Ryzen 5900x Undervolt Bios Settings: Lower Temps, Better Performance 

To help with stress testing on OCCT I have uploaded this video to show both single core and multi core tests. This should help check for a stable undervolt. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-77zBduI09gY.html

I upgraded my cpu and motherboard to the 5900X and earlier today ordered a h150i cooler and a new case to fit it in because my 5900X was hitting 100c with my NZXT kraken x53 240mm cooler and shutting my pc down. Ive since came across your undervolt videos and after applying the settings in cinebench r23 my cpu didnt go above 70c. You have just saved me around £250 as i no longer need the new parts i ordered. Thankyou so much

Option 1 work like a charm on my ryzen 5900x and MB Asus strix x470-F with 25 increments negative PBO. Thanks a lot for hints!

I've come back to your guide every time to set up my undervolting. Option 1 is just freaking perfect. Thanks so much for make it so easy to understand. Also helps having a ROG motherboard like yours.😆

thank you! i went with option one even though i had a high end cooler with -25. very very good results & simple too!

I haven't tried games yet but my temps on my 5900x have gone from 72-79 to 61-62 using option 1 at -25,fan down from 100% to 70%(noctua NHD15S)at load,very similar freq and similar scores.I am pc illiterate so no need to test other options as a bit of a faff for me lol.Found this vid easy to follow,just had to search for my msi bios settings,thanks for the vid

Thank you so much I spent like 3 hours trying to boot my system up after updating my bios because of the PCIe lane being reset to Auto again 🙃 😅 then managed to adjust it and now I was loosing my mind trying to restor my PBO setting with this new Bios menu thank god you made this video I would have been confused. 💯

Thanks very much for this. Your system is the same spec as mine. So far your level 3 is working g well for me. Take care and thanks again.

Thanks man!!! You really helped me OCing my 5900X, bless you

Option 1 worked like a charm for my 5900x. Thanks for the input.

Thanx I have a 5900x now and this did allow some new decent upper levels... instead of all core running at 4.0 now they'll run at 4.425 at 80 degrees and single core at about 4.850-4.8950 at 66 degrees with my noctua d-15 with one fan but extra fans all over my case..

5900X went from 8300 all core bench to 9091 in Cinebench. Thanks fella! You're an absolute bloody legend!

This really helped with my 5900x system after trying so many other tweaks. Thanx

Thank you for this great guide. Upgraded a few days ago from an 3900x to an 5900x. After some testing I ended up with your option 2 with the Curve Optimizer set to Negative 30 (started with 20, ran Cinebench, switched to 25 and ran Cinebench again and ended with 30). Cinebench went through without any problems, right now I'm gaming to see if it is stable. Stock: 20940 Pts ~4,3 GHz All Core Current Settings: 22770 Pts 4,65 GHz All Core

For my 5900X, I find it easier to tune on a per core rather than all core as you need to find your most efficient 1-2 cores first (the ones utilized mostly during single-core stress tests) and lower the negative offset from 30 down to the value that passes the stress test. When the stable limits are established for these 1-2 cores, you will find remaining cores more tolerant of high values like -30. In my case, it came to -25 for Core 0 and -10 fore Core 5 (most efficient core) and the rest are -30. The best tool for quick stress testing is OCCT (free) where you can choose which core(s) to test and to help identify which cores are your most efficient ones so you start with those first. So when you are running CB23, you can monitor core frequencies in OCCT. For stress testing each core, if you choose extreme with AVX2, the errors will appear within 1-2 min so it's an efficient way of tuning. Temp is sensitive to TDC so I keep it low at 120 to maintain max of 80 during CB23; EDC affects CB23 scores but not always in a linear fashion; I get a CB23 score of close to 23000 at around 130 and the score gets lower when I raise it. So you have to test for your CPU.

Thanks a lot, i went from 79*C to 74*C with more performance score on Cinebench, thats a good improvement for me.

Option 1 dropped my max temps by 30 degrees (83 to 54) in cinebench! No more thermal throttling! Thank youuuu

With the option 1 method, I saw a drop of around 12°C in idle temp and max temp has also dropped by 10°C. Also, I gained a little over 2000 points in Cinebench R23 score. Previous score was 18214 and now it's 20204. So a good bump in performance. Thank you!

Honestly my cpu stock was overheating for some reason, thank you for these settings! Option 1 is exactly what i needed!

Got great values on the R23 testing…thanks!

Ty for this guide, simple to follow; I use it and got great results.

you sir are a legend... my 5900x was hitting 4950mhz but would spike to 91c in prime95 and cinebench... now it sits beautifully in the mid 80c at full load without throttling and scored way above the norm of 5900x scores and 3dmark and prime95 was beautiful. using your option 1 and 2 combined. and my idle sitting at a 31c... gaming sits at a beautiful mid 60c where it would hit 80c with a 3080, games are now utilizing the cpu and gpu beautifully at 120-144fps at 1080p with render scaling up on all games that offer this option.

Thanks for this tutorial. With 13°C in my city with option 1 my result was CB23 21635 - temp 64 °. With option 2 it was CB23 22590 but temp jumped to 74°. I will have to see what happens in summer with 30°C. Without any change CB23 was 19987/20418.

Good starting guide. Rig = Fractal Torrent Compact , Asus Rog Strix B550-f-gaming, 5900x-Nhd-15 dual 140mm, asus dual rtx 3070 deshroud 2 x noctua a12x25 fans. Case fans stock 2x 180mm , bottom 2 x noctua 140mm, exhaust 120 noctua and Corsair rm850x . 200 ppt tdc 150 edc 140. CR23 multi 23386 -Single 1724. I personally went with finding per core negative offset. OCCT 1 hour per core set affinity with task manager. Prime95 same . Then prime95 windows safe mode set affinity task manager. Many weeks making sure lol.. never had a whea or bsod since I dumped my 5800x. Also big note. Temps max and hold at 72-74c on the hardest torture test avx-avx 2 etc. which are just not real world. This guide would be better served with setting bios first. Such as turn of spread spectrum with xmp oc ram. That will dumpster you alone. Plus power supply idle. C states and p states. Also turn auto for precision boost over drive in all places except pbo 2 where you are in advanced. Turn off fmax enhancer no load line calibration while finding CO negs. Also if you are failing tests for stability go into power plan ‘balanced’ and set minimum processor stage to 50% - 100% because windows is dumb asf sometimes. After finding stability then bring that back down a bit until issue. Possibly turn off fast boot in bios. There is more but really. The global c states and p states use best cores etc should be here. Good basic guide though

Nice vid man! It's my first time with OC and I did some tests following your guide: Option 1 (with offset -30) got 22047 pts mc @ 65°C max and 1609 pts sc Option 2 (offset -30 165/115/150) got 22764 mc @ 75°C max and 1623 pts sc Both tests performed with NH-U14S as cooler

Big thank you mate I dropped from 85 peak to 60 peak while running cinebench

Amazing just amazing!!!! Thank you!!!!

Thanks for the vid followed your settings with my 5900x and although the idle temps are only mildly better, under load (cinebenchr23) i am roughly 15oc cooler (65oc) and the performance is decent. Most likely it was my Asus mobo supplying too much voltage. I didn't have much luck undervolting via AI tweeker, so this is great. All set for summer temps, then I'll push it a bit more in winter.

Not gonna lie this mans info is so helpfull the 1 step just helped lower down like 15temperatures on my ryzen 9 5900x it was in game like 65-70 now it is in game 55-60

Thank you very much, I was able to undervolt my 5900X with a stable -30. All cores are boosting to 4.6Ghz and 4.9Ghz on single core. The only problem I think is my Dark Rock 4 but I do not exceed 90°C with over 4 hours of Prime95, which is the limit.

Thank you so much for this video. As you adviced I configured my BIOS settings to your Option 3 but I changed "All Core Curve Optimizer Magnitude" to 30. I tryed this because I have a huge pc case and a huge CPU AIO water cooling system with radiotor size of 360mm (3x120mm) and 6 fans on it (+18 Case fans, yes i'm crazy but hey I like it cool in the case ;) and I managed a very quiet fan setup so np). With this setup i now get a total Cinebench R23 MC 19500 SC 1337, 3dmark time spy result of 18096 (better than 93% of all results) (GPU 19518 / CPU 12809). My Setup is PC Case Thermaltake Level 20 XT, CPU 5900x, CPU cooler Arctic Liquid Freezer 360, GPU 3080 TI OC, ... and so on. My GPU dindt get over 63 C and the CPU was at middle 51 C - max 55,6 C with the mentioned settings. If you have any further advice for such a high level equip to reach even better results for this CPU, I would love to hear it.

Thanks, I'm considering this after a disaster with the Asus board I bought for my 5900X. Didn't care for the case anyway and it seems like my RTX3060ti puts off more heat than the 5900X on average, so I'm considering downsizing to a SFF case with a MicroATX board and a GTX1660ti or similar. The MicroATX board offerings don't seem to offer much VRM cooling.

Somehow with my rig with the exact same x570 meg & 5900x couldnt boot till i lowered from 25 to 15 using the first option; rest of the options works & my bios is MSI, thanks for the vid could finally have my pc stop shutting down due to overheating

Somehow I went to unlock the ultimate power plans and it seems to be the best in terms of thermals 5900x user here. Base on core temps the idle temps were around mid 30s to around 40ish

great video ive just built an AMD 5900X with very similar Mobo Asus Rog Strix x570-F im curious what PSU your using too I will def try your settings just running with no OC im hitting 73c max! in cinebench r23

My Gigabyte X570 Elite Wifi crashed and entered on a loop without posting video due to your settings. I got better results decreasing the Dynamic Vcore and enabling PBO as default

What voltage should be used with option 1? I have 4400MHz and CB is at 75 degrees. Idle is around 47-50. I have a NZXT kraken x73 and a Ryzen 9 5900x

Very pedagogical, interesting and professionall :) great! // Jocke

Great video!...I've tried your option 1, but in cinebench even though I got higher results (due to higher clocks), my temps remained the same as with stock settings (even 1-2 degrees higher)...my goal btw is to lower the temps...i have x570 aorus master and z63 cooler...mainly I want to do it i s because of warzone where I get up to 87 degrees...all other games go to around 75

One Love! Always forward, never ever backward!! ☀☀☀ 💚💛❤ 🙏🏿🙏🙏🏼

On a B550M Mortar: -25 in the CO, +200mhz boost override, Motherboard PBO limits, 1900 FCLCK. Everything else auto. Boosts to 5.15ghz and averages 4.6-4.9ghz. I guess I got a good chip from the original run. Super happy with it Edit: 1622 Cr23 single core score

Did your docp profile work out of the box or did you have to tweak it? Mine reboots spontaneously at low loads and i suspect the memory controller may need some voltage tweaking.

Instead of option 2 (I'm only using a hyper 212), I've selected "motherboard" in PPT limits which effectively unlocks TDP, limits TDC to 144A and EDC to 168A for my b450 tomahawk. Went from 4ghz to 4.5ghz but also 10° higher, now I'm at 80°

I have 5900x 12 cores and RTX 3060 and my pc freezes and screen goes black and then screen comes back and it again re renders everything when i move cursor to that place......plz help

what to do when cuve optimizer isnt available in gigabyte b550 gaming x v2 and ryzen master cant save the settings....

In the cpu booost clock override part I get enable enable (positive) or enable (negative) what should I put and what number 0mhz?

Do you have any idea why my computer gets a blue screen loop when i use option 1? it worked for like 10 min and my temps under load were great but then i got blue screen and it just repets until i shut the computer down (when i reverted all changes it worked again). I have be quiet! Dark Rock Pro 4 cooler and MSI MPG B550 GAMING PLUS motherboard. Help is appricated

Thank you

What does the PBO limits ,,,motherboard,,, setting do????????

i am wondering how to set the PBO setting in Ai tweaker. Should i set all parameter to auto ? Nice vid. best regards

If you have a 5800x you might not be able to adjust the PBO values. It actually made performance worse for me. Raised my temps to 90c and started thermal throttling. Could be my cpu cooler but I doubt it. I have 240mm Closed loop coolers.

You mentioned call of duty warzone, what do you use for renderworkercount in the advance config file for that game with a 5900x? I can't seem to find an optimal setting

Nice guide! I tried the high end option since I have a custom loop with 2 rads and I got an all core 4.5ghz with around 79°C and a score of 22849, Single core 1629 score at 4.948ghz with temps around 75°C(fluctuating between 71 and 80 at times). I used a negative 30 curve and manual scalar of x10 and +200 core boost. Balanced power program is the shit! I had it to ultimate performance and got lower scores with higher temps!!!! 🤯🤯🤯🤯

I have a 5900X + 3080TI with ASUS TUF Gaming X570 Plus and I am struggling with high temps in games like Battlefield and Warzone. My temps go between 85 and 92 Celsius. Cleaned all the fans, changed the thermal paste and nothing different happened. I've tried it with two types of air cooler: Aorus ATC800 and Noctua NHD15 (and this is by far one of the best) without success. I did what you told with your exactly explanations on the first method and the temps did not decrease. I really don't know what to do anymore.

Your voice is oddly familiar. Did you create some other content under another nick? One Love! Always forward, never ever backward!! ☀☀☀ 💚💛❤ 🙏🏿🙏🙏🏼

Hi I was searching on YT and I saw your video. Really new to this overclocking. I have a X570 Auros Master rev1.0, 5900X. 16GBx4 Gskill 3600Mhz (b-die) stock timings 17-19-19-39 running @ 16-16-16-36 v1.360. I enabled PBO, advanced (motherboard), thermal limit @75. I set my fan curve silent and run max 100% @ ≥70C. However my system boosts all the time and checking the vcore it shoots up to ~1.425V. It is annoyingly loud. I have a U12A, phanteks enthoo luxe case, 3x140 noctua exhaust, 1x140 rear exhaust, 2x140 noctua front intake. Any recommendations?

what about that "max cpu override" setting? in my updated bios there are 3 options, disabled / positive / negative if i choose positive or negative i also have to set a value. to match your settings do i have to set disable?

Thanks running cooler now i did option 1 it was stable , then tried option 3 no problems running cool 60c on BF2042, COD etc no crashes at all stable af! Ran Cinebench R23,R20 running around 56c to 60c. Even ran 3DMark CPU profiler highest temps where 70c then back down to 60c overall 65c on that stress test. idle temps with option 3 29c to 34c while watching your video. Thanks again your earned my sub..... Forgot to mention while running offset [-30 PPT Limit 185, TDC Limit 125, EDC Limit 170] running AIO coolermaster ML240 V2

Hi, when I have a twitch stream up or a stream up when I open a game they lagg I have the ryzen 9 i didn’t think that would be a problem with that cpu ? It also runs a temp of 70c on valorant etc even goes up to 75 sometimes… I just want to be able to watch a stream and no have it lag while playing please help .

Hi thanks for inspiration. In my case , i need to make a opposite. I had MB: B450M mortar, 5900x (from 2022 december), seasonic gold focus 550w, GTX 1070. I had unstable computer . I set CURVE negative 15 = i get higher temperature and CPU frequency, but low stability. I tried opposite way, and I set CURVE positive 5 - now is my stability ok.

Can't set Max cpu boost clock override to 0, has to be either postive or negative from 25-200. What should I do?

Anything experiencing mouse stuttering issue with option 1?

There a way you could help me out with this sort of thing? Been having issues with it and it's driving me up a wall

My cooler is Gigabyte Aorus Waterforce X 360. What is the ppt tdc edc setting you recommend ?

Thanks for that ®️👊🏼

Option 2 kept my temp at 34 degrees idle at 74 degrees c when running cine bench r23 and gave me a multi core score of 22274 using a h100i cooler with syy thermal paste

merci beaucoup pour la vidéo

5900X with X570S Master, 240AIO, 21C ambient, 3600 C16 B-die. Option 1 I hit close to 80C with -25 ACCO and score around 22700 with CBR23 MC, didn't complete a SC run to see the score but was boosting to 4.95GHz. Option 2, 165/115/150 I hit 70C with -25 ACCO and score around 22850 / 4.5-4.525GHz with CBR23 MC and 1633 4.95GHz SC. Option 3, 185/125/170 I hit 75-80C with 5700XT GPU running Heaven at about 60C (AIO is top exhaust, 5 intake fans, 3 exhaust including 2x AIO fans). Clocks were about the same, CBR23 MC score was a bit lower and package power was higher so not worth it. CBR23 SC runs were unstable with -25 ACCO after only a few seconds but were stable for a few minutes each with -15 and -20 ACCO, but temperature increased. Option 2 seems like the sweet spot with my sample and board. 175/120/160 was about the same but again was unstable after a couple minutes with CBR23 SC, but had highest MC score of just shy of 23000 at 22983.

I tried many things, but I ended up leaving my 5900x at stock. Why? Because I am getting 21600 on cb23 @135w boosting at 4.3ghz all cores. PBO and undervolt will get me on the mid 22k. Is only 4%/5% more performance. Maybe my 5900x is just a great out of the box. I am using a Fractal torrent and a noctua DH15 for cooling.

I just got my 5900X today. I was wondering could we get these same results by just running Ryzen Master and have it do the OC for us? Did you try Ryzen Master with your 5900x?

Is there an easy way to do this, but with single core instead of all core?

I tried option one and my pc wont go to windows. The moment i save and restart from bios it just goes on a loop of auto repair until i spam del to go back into bios. Any ideas on how to fix?

I have a Ryzen 9 5900x and exactly the same motherboard as shown in the video but I couldn't find the "Max CPU Boost Clock Override" option and I also couldn't set the Curve Optimizer to anything exept disabled, 25, 20, 15, 10, or even 5 crashed my PC. Does anyone have any tips for this situation?

Hello I’m trying to put a negative CO on the 5900x I’m using an msi motherboard. I’m struggling to find out which core crashes because when I look in the event logger after I get BSOD (that’s how I know my core offset needs adjusting) I can only see an error code from a bug check it says. I have finally got a good grasp of how to do this except after I get what I think is a stable curve after it passes corecycler over night , occt , cinabench and prime 95 for 10 minutes STABLE one would think but when I fire up a game I’m currently playing (Jedi survivor) I get the BSOD . My only recourse is to try and find the core that failed but after looking in event viewer I don’t see any whea logger errors only an error from a bug check which I assume means a BSOD error. Does anyone hace any advice on this problem ? Thanks

any recommendations ?

How can I set my factory clock (4.8GHz) to 3.8-4.00GHz?

Any reason why doing this locked my FPS at 225? I know it can stay at 240 no problem

I was wondering why my CB23 score was always below 20k, thanks man.. CB23 score was usually around ~19600, now its at ~ 20700.. CPUZ bench was around ~8600, now its ~ 9300, single core went from 635 to 670 too.. ive set my PPT to 155W, TDC to 110A, EDC to 145A as im on a 240mm AIO , cpu is now maxing out at 75C which was above 80C in benchmarks.. much appreciated EDIT: my benchmark runs are done with normal background apps open, chrome, steam, aura/armory crate etc.. and idle cpu usage around 4-5%..meaning i can get 4-5% higher score on benchmarks if i actually tried

how can i use Curve optimiser with PBO DISABLED?

I tried option 1, but it's keept crashing with magnitude set to 30...I had to lower it all the way to 15....

So my 5900x has been running way hotter than usual. When running Cinebench it stays at a constant 91c. I tried using your first under volt settings and the temps have lowered to the low 80s but that is still too high. I am running a Kraken Z63 and just reapplied thermal paste. Any ideas on what I can do?

I used to run my 5900 x with PBO disabled. I tried the option 1, I can't set a curve negative offset above 15, and see no difference at all in terms of temperature (is it normal ?). Above 15 my system crashes... A well optimized curve will always give higher temps than PBO disabled ?

Hello I have my curve set to -30 and it's stable. Multiple gaming sessions and benchmarks. My core freq on cores is maxed qt 4000. Never seen it go above that on multi or single. Not sure how I get the core frequency to go up or even fluctuate. It stays locked qt 4k it seems

I got my 5900x to 4.4ghz all core @1.100v 23000 points cr23 multi and i dont mind the slight loss in single core performance as i mostly game and prefer my temps belows 60°c where is at stock i hit 73°c gaming havnt really noticed an fps difference but i might try pbo all core -30 offset and disable pbo limits to keep stock power

Yours core voltage 1.432? What's your voltage ? Auto ? Manual?

Hey do you think it’s safe if I cap my cpu temp at 75? Or is it better to do your curve options ?

With these bios settings does OC software like ryzen master and gigabyte easy tune still take affect? Many thanks

ADD Final result i badly want know how much performance you gain form this settings

I already have this setup but was curious, the same options appear under AI Tweaker and under Advanced - I thought maybe it was just two locations for the same settings but when setting one it doesn't change the other (or maybe it only changes it after reboot?). Do you know? It's the same BIOS as you (Asus).

Cara, do nada meu processador 5900x disparou para 85 graus. De um dia pro outro, sem instalar absolutamente nada. Uso um deepcool de 140mm, ele ficava em 55 graus e jogando batia um 70. Usei seu vídeo pra reduzir uns 10 graus, mas mesmo assim estou estranhando isso, não é normal saltar assim de um dia pro outro. Tem alguma dica ? O básico já fiz, desmontei, montei, reapliquei a pasta térmica e etc. Ao reiniciar e deixar na BIOS ele fica com seus 55/60. Após algum tempo o WIN 11 rodando que ele dispara :(

i managed to put all cores on 4200 and downclock voltage to 1.1375V, that does decrease power for more than 10w and make it cool even using AVX

Ryzen clockspeed is not more important than ram speed and timing. Some people OC their ryzen cpu and get zero performance upgrade because they forget to OC the ram and utilize the timing.

hey man i just swapped out my 3900x to a 5900x, my gpu is an rtx 3080 but whenever i play a game my cpu usage is all over the place it changes every second and what i mean by this is it will go from lets say 20% to 60% to 45% to 81% to 57% etc it just non stop changes the whole time and the temp goes up and down accordingly , is there anything i can do about this, maybe a clean install of windows 10?? im about to just throw my 3900x back in and return the 5900x... my mobo is the ASUS tuf gaming x570 plus wifi.... thanks :/

im using ryzen master with 5600G...now its 1,125....its safe? Im not overclocking.. i just want more cool temps. Its ok?

Thanks!

U should add your system specs in the info. Particularly your cooling method. Glad to know my 5900x isn't the only one idling at north of 1.47

use HWInfo64, not hwmonitor - for ryzen gives weird data speaking about negative curve optimizer -25, i rly doubt it's stable :D just for 1 reason, it will not crash or turn off when on stress, it will shut down when will be in idle state

I’ve tried option 1 with no luck, once I change the setting to what you have the offset number at 15 20 25 30 all caused a restart at around 3min into a cine bench23 test. I successfully did the 10 min run on default but got to 81c this did lower my temps at idle but did not provide a stable operating system

I followed option 1 but it seems to run into a blue screen on restart. And then cannot fix itself therefore I have to restore to defaults. Any solutions?

I also have 5900x but I have a b550 Asus rog e. The only game I hit kinda crazy temps (in my eyes) 83-84 was in battlefield and in Valorant I’d get 67-72c def going to try this at home and see how this works