless as is.. and they are fast!

Thank you! Working perfectly @ 6000 on my 4x16 Dominator kit! Might try to push it a little higher just to see what happens, but super happy that my board can do at least 6000 on 4 sticks at all.

As always i appreciate your content and im happy to see you seem fine after the break :). The reason why 6000 2033 works better is because the A+D agesa has a bug where on some frequencies combinations the actual frequency increases eg: 6000+2033 = 6100 (3050 uclk) 6200+2100= 3150 uclk, 6200+2133= 3200 uclk, 6400+2167 = 3250 uclk. right now I'm able to run 6200+2100 ( which due to the bug with 6200+2100 runs at 6300) with 1.4v on memory and 1.25v on soc, testing to see if I can go lower, 6400 booted but kinda unstable not sure it's vsoc or primaries or rtts tho

Thanks a lot! EXPO was giving me random crashes so really needed a fix and this seems to have worked.

This is precisely what I have needed. Thank you, I even have the same motherboard.

I'm still on ddr4 but enjoy these videos

I was waiting for such a video! I have a B650E-E and 2x32 Hynix at 6200. If I set tRAS below ~40, I get artifacts on the iGPU.

Thanks for doing this, it's much appreciated.

Exactly what I needed! Thank you!

I think finity fabric is a much more fitting name. I'm so happy to see a new mem oc video. Please do one on intel 13th gen next time.

Disabling Power Down with Memory Context Restore on or auto causes BSODs

Just dropped in to say this works exactly as you describe it in the video. After stress testing and several hours of gaming, I have yet to have a lockup. Thank you!

Worked great, zero fuss! Thank you!

Very interesting, with your settings I'm getting about the same bandwidth as I was able to get with 6200 and 2066 fclk but slightly lower latency with less voltage. Good ram diet.

My dumbass bought XMP ram on my AMD build, and this guide got me through hours of issues with ram timings. 10 years since my last build. Got it running at 6200! Thank you.

Helped a lot thx! My Dominator 6000 didn't run on my X670e creator with standard DOCP 2 and much higher timings, than in your tut!! Now timings are much tighter and it runs smoothly

I couldn't run Windows without errors using Expo and these timings sorted me out! Thanks a ton! I was planning on returning my RAM prior to this. 24GBx2 6400 kit running at 6000 for the record F5-6400J3239F24GX2-TZ5NR

Thank you for this guide!! I have the same motherboard and 2x16GB DDR5-6000 CL30 Hynix M-Die sitting around just waiting for the 7800X3D to release, - will try to replicate your timings!!

Can't wait to see how fast DDR5 gets by the time I'm ready to move to AM5

Excellent video. Thank you so much.

Happy days. Love these.

With my 7700x, Asrock b650e Pg Riptide and Hynix A-die (2x16) I've spent several hours to optimize timings one by one and I came up with the same values. In my setup the FCLK is stable at 2100 and Trdrw can easily go down at 14. Unfortunately at the moment Asrock bios doesn't allow to modify Trefi.

I was so scared to mess with ram settings, after watching a few od your vids i decided to give it a shot. Explained perfectly, i have been runing cl 30 36 36 28 (everything else copied like in this vid) at 6000mhz with no issues, 1.35v for a few days now. I have a Kingston Renegade kit 6000mhz cl32. (KF560C32RSK2-32). Thank you so much, im so proud i finaly did it 😅. 66.4 NS Latency on AIDA64 Test. And my cpu score increased almost by a 1000 points on Timespy. And games like CS2 and Warzone run so much better, a lot better 1% lows and stutter wise a lot smoother. Max ram temp is 48c when gaming.

Thanks for this Buildzoid. I ended up here mainly because three different memory kits wouldn't hit their rated speeds. I had issues with the Samsung kit I had hitting anything over 4800, let alone the EXPO profile. No matter which BIOS I've tried no kit I've had will do anything over 5800, which makes me feel like it's probably my luck in the silicon lottery on my 7950X. Regardless, this helped me tighten the timings if nothing else. EXPO results in unstable memory for me.

Brilliant, worked flawlessly, thanks much, amazing how much "slop" there is in stock timings.

on my A-die Kit, I can get 4-4 TRRD's working and 8RTP. The main thing is you have to raise the SOC voltage ever so slightly and it will start working. I had to set mine to 1.22 to get it stable. If i tried 1.2 I could only get 4-8 stable, Ran Y-cruncher/superpi/linpack/occt for many hours just to verify that 4-4 was stable. Figured I would share since I had the same issue with My TRRDL/RTP not cooperating.

Received my 7950X3D and the Kingston DDR5-4800 ECC 40-39-39-77 modules. Used your secondary timings, put primaries to 32-40-40-28 at DDR5-6000, voltages at 1.2V for VDDSOC (instead of 1.25V) and 1.3V for VDDIO/VDD/VDDQ (instead of 1.35V), and things seem fancy according to memtest86. Thanks for the help.

I've learned so much from watching you're videos!

YES! thank you so much! Going to make a coffee and dig in.

text version: www.patreon.com/posts/low-effort-rank-77403831

Buildzoid!!! Your guide saved my 7800X3D from burning out. So happens I was using the same SK Hynix Intel RAM as this guide. And setting the Mem controller voltage to 1.35 prevents the burnouts from happening

My PC with EXPO on was freezing after some minutes on windows and restarting without a blue screen, I set these timings and for a good few hours it still didn't happen again. I have a ryzen 5 7600 with teamgroup 2x16gb 6000 cl30. Thank you very much for sharing this information and allowing many people to solve their problem!

This timings worked like a charm in my kit, thanks you so much for your effort and ramblings haha BTW i have the 2x16 Teamgroup Vulcan Alpha 6000 38-38-38-78 1.25v but at 1.35 it runs great at 30-36-36 + your timings

In light of the memory voltages being the rumored problem child for X3D CPUs dying, do you still feel good about the 1.25V here? And what of the other voltages? I think that's lower than what it's rumored to go if you leave it on EXPO.

FYI, disabling Power Down Mode made my system incredibly unstable - would blue screen on/just after boot over half the time, and even freeze in bios frequently. Took a while to narrow it down, but that seems to be it

Thank you very much! You are the best!

Thanks, really appreciated, works OK on G.Skill Z5.

This will be useful soon! What do you think of this board?

Have any of these recommended settings changed with the new AGESA? Curious to know how it has affected them and would love to see a new update video on it.

I'm glad i check out this video even if i don't have a ryzen 7000. One of my friend asked me why his pc was failing the memory initialization every day. Well, thanks for giving me the right answer without asking!

cool i cant even get into my bios anymore after following these settings and now i have to figure out more, thanks

Just used these timings on a pair of Team Group Delta RGB 16GBx2 and all is well. OS is snappier and cranked out more fps in my games on a 7700X

Very nice timings and easy to run. I've tried to lower the voltages and I am able to run them at 1.1v for SOC Voltage, chances are that the MC voltage can be lowered as well.

Excellent video

Thanks for the video. I applied exactly same setting for my pc, working flawlessly so far. My setup is like this : 7800x3d, Asus ROG STRIX X670E-E BIOS 1416, Kingston DDR5 32GB(2x16GB) 6000MHz CL40

Does anyone know what primary timings I should use for a downclocked 6400mhz kit? F5-6400J3239G16GX2-TZ5RS (32-39-39-102) Currently, I have it set to 6000mhz 30-38-38 which is equivalent to other G.Skill kits running at 6000mhz.

Set this with slightly lower voltages and it still runs flawlessly after bunch of tests

The best video. Thank you sir.

Much appreciated information.✌️

Any change for revisiting these? Asus X670E Plus and BIOS 1616 these no longer work :( No issues on older BIOS versions, on 1414 worked even with 1.25SOC.

After hearing that it is very difficult to deal with ddr5, I did not expect that it would be so easy. Thanks for that. can you share 7950x settings for Asus motherboard for the safe and better multi-core performance?

Thanks! This worked great on my 7800x3d and G.Skill memory! I bought the 6400 2x32 kit but only clocked it to 6000 and didn't have to change a single setting from your recommendations (obviously except for my primary timings) Thanks for the help! Super stable overclock!

Thank you very much for this information. It all works great with my 2x48GB 6000MHzC32 kit :-)

Thank you ! Your settings also work with 4x16GB of G.skill F5-6000J3038F16GX2 Awesome improvement over EXPO profile 👍

Do you have any videos on memory tuning dual (quad) rank ddr5? I'm using 32gb dimms for the capacity but want to try dropping some of the settings, how close to these can I tighten them (cl30 g skill Trident neo, presumably hynix m-die)

Dropped my latency from 72ns to 61ns. Well done, Buildzoid!

finally you do this video, thank you

Can confim that i can replicate this exact settings using ADATA Lancer AX5U6000C3032G-DCLARWH (32x2Kit, 6000Mhz, Hynix A Die), everything is working great as well, i don't even need to change DRAM Voltage. Thanks a bunch Buildzoid!

On Gigabyte x670 boards the minimum tRAS is 30. Is this ok to use instead of 28 or would 56 be better as a multiple of 28? Thank you Buildzoid

Hey BZ ... this is great, can't wait to try it out. I've always been kinda timid about tweaking all these settings, but after following your vids for a while (even though most of it flies way over my head..😅) I feel more confident (having the exact sticks your working with doesn't hurt either...lol). much thanks for sharing your knowledge and experience with those of us in MEM TWEAK 101 (well...me at least on this one). 🖖🏻☮👌🏻 DT

Copied these exact settings for a cheap Team Group 5600 CL32 kit and it works perfectly. I was even able to get it to run at 6000 without changing any of the primary timings.

Thank you for your time and effort! I would love to see timing setups for Samsung memory. EXPO is not really working for me with Corsair's CMK32GX5M2D6000Z36 Kit, on my ROG CROSSHAIR X670E HERO mb.

Thank you so much for this! I used your settings on my G.SKILL Trident Z5 Neo DDR5 6000 64gb kit and went from read rate of 70,238 MB/s to 84,750 MB/s; and latency of 69.1ns to 59.4ns. One question I have is on my Asus x670e Hero MB, the CPU VDDIO/MC voltage, when I set to 1.35000 V, it changes the value to something like ~1.35663V. Does this matter?

I have 2x16GB Corsair Dominator Platinum, CL30 version. Hynix. on Aida64 memory benchmark I got following results: Expo: Read: 77914MB/s | Write: 76244MB/s | Copy: 68462MB/s | Latency: 69.5ns Buildzoid profile: Read: 88496MB/s | Write: 92345MB/s | Copy: 79040MB/s | Latency: 61.8ns So definitely a huge improvement, thanks a lot for this video!

Just wanted to add my voice to the list of people who this video really helped out. I just built a new system with a 7800X3D and a 4090, and I bought a 6600mhz Corsair kit to pair with it. Well, as soon as I enabled EXPO, got tons of instability and crashes (this is my first AMD CPU, I figured EXPO was just like XMP where you just set and forget and things Just Work. Fool.) Was feeling like I was doomed to stay at stock speeds until I found this video. Did three different memory tests after plugging in your settings (had to bring her down to 6000mhz but that's fine) and seems stable, zero errors or crashes thus far. Thank you so much for making this!

thank you man. I've heard mentions of you all over the internet and then I found you here... fingers crossed........ this computer was way too expensive to just have it run okay-ish most of the time... ya kno

Couldn't take the long boot times. Set memory context restore and power down mode to enabled again. Fixed boot times (about 35s). And latency only went from 61ns to 63ns.

Would these work on 64gb dual rank?

Thanks for this!

thank you for this!