Slight correction - some users are seeing PBO2 available on B450 motherboards. Another update: It is available on some boards with AGESA 1.1.0.0, including my Crosshair VIII Impact. Just tested the Ryzen 5900X in my own system - it can do a negative offset of 25.

Ali... it's 6am and I shouldn't be doing a BIOS update and tuning an undervolt... but here I am doing a BIOS update and tuning an undervolt.

MY Ryzen 7 5800x with a -30 offset: Novabench showed a jump from 4.68 to 4.83 GHZ and an overall score increase from 4195 to 4245. CPU runs 12c lower at idle and roughly 8 - 10c lower under load. Great information and a real worthwhile tweak for 5000 series users.

5600x user here. Wasn't able to apply -30 to my chip without introducing instability in games soI dialed it back to -25 and it's been rock solid now for nearly a month both in games, when idle and during stress tests . My temps dropped by 10c and my multi core cinebench scores went up by roughly 200 points! Incredible

Finally a guide by someone that really know whats he is doing.

With a negative offset of 30 this literally reduced core temps by 15 degrees while maintaining a higher clock speed, no joke. Any spike in load would cause my 5900x to jet up to 70-80 degrees on a 360mm aio, after applying this, that temp is around 55. Insane!

Thanks for the bios walkthrough of PBO2. My 2 year old 5800X saved 20 watts of package power with much lower thermals, while still scoring 3% higher on Cinebench at 15,750. Wish I did this sooner.

Brilliant video! Your instructions are clear, well explained, and to the point without skipping important information. Subscribed!

You went over the most important part of all of this in the video which is stability testing. The main issue that I found while trying out the curve optimiser is that even though you can test it each core individually or all cores at the same time with different stress testing programs this will can only guarantee stability during intensive workloads. Most of my crashes that I faced were while the PC was idling. I haven't found a consistent way of testing this aspect of the curve optimiser. I have checked reddit posts and different forums and I've seen people complaining about the same issue. The PC can be stable while running prime95 all night but it will crash while you just browse the web. I propose you do a followup video after you use the system for at least one week with the settings you showed and then report if the system was actually stable. Maybe even make a video that covers stability testing.

Yeah this is brilliant and seems like something a lot of proud overclockers would completely miss. After undervolting my 5600x by the max amount, and undervolting RTX 3080 to 0.85V @ 1875MHz I use a maximum of like 300-350W when playing games, not a single hitch. Crazy stuff. Combine that with Noctua cooler and case fans and my PC is almost dead quiet at full load, and generates a lot less heat. Undervolting all the way. So much more satisfying to have a highly efficient PC, rather than raging inferno just for a few more fps.

I appreciate that your video isnt full of filler stammering, um's, uh's, redundantly repeating yourself here and there, very straight forward, to the point. Im so glad i found your channel, you got a subscribe from me.

i've come back to this video about five times as i've swapped mobos/updated bios. thanks very much for this one mate

One of the best tech channels on YT.

easily the best ryzen undervolting guide I've seen, amazing content as always!

Simple, yet effective explanation. Good job. Best explanation I’ve seen with little useless information.

I love how concise and clear this was to understand. Thanks!

I was waiting a long time for your video on this Thanks a lot Ali !!

Absolutely spot on! This is a feature that is truly worthy of a "finally" :o But still, Curve Optimizer seems like a solution to a problem that shouldn't really exist. I got impatient trying to get a hold of a 5000 series and went for a good deal on a 3800XT, and I've been playing around trying to tame the ridiculous voltage it uses at default. PB does a good job of clocking up, but shoots itself in the foot with the voltage. Temperatures aren't an issue, as my loop is complete overkill, but it keeps sending CPU power into the red. PBO aactually gives worse performance, as, for some reason, it boosts 100MHz lower than default. Auto-overclocking is pointless for the same reasons, there's no point in raising the limits if it isn't hitting any of them. Then, I fell into the same trap as the 1V guy, "lets stick an ofset on and see what happens." I dialed in 250mV and it was looking good: immediately dropped 20W from CPU, clocks boosted better than ever. Then R23 finished and only gave 10k, instead of 12k... After a few more runs, I noticed the Core VID was higher than it should be, and HWiNFO64 was showing the "Effective Clock" as only about 3600MHz, even though the "Clock" was a good 4500/4600ish. Clearly the motherboard's idea of "Core Voltage" is different to AMD's. Dialing in a fixed frequency and voltage still seems like the only way to go for 3000 series. I've dialed in 4200MHz at 1.2V and it seems happy enough. Lots of tweaking still to be done, though.

This video still adding value. Just turned PBO2 on negative curve like the video suggests, managed to attain -30 first time. Can see all cores under 100% load hitting 4.3Ghz sustained with a vcore of 1.1875. Max temps were 66C on a 240 aio on a SFF case. Really cool, entire thing is a lot quieter now. Thank you!

Dude, every video you put out is well made, and it is also useful. Exceptional work.

Thanks for clearing this up. Great stuff man really appreciate this one!

Thank you for this brilliant straight forward guide. I just got the 5600X and hope to run it cool, rather than max out the OC, this guide's perfect for my needs.

Amazing, can't believe I've slept on this extra performance for a year 🤣 got my 5900x paired with a msi b450m gaming plus motherboard running pbo 2 with curve optimizer at negative 25 with auto oc set to +200, Getting identical temps as before with 3-400 mhz improvement in clock speeds in single threaded workloads and in cinebench r23 multi core test it holds a solid 4.6ghz all cores. Thanks for this video! Highly appreciated!

My G. Thank you for simplying this for me for now. I just finished my build and got a free upgrade from a Ryzen 7 5800 X to a 9 5950x. Yes my multicore performance increase was obv. amazing though single core score not as much.(as it could be). I have 4 cores peaking at 4.999 @ 38.4-72C (warm day). I may have only gained a slight 0.45 MP Ratio in Cin3R23 with my 4 cores now hitting 5049 MHz but my thermals are no longer touching 67c under load. This is a great stopgap so I can move the F on until I can learn more.

I am looking forward to trying this on my 5900x when it finally comes in. Thanks again for the great content.

Absolute champ, I've watched almost every video and learnt so much from you! You walked me through my NZXT H1 build, undervolting my 5700XT, justified my already purchased EVGA 3060ti XC and now this. 🙂

Very helpful video. With my 5600x I didn't try this but had pretty good results with a PBO of 200MHz. The same setting didn't help my 5900x much, but this -30 offset worked like a charm. My Passmark rating single thread went from ~3500 to 3670 and my overall CPU rating went from ~40000 to ~42500.

This has been a great guide helped me understand pbo and curve optimiser with my very first amd system i've ever built, came from a 9900k to a 5950x and mainly use my rig for gaming and have seen it do anywhere between 4750mhz to 4800mhz on majority of the cores, I am currently playing at 1440p and soon to be either 1440p ultrawide or 4k. Temps are a little higher in games and power compared to an all core clock at 4.6 but for the gained 200mhz they haven't gone up much, custom loop with liquid metal, open air test bench at the moment with the Evga X570 Dark until i get everything for the case i'm putting it in, ambient temperature varies between 14 degrees C and 24 as here in South East Queensland Australia it's getting towards winter. Thanks again Optimus Tech this video extremely helpful for someone just starting out with Ryzen :)

The perfect video I was waiting for as I'm using a MSI X570 board, thanks!

Amazing stuff. Now we need an Undervolt vs Overclock comparison. Would be the ultimate video!

Mate, took me 3 months waiting but my 5900X finally arrived from PCCaseGear. It’s a hot CPU. I have 2 x EK Coolstream 360 XE rads with Vardar fans cooling the 5900X and a RTX3090. GPU idles at 23 and max of 50-52 at full load. The 5900X idled at about 40 and max of 75 in Aida64 for an hour. Not maxed but still very warm for such a cooling loop. I used your exact settings in my MSI Bios and I get higher clocks, less max power draw, and max temps of 61 degrees. Idle is still warm but max is great now. You’re a legend. I love you videos. Wish I had the patience and skill to make the builds you do. Thanks for all you do 👍🏻

probably the best tip I've ever got regarding my processor...high performance without any drawbacks... literally free performance...thanks a lot mate!

Still running a undervolted I7-7700k after watching your video. Helped a ton! Also undervolting my 3060 ti. Love your videos!

Bro I literally just copy and pasted this into my bios, and it literally worked first try. I have a 5800x. Went from 4,499 MHz to 4600 MHz and it went from 87c max to 85c. This is insanely easy and insanely effective. I’m for sure subbing for this video. So easy to follow

Thx for this video... I was desperate to handle the temperature although I have a msi 360 AIO... Glad I have seen this video.... Now running about rock solid 80 degrees

WOW !!! Thank you very much for sharing this. And you did a very good job at clearly explaining and making it easy to understand, with no nonsense. The overclock may not be huge, but the temperature drop is significant. Can't wait to give this a try :)

Best guide so far, appreciate you mention the actual agesa version required. Don't think my board currently supports this as of yet so I've left the 5950x stock. Gets far too hot with PBO.

Enjoying the content VERY MUCH 😊😊 ALI!!

Just did that with my 5700x and an AsRock B450 fatality k4 gaming motherboard (ofc updated bios ) thanks amd asrock for the support, got that motherboard through 3cpus.And ofc thank u for your helpful video dude u rock,your graphs your quality in videos everything are top notch.Greetings from Greece buddy.

that bed track was grooving. Great vid too! just about to build my 5950x system

The thumbnail of this video was more dope than what AMD themselves could do. The content was great too!

B450 also supported! Works great with Asus b450m tuf beta bios with agesa 1.2.0.0 and ryzen 5600x. With a value of -20 I get stable improvement of about 5%. Value of -30 not stable though. You can find the setting in Advanced / Amd overclocking / PBO / Curve optimiser

Thank you for posting this! I'm trying to get my new 5950 dialed in, and it's been quite a few years since I've upgraded...

I needed this ! Thanks so much bro, you for sure know what ur doing

Simple, concise yet effective explanation which actually works in real life. Best channel ever

This guy is excellent! Composure, kind, knowledgeable, in formed, unbiased and very helpful.👍🥇

Thanks you so much! Worked prefect on Ryzen 5900 with MSI Unify x570. I had no idea before about this.

follow your gide. feeling much happier with the lower temperature (-10c). and my CINEBENCH score got even slightly higher. ur the best. thanks alot

Thank you ! I tried on my 5800x, honestly, I had minor issues and higher temps than using stock, but maybe down the line some tweaking will happen

This is really nice! This should be a feature where you can essentially do this with the push of a button. Imagine an optimized CPU profile that automatically undervolts with PBO2. Just like the XMP profile, you would just set it once and then forget about it.

Got My Ryzen 5 5600x 2 months ago and Man i loved it ! And soon after i came across this video i tried it and i got +300 Points in cinebench r20 and better cooling . Thank you for this amazing video and love your content bro

On AMD 5950x, MSI Prestige X570 Creation, G.SKILL Trident Z Neo 16GB 3800 CAS14. I was able to get "All core curve Opt. Mag." set to 24 and received 10134 on Cinebench R20. Thank you so much! Excellent video.

Nice, tried it out on 5950x, the -12 same as the video. 3Dmark score went up a bit, boost clock made it to 5053 instead of 5040, and slighty lower thermals and power draw. Nothing major but certainly a nice improvement. Thanks!

Was able to set negative 30 on my 5800X and got a big performance boost out of nowhere. I can’t thank you enough for such a useful info!

A simple undervolt increase permormance. Decrease power draw and temps which is amazing. Good Job Ali

Thanks you for this video! I was getting extremely high temps with my 5700x with ambient temperature of around 27c, after setting an undervolt of -.1,5 it went from that to 69c under full load

5600X with a -30 offset, Arctic 240 aio, and 4400mhz Ballistix is scoring a 4610 in CB20. Maintaining a 4.6Ghz core clock while not going above 55c. 3 years later this thing is still holding strong at an insanenly low price.

Hi Ali! Quick question. What software are you using to create temperature, frequency and all other amazing charts? :)

My 5900x with a negative offset of 12 works stable at around 77°C in Cinebench. Before that I got peaks on some cores to almost 90. Thank you so much! Trying to get a bit lower for even more efficiency.

Thx for the tips mann. I can't believe this reduce my cpu temp by like 8-10c while using stress test mind you.

i am really impressed with the quality you deliver and how clearly you explain everything! Definitely one of the best tech channels (also for mini itx build and in general)! Thank you so much for all your efforts! EDIT: corrected typo

This is awesome, and shoutout to Asrock for bringing this to their b450 gaming k4, to my surprise, the option was there!

Man this channel is super underrated. What great content.

Thanks for this guide. I managed to lower my temperatures on Ryzen 7 5700x on B450 TOMAHAWS MAX board from MSI. Idle temps are -5°C. I tested temps on Cinebech R23. All core load temps are -8°C and plus 1100 points! Single core is -7°C.

Man I love how power efficient ryzens performance is

wow this guide is great, trying this out on my 5800x to lower the temps and temps dropped about 7-8 celcius without any dip in my cinebench r20 score. thanks a lot

Thank you for this video! 5800X with a Deep Cool AK620. Went straight to Negative 20. Stable right off the bat. 10-15 degrees lower temps under average loads. At max load in Cinebench 5 degrees cooler from 85 to 80 max. Still boost to 4900Mhz. 30-40% lower peak wattage. Same or even slightly higher performance. Absolutely AMAZING! Not even going to push further than negative 20. That's all I wanted. My current idle dropped from 50 degrees to 35! It's like I installed liquid cooler.

Thanks man. negative 25 on my 5800x got me boosting between at 4.7-4.8GHz and staying at around 75 degrees max. Up from what my board was doing stock at 4.6 and 80-85 degrees

Thanks for the guide, for best results set the two best pair cores with less negative offset, the second best pair with slight more negative offset, and the rest at something like -20 -25. My 5900X is running at -8 best two -10 second best pair and -23 the remaining cores. Cpuz Scores: single thread 692 multi thread 10087 Cinebench R23: multi thread 22915

this is a great channel for a) SFF pc builds and b) undervolting your shit. love you ali!

I honestly didn't believe this would work BUT I saw performance increase of around 1000 on CPU-Z when undervolting to -30. Thank you for posting this!

Awesome! Did manage a -30 on my 5600x increasing 5% in performance while losing 10c. Also i just cleaned the case front dust filter from a thicc layer of dust and lost another 5c by just cleaning. Now im running full load super silent with my noctua u12a cooler and getting 55c of max temp. (ambient of 22c). Thank you man! I was already trying to achieve this with ryzen master but it Always tell me it wasnt stable (pbo+curve) but via BIOS like your video all works fine. No bsod or crash while benchmarking with cinebench r23/r24.

This dropped my 5900X idle temps by 6c, absolutely awesome thank you!

I had to adjust my fan curves to account for lower cpu temps for my build because the undervolt worked too well and my GPU wasn’t getting enough air. So yeah, it’s definitely worth

Thanks for the video! Just got my cinebench SC score to 1652 with a Ryzen 7 5800x. I’m pumped to do more testing and make sure it is an improvement in all conditions and stable.

Thanks man, 10c less temperature with a -20 value curve optimizer, could not notice any performance problem.

Worked like a charm. I was able to get the max value of 30 on my 5800x and msi mpg x570 gaming edge wifi. Improved my cinebench r23 score by 4% with lower temps and higher clocks than stock

Best PBO2 tutorial I've ever seen. Thank you.

Very well narrated and explained. Many thanks!!!

Just got a 5900x, now they're becoming available in aus again. Gave this a shot(-30 on all cores), fantastic results!!

Tnx a lot mann. it helped with my 5800x at -25. and its stable... love you

I love the content! Keep it up!

You are a living legend bro. You boosted my cinebnech score by 350points and my temps are lower than set pbo on auto. Impressive!

Thank you for such a clear explanation about PBO2. I've just come from 10+ years of Intel processors to a 5900X and found the advice from other places was to increase all sorts of limits which resulted in high thermals when doing pretty much anything (and low performance). This method (keeping power limits at stock), along with your explanation makes much more sense.

Wow! I was having high temps on my airflow restricted case with the stock cooler on my 5600X Temps were reaching 86C after three Cinebench runs with average score of 10835. After undervolting using my Asrock b550 phantom gaming 4 ac BIOS and doing the same Cinebench test. Temps maxed at 77 after the three runs with an average score of 11250!! Incredible. Thank you man!

great vid. did the underclocking. just what i need :D

Well that was easy. Thanks for the handy tip i was stuck on trying to do this. Subbed for the great video

just bought one. Thanks for this video!

I did this yesterday on my 5600x, Asus TUF x570 and was pretty amazed with the results, thanks for the guide. Before the tweak at stock cores would fluctuate between 3.7 and 4.6, and had some pretty high temps compared to what I was used to on my VERY old FX-8350. 50s idle and into the 80s just playing Overwatch on an h100i (my 8350 never went above 45, not that we can compare something so outdated, but I believe the FX-8350 did have a pretty high power draw, so I was surprised by this massive increase esp at idle, at only 65w on the 5600x). Anyway, I followed all of the steps discussed although I set the PBO limit to "Motherboard" rather than "Disabled" as directed in the video. Initially my -30 looked stable, but I got a number of blue screens when gaming and under load, so I dialed it back (er, up) to -28 and so far this has been a sweet spot with my particular chip and set up. I will report back after running in this set up for a while as I am planning on enjoying it and not tweaking anything further for some time. The result though has been amazing. The "base" frequency appears to have been bumped up to ~3.9 ghz, (The boost setting in BIOS is indeed set to +200 mhz) and the boost is now 4.8. It basically just sits at 4.8, one core at least is almost always at boost, with periodic dips down to 3.9, behavior I did not see under the previous settings where all cores would often sit at 3.7 under light load or idle, or perhaps due to temperature limits at load. The best thing; is that my temps are much lower. 38-45 idle depending on whether my A/C is on or not, and when gaming I have not seen over 71c. I would advise for anyone trying this on an Asus board, I played with only settings in the "Advanced" settings menu. There are also PBO settings in the "AI Tweaker" menu. I left all of the AI Tweaker menu settings to the default, which for me was "Auto". Now of course the 200mhz is not going to offer many daily use gains for people playing games. However, compared to old school overclocking where you got a small % bump and some higher temps, here I got much lower temps and more consistent, higher boosts. Those are real benefits, and you don't need to run a benchmarking tool or to be doing heavy rendering to see them. This curve undervolt really takes a great thing in the 5600x and makes it somehow even better, I'd advise anyone with basic ability to navigate the BIOS give it a shot if their system is set up to do so.

I am using the negative offset of 30 with my 5600x I have the exact same results as you do and so far (2 weeks now) everything runs stable :) great video

Mate this video is amazing thx so much got waaaay cooler temps on my 5950x now ❤️‍🔥❤️‍🔥❤️‍🔥

your graphs looks cool, very nice color selection

Outstanding tutorial and report. Appreciate you making such a polished presentation. 👍 PS 5800X owners have reported overheating issues. That CPU would probably benefit most from this.

I was skeptical of doing this at first, but my 5800x runs much cooler at all times; even under a torture test. I would hit 90c instantly with a 360mm AIO. Now it hovers around 80c sustained. I also have better single core performance, as my firestrike score improved by over 2000 points. Absolutely incredible.

Thanks! This works on my old 2017 Asus B350 Prime + Ryzen 5700X too (With the latest bios Update) 🥳🥳🥳

I did what you explained in this video (PBO Limits Disabled, Curve Optimizer -30) along with changing the "MAX CPU Boost Clock Override" to +500mhz and am now getting boosts up to over 5ghz! :) THANK YOU!

Hey, thanks for this guide. I've been looking at some other guides too, and found some different / other approaches, but yours netted the best results it seemed. My main concern which was highlighted by some people on these undervolt tweaks, is stability at low workloads (low speed, low core use, low voltage). Apparently when undervolting using the PBO2 the issue is not so much staying stable at high workloads whether single or multi-threaded, but the other end where e.g. a -30 might cause instability. The issue is that I haven't been able to find a solid way of testing this kind of stability - I did see some mention of using the windows repair flow, but that's quite a hassle to trigger, and I'm uncertain if it's ensuring full stability. Did you find a good way of testing low load stability? In addition, a lot of other users took a different approach where the set PBO limits to motherboard, then set a boost override (+200 ish), and then apply negative values per core, with the lower values being on the two best performing cores, and a much less aggressive undervolt on all the other cores (I think something like -15 on best cores and -5 on other cores on a 59000x). Did you try anything like that too? I guess some of the temp benefits are lost. For now I'll go with your approach unless I run into any sort of instability - but would love to hear whether you tried some of these approaches that most other people seemed to take, and whether they'd change your recommendations. This guide seems to fit the "typical" approach I've seen other places: www.anandtech.com/show/16267/amd-precision-boost-overdrive-2-adaptive-undervolting-for-ryzen-5000-coming-soon

Amazing! Dropped my temperatures for about 11 degrees celsius and no performance loss. 59 degrees at full load on Metro Exodus using a Ryzen 5600x. The only thing is that i used -10 in the PBO Curve, and it's very stable; no crashes. I tried -15, -20, but got frequent crashes, so i found out that -10 is stable for me :)

Thank you sir, i just got my PC parts and now im excited to build and undervolt my Ryzen 5600 cpu.

Well done, good job - appreciated and will be recommended.