Easy 7800X3D Tuning and PBO2 Undervolting Guide

[@MarcoGPUtuber]

I undervolted and now I can hit the notification for Tech YES City videos faster than ever!

[@gangaindenial]

without hitting 89C

[@alemanmx1980]

I rarely post but there are some misconceptions in this video (not blaming Tech, you're doing what you can and the content is relevant and entertaining!). I have binned 5+ 7800X3D and while it seems initially that all of them can do -20 all core CO, they rarely pass real stress tests. Only 1 out of 7 can do -30 throughout the cores, and in some instances, some individual cores barely can do -5. PLEASE TEST YOUR CPUS PROPERLY. Having said that, I dont think CO is too relevant for 7000s, especially how YES also noted, you dont necessarily save on temp, it just boosts higher/longer. Therefore I suggest getting a very good cooler coupled with CO and dont worry if your CPU doesnt CO too much. ANOTHER thing Ive noticed is that some CPUs are just binned higher (better VID), where they run at 4890MHz out of the box (CB23) while others barely break 4850MHz with -20 CO. Finally, there is no correllation between CO and Max FCLK or MAX Bootable RAM Frequency. I much rather have a CPU that can do 6600MHz 1:1 at 2200MHz than one that can do -40 CO All Core. My best 7800X3D can do avg -25 CO (some cores -35, others -10), does 6400MHz 1:1 C28, FCLK 2133MHz with 100MHz or -5 CO All Core @ 105MHz (eCLK). EDIT: Also read about CLOCK STRETCHING.

[@mircomputers]

yeah, curve optimizer stability is much harder than intel offset or lite load undervolt to test in my experience. I also cant seem to get Core Cycler to ever error on me with zen5, might be missing something. It did work for zen4 and actual curves were in the range of 5 to 30 on most CPUs... pretty wild actually and that -5 core would cause maybe 1 crash every other month.

[@ferdi6346]

I totally agree, thats what we call Sillicon lottery. For me personally every core has different values that i found out by running Prime95 with every new offset for atleast 2hrs, once a core crashed i just set it to the next stage. Startingpoint was -40 ended somewhere between -21 to -29 for different cores. Did the same for my friend he had complete different results. One core could manage to run -38 while core 2 always crashed over -10. Ofc after running prime95 successful you should also try other things to somehow stress the cpu.

[@123TheCloop]

yeah I pointed this out in his 5700X3D and in this video. you rarely stress test CO results. as most of the cores primarirly crash at idle states and he also ignored the most glaring issue that in lot of cases can net you less performance and thats clock stretching. so while maybe -30 looks stable and doesnt crash, it doesnt also mean its the best result as you could be clock stretching to a point your losing performance. overall its a bad video imo, 2 crucial pieces of information were just left out, which is using Corecycler or ycruncher to test cores individually over several days of continious testing and clock stretching NEEDS to be observed when setting CO offsets

[@mircomputers]

@@123TheCloop does corecycler work for you to test core stability on Zen 5 ?

[@connostyper]

@@123TheCloop there is nothing wrong with the video. It shows the test improvements and how to test. With any instability you dial back. There is no way you will face clock stretching if you do it as the video. He also mentioned that is best to start with -10 probably a setting that most cpus will be fine. You set and test. He never said set it to -30 and forget about it, test it.

[@roB3rnd]

Long time overclocker with experience. Cinebench stable with these chips using curve optimiser is easy. However, they can seem stable but will crash infrequently if there is no load at all or dropping from high to low load. You can test with CoreCycler, but it's much more time consuming than with Zen 3 non X3D. TL;DR plenty of these are cinebench stable at -40 but will crash under no load until you dial them back to around -30.

[@kiam9941]

for instance i had two very slow cores that needed -20 even

[@B3tterEv3ryDay]

I was so happy when i used -30 offset on my ryzen 5900x , only to have it error it immediately when testing with singlecore and bluescreened me. In the end after a lot of testing , not 1-2h on all core ,which its pointless, 2+3 h on each core, i could say that -10 offset was stable on all cores, regardless of load.

[@123TheCloop]

thank you, CO results NEED to be tested in idle conditions because ryzen cores down volt which is why they can crash when you offset (drop the voltage curve) so in idle situations the core literally isnt getting enough power (think it like a GPU crashing when down volting) its a little complex than that but im annoyed he thinks just -30 and cinebench are "how you test curve optimizer"

[@CarnivoryHODL]

@@roB3rnd -30’s been great for me. So you’re saying -40 would be bad if going from gaming to browsing, for example?

[@roB3rnd]

@@CarnivoryHODL or just less load in games can also randomly crash. Just anything from high boost clocks to less clock on any given core.

[@everope]

I disabled the 2 weakest cores to make it a 7600X3D and set the power limit at 35 watts with a -30 CO. It's an efficiency beast and stays so cool and quiet I love it (I just use it for games where 6 cores is plenty and they boost higher)

[@De2t3ny]

you bought a 400 bucks cpu to cut the performance in half? this is the most braindead shit i have seen on youtube in the last 4 months

[@Atilolzz]

I think its very important to always double check if the undervolting worked by using cinebench. Because undervolting slightly too much wont make you immediately blue screen, but you get so called Clock Stretching, meaning it looks/"acts" like you get the desired clock speeds, but in an absolute test (like cinebench) you get a lower score.

[@xchirpimabirdx8816]

I agree. I always use hw info and look at the effective clock while doing an all core workload. Whichever cores are not reaching the boost clock is not good on the negative offset. I have -30 on all but 2 cores at -25 due to this effective clock seen on hw info.

[@mircomputers]

Are you sure curve offset does this? Afaik, this only happens with voltage offset.

[@TheNorthingNL]

Thanks for this follow-up, I'll definitely try undervolting my CPU 👍

[@Tech2C]

Your co-host, The Snowman, was the real star of the show ;)

[@jasonstone1046]

Made a decent gain on my PC. Thanks for this!

[@Games_and_Tech]

Wake me up when ryzen 9800x3d reviews are on line

[@Damian-fg8lt]

see you next year ;)

[@zerwal]

@@Damian-fg8ltwill it be 12 cores or 16 ? i want to see it i cannot waiiiit

[@TrakiGaming]

Wow! Did not know that you could optimize the x3d variants like this

[@techyescity]

Try it it's actually really good. I liked it better on the 5000 series x3d chips though.

@@techyescity😂

[@B3tterEv3ryDay]

Stop testing all cores workloads, it s pointless, you can test on a processor -30 offset and will not get an error for days, the moment you test each core individually it will error in seconds/minutes. Use tests like OCCT single core test or Prime95 with core cycling.

[@Mrk67-c1o]

Yes That cpu is 100% unstable.

[@dagnisnierlins188]

This, I could not figure out why my cpu was stable in OCCT all core, but as soon start to play games they crash or stutter.

[@OneFreeMan17]

O.o

[@Targetlockon]

YES man extracting that value!!

[@hellopsp180]

imho the 7800x3d is the modern equivalent of the 4790k It is just the gaming CPU for the masses that we all wanted.

[@el10leo]

$450 for a CPU ah yes "the masses".

[@BrolicPineapple]

Went from 17268 pts to 18015 pts pretty significant increase by putting it at -30 thanks bro

[@AH-video]

great video well done mate 😊 and thank you !!

[@jozsefilyes3533]

Very Good video ! I have an ASUS ROG STRIX B650E-F Gaming Wifi motherboard with Ryzen 7900x. I will try to undervolt it using this method. The cooling is done by a Be quiet! DARK ROCK PRO 4. I love Undervolt videos :) I hope to be successful. Thank you !

[@jamesg7456]

I did -20 CO on mine and it runs way better than optimized defaults. All cores can sustain 4.8ghz and boost to 5.25 ghz. I was blown away by the increases

[@arc00ta]

I can slap a 7800X3D in a $120 B650 board and it sustains 5250 just fine with zero tuning at all, are you cooling it with a potato?

[@starlightHT]

Tell the truth, you increase the bus speed... You have to say everything

[@starlightHT]

@@arc00ta If you want to lower the X3d's temperatures you have to lower the soc voltage to 1.2 and limit the voltage spike. Mine with factory configuration reached 80plusºC and with some adjustments it doesn't go above 72ºC whatever i do.

[@arc00ta]

@@starlightHT Why do you need to lower it? 72C and 85C are both fine, and at 1.2 SOC you're not going to be bumping up the fabric and RAM speeds. Since we're trying to squeeze the last 2-3% out of this thing might as well go all the way.

[@jjlw2378]

​@@arc00ta5050mhz is the maximum out of the box.

[@dillon4813]

Nice video. Thank you. Its crazy mobos and amd have defaulted so high. Just -30 and you get smoother and consistently higher fps with lower temps. Thats an insane gain so easily done.

[@ArkoN7]

Great Video, thanks. I tried this with an 7800X3d on an Asus X670-E-F and Gskill 6400 EXPO with a 4090. In a quick CPU-Z Benchmark I do get more performance with the values ranging from 20 to 30. While in the CS2 Benchmark I got around the same fps (730fps +-2fps) but the P1 value is dropping from 300fps to around 277fps. (I tested with 20, 25 and 30) So in my case I stay away from it, it only helped me in CPU-Z Benchmark but not in my main game I play CS2.

[@hansmaker1236]

I was able to oc the 7800x3d up to 5150mhz. Busclock from 100 to 101mhz was the key. Im not sure how safe it is, but atm it is stable.

[@normalguylmao]

bus clock modifies everything, not just CPU itself

[@normalguylmao]

Everything that runs on that bus (mhz) will increase by that 1 change

[@hansmaker1236]

@@normalguylmao that is true, but my sys is still stable.

[@MiniDevilDF]

@@hansmaker1236 How long has it been running like that? Doing that is "usually" okay, but you're still going to run into crashes. Even if it's just once a month. You'll also get all sorts of other random errors from anything else running on the bus.

[@hansmaker1236]

@@MiniDevilDF two and a half month. I would say, it is not more instable than without oc. 😉

[@matthewschneider4758]

Now use the Honeywell PTM7950 or Upsiren PCM-1 themal pad/paste and watch things improve even more after a few heat load cycles!

[@metabang03]

I wonder why you channel isnt 5x bigger. Your channel is solid AF. Your so slept on its crazy. Keep it up man, ive been watching quite regularly since i found your windows 10 optimization video, which was gold. But i admit ibdid find an insane optimization block of info that blew it out of the water. LoL still, im a big fan, and i hope you blow up in popularity atleast quite a bit.

[@jakeb6043]

Been a while since I saw you, sir. You should be getting more views

[@royr5527]

I just built my 7800x3d setup and running -30 all cores stable. I'm using a B650E Taichi. Thank you ohhh i gota try windows 11 pro link as well tomorrow.

[@De2t3ny]

i can absolutely asure you that this is not stable lol

[@royr5527]

@De2t3ny 0 crashes great temperatures . Why do you say that? Ran every benchmark and always passes. My ram is at 28 37 37 30 is that unstable as well lol. I'll give you my secondary timings as well if you want. Hynix M die 2 x 24.

[@clockwork4038]

if I undervolt with this program and have EXPO on, my system wont boot and i have to cmos reset... msi650 carbon, 7800x3d

[@ThePhoenixdive]

Same, have you found a fix? MSI B650 Tomahawk MAG, 7800x3d

[@icandrive4]

I'd like to wish for an updated version, which includes the Curve Shaper, which was initially introduced with the Ryzen 9000 Series. Nontheless, withy my newly purchased Asus ROG Strix B650-A Gaming Motherboard and Ryzen 7 7800X3D I also have the opportunity to use the curve shaper. I've played a little bti around and combining both the curve shaper and the curve optimizer and I can rock -40 Curve Optimizer. I've also set some curve shaper values, but since I ain't got what the feature works really I test them out currently. So far I have to say my 7800X3D is running with -40 Curve Optimizer undervoltage and clocks ingame like cyberpunk majority of the time with 5050 Mhz, and pulls around 60-65 watts. Therefore I can runs my AiO cooler and all fans in my system slower then with my older 5800X non 3D CPU. But it gets a lil warmer around 60-64° Celsius

[@kentuckye_3008]

Please help, I am using 7800X3D and 7900XTX Sapphire nitro+ but in CS2 my GPU usage isn't that good like the footage in this video. I enable PBO like this video, XMP, 4G Decoding, OC GPU, common window optimized. It turns out my FPS average is a lot lower. Like the Machine gun footage that your 7900xtx used 80%ish load but mine is 50-60% result in 100-200 FPS lower.

[@WayStedYou]

Should be interesting to see what we can tweak with the 9800X3D with the changes they said they are making to it

[@pwn3426]

very very minimal

[@ErraticPT]

​@pwn3426 We'll have to wait and see, as zen 5 now has a new "curve shaper" function that allows much finer control of voltages according to cpu (or individual core) load/temperature and "recent history", ie is the core speed/load/temperature ramping up or down compared from a few (fractions of) seconds ago. This could be a game changer as crashes often occur when voltages over/under-shoot with big changes in load.

[@dagnisnierlins188]

One game that shows stability is warzone, it will crash on the slightest instability.

[@Berkelll]

I had 17100 score with default setting and 17850 with -30. Is it okay? Idk if i did something wrong, but my CPU going to like 83-84 degree on the full stress test over few minutes. In games it's like 75 degree. Is it alright? ASRock B650E PG Riptide, 6000mhz EXPO ram, Arctic Liquid Freezer III 360.

[@Ex3LTheRaPiD]

got -30 stable, -35 booted but blue screened after a few hours, thanks bryan!

[@timmy1506]

Do you really need Ryzen Master for curve optimization?

[@Berkelll]

no, but u can test it there if your processor won't crash out. It's amazing program overall.

[@astreakaito5625]

It's the ram that's been difficult to tune for me, but great video! I have -24 on mine, I could go lower but I slightly lowered the vsoc just to be sure.

[@Toffetoffe85]

i got minus -30 seems stable but game or pc restart sometimes when only playing battlefield 4 random dont know if it my settings or the game but im running old bios 1809 rog strix gaming b50e-f gaming wifi. should i update bios? or need newer chipset driver.

[@mbardos]

I'm curious how many chips set to - 30 fail the prime95 small tests... Mine fails in a few minutes at - 20. Only managed to get it stable with - 15

[@qu54re65]

7900x3d with a Peerless Assassin 2 running with a -20 x3d ccd/-28 nonx3d ccd offset on a 100W limit. Scores the same as stock in multithread but showed about 8% gains in single thread performance. At the stock power level (120W) I got an additional 4.5% multithread performance boost, but I didn't feel it was worth the power and heat. I can now run looped benchmarks indefinitely at 71 degrees 60% fan speed vs 78 degrees 100% fan speed at 120W(stock). There is absolutely no performance reason to buy a watercooler for these cpu's when a decent cheap air cooler works just fine.

[@silfrido1768]

what’s the max ppt for the 7800x3d ? Tdc & edc are motherboard related. it has to do with vrm’s voltage

[@alexal-haddad790]

I have a 7700x and my motherboard is a Gigabyte B650 gaming X AX V2. What are the best settings?

[@_oriTech_]

awesome as always.

[@theos.8373]

Do you think i dont have to undervolt my new build with 7800x3d cooled by thermalright peerless assassin 120 se?

[@greggreg2458]

Oh yes, thanks!

[@mr_essentialx4080]

i got my core CO all the way to -50 is that beneficial or no idk if too much will produce anything

[@Berkelll]

Funny how i watched this video and i exactly bought ASRock motherboard, so it was easier to navigate with your video. I choose ASRock over MSI because i heard they are more stable on AM5 platform, but god ASRock UEFI is so confusing sometimes. It looks kind of like old bios with better graphics and more pleasing to eyes.

[@fr0sty1998]

In Ryzen Master it will show your best and second best core with golden star and grey star. Best way is to give them lower offset then all other cores and u will actually improve performance. For me my 7600x is currently stable at best core -15 second best core -20 rest of cores -25.

[@Targetlockon]

PPT, TDC, EDC maximum it should hit? recommended without maxing out the values

[@oinah7971]

My cpu passed -40 on Ryzen master but wouldn't post. So i dropped it to -30 and ran cinebench got 18714 on multi core and 1828 on single core Didnt got past 75.3°C with a 360mm aio. Did i do it right?.. can i play call of duty like a pro now?

[@viliuskasmocius1962]

Great video! By the way, what are your thoughts of Intel confirming oxidation issue on their CPUs?

[@Rock44Digi]

I'm running -20 all cores, and my 7800X3D is usually at 5.04ghz while gaming. At -0 all cores, it was the same. Thoughts??

[@bigcreoman]

On 9:41 I see lower AVERAGE fps, 1c temperature win. what a undervolt OMG

[@bigcreoman]

WIN IN CS, that goes on ryzen 3600x? f#ck it.... why 7800x3d is limited by 90w

[@bigcreoman]

it has TDP120w, WHERE IT IS? WHERE 120w and more

[@monkeewrenchT]

PBO Offset > Same Temp, Higher Clock Vcore Offset > Same Clock, Lower Temp

[@Kapono5150]

For me a negative 20 offset seems to give me a great balance. Also anything more than 1.2 SOC isn’t necessary

[@Lonewolf23-26]

So I was stable at -30 but would going to -20 give me a bit more performance? I’m new to this, cinebench score went down from -20 to -30 but gaming seems unaffected as I tested them.

[@Stiwen666]

Higher SoC voltage is needed for higher RAM frequency, while lower SoC voltage is better for higher FCLK speeds like 2200MHz. I have set SoC at 1.26v and run stable 6400cl30-38-30-44 with all other timings manually tuned. It's in 1:1 ratio with FCLK at 2133MHz.

[@CarnivoryHODL]

Great timing. Just finished a SFF 7800x3d & 4090 build. Quick follow-up question. Would running -30 PBO & ECO mode make a big difference vs just -30?

[@vincentvega3093]

Why would you run a 80w chip on eco

[@kiam9941]

if u want lower wattage dial it in via pbo ppt limit

[@kiam9941]

​@@vincentvega3093wuold go at higher than 80 and the 3dvCache blanket makes the cpu get very hot

[@alemanmx1980]

please dont do ECO you will cripple performance for no reason.

[@CarnivoryHODL]

@@alemanmx1980 how much so?

[@AgentMoler]

I think something more reviewers need to mention is their idle temps for the chips. I thought for the longest time that I was having some issue with my chip with it idling 50-60C but apparently, this isn’t abnormal. If you were coming from a mid range Intel chip, you’d think something is wrong. Lol

[@MrFuzzy_1337]

Ryzen Master is not good to test the stability. My 7800X3D is validated up to -40 by Ryzen Master but it's not stable even at -30, I have to keep it at -20 for daily use. OCCT and Warzone crash after a few minutes at -30. Garbage utility.

[@axel4471]

hey im using a asrock phantom gaming A620i and when i go to pbo setting there is not avanced option for me, i have the 7 7800x3d

[@Nickussss]

It's because of A serie - the simplest entry level motherboard. Only on B and X serie you can manage to do it.

[@englishdave8635]

so can i do this on my Amd 5 7900x to get the temps down?

[@zebedee23]

I just did this is bios with my asus x670 motherboard in the precision boost overdrive tab. When make any changes on ryzen master my pc won’t boot after the restart and my d-ram light comes on. Maybe because I’m on windows 11 , either way I get cooler temps with just the motherboard settings

[@catalinneculita4988]

You rock man! you know how to undervolt and boost amd cpu… with little steps you can fix an Intel Cpu and stop crying like few weeks ago in some “copy/paste” video like many techtubers about Intel fails🎉

[@idied2]

For ease of use, couldn't that be set as a preset for Ryzen master? Because I've been tempting to do that with my Ryzen 9 5950x

[@ConnorH2111]

My 7800x3d can do -30 no problem but i ran OCCT ram and cpu extreme test and got WHEA error in 10 seconds, so i just run it at -20 passed 1 hour OCCT test no problem.

[@123TheCloop]

WHEA error means a core or multiple crashed........ this is why you test using corecycler and do it for extended periods. cinebench r23 is dog for stability testing CO values

[@ConnorH2111]

​@@123TheCloopI'm not using cinebench for stability testing though.

[@123TheCloop]

@@ConnorH2111 doesnt matter what your using, -30 offset is not stable if your getting WHEA errors, (these are core crashing errors) should be Event ID 19 if its a core crash. His video is to be frank just poorly informed, any offset value YOU NEED to test under idle conditions (this is usually when core crashing occurs) which he just misses completely (either intentional or ignorance) If your getting WHEA errors and its not an Event ID 19 error (something else) then its more than likely not the CPU but a bios issue, it happened a few times on Ryzen 5000 with some bios revisions causing WHEA errors. But please, dont use OCCT/cinebench or pimre95 to "test offset values" download corecycler (which does use prime95 ironically) but its on a per core basis and does random work loads at varying usage levels per core. you need to run this for a good 3+ days when testing offset values and see if any cores are flagged as "crashing" or failing in the program. Then you need to use something like cinebench to watch for what is known as "clock stretching" which is basically the difference between your effective clocks and "core clocks" value in HWInfo, any difference greater than 15mhz means your CPU is reporting an incorrect clock speed mometarirly due to not enough voltage to the core/thread so as a result misreports the clock by throttling down to match the given voltage supplied. (again something he grossly doesnt mention) So while that -30 could be stable even after corecycler testing, it might actually be yielding worse performance than lets say a -25 offset due to clock stretching

[@Berkelll]

Did someone test all those options he turned off for w10? Is everything works alright?

[@antraxbeta23]

aye no, the wifes 7800x3d as soon as you even look @ pbo2 it will be unstable.

[@0.0_TV]

I’ve use only -25 on my 7800x3d cpu for more stability and it’s Amazing 😂

[@XtremesTV]

Anything happen, I want too do this but im very scared (:

[@0.0_TV]

@@XtremesTV just don’t push you re system a lot and it’s safe

[@leadslinger5130]

I just bought a new mother board and a 7800x3d because my intel 13700k is basically dead. It stiaght hard crashes as soon as i try to load any game or CPU load. I currently have it down clocked to 4.2 on the pcore and 3.4 on the ecores and still cant do anything. My new parts get here in 4 days

[@JuliuszBaczynski]

does not latency increase if undervolting?

[@XLoad3d]

nice. at first I was like "whats the point" on one of the best CPU's on the market right now right. but why not it's leaving performance on the table. get that thing tuned in and rolling. so it appears i've hit the silicon lottery -40 doesn't crash for me.

[@jekot1]

Does this tuning work on a a620 mb like u did with the 7950x

[@everykneeshallbow5719]

TECH YES P DIDDY! LOL love you brother.

[@Sourenics]

My cpu is watercooled yet I get 85ªC on Cinebench test... Your temps are better than mine...

[@lew_7]

If you set your curve to -10 or -20 -30, do you HAVE to go into the bios and match the value with your PBO? Or can I just use AMD Ryzen Master, set it to the value, test it and then good to go?

[@martindescoteaux9288]

No and yes but apply and reboot.

[@25MHzisbest]

My 7800X3d -30 hits 19K in CB23. In my monster open loop! (3x 360, 1x 120 rads)

[@Mr11ESSE111]

that kind of CR23 will have r5 9600x and around same performance at lower price

[@techyescity]

Lol that's a lot of water cooling brother!

[@25MHzisbest]

@@techyescity -36 is just about OK for a CB23 run for a number, best I've managed is 19.2K. Really pushes all 8 cores to 5050MHz if you get the undervolt right down.

[@gimbleguy]

Brian can you please use Aida64 > Benchmark > Sha3 test for your cpu to see if your Overclock is stable??

[@The_Noticer.]

Same deal for the 5800X3D, this is absolutely essential if you own an X3D CPU. Mine is probably a golden sample. I have a -112mvtt undervolt, plus a -30 PBO offset (since you can only go to 30 with 5000 series, so im essentially cheating and making it -45/50 myself). It's only using 81W all-core. It's pretty toasty here now (28-30 ambient) and I was seeing 90C peaks. Now its more down to 70ish.

[@De2t3ny]

you gutted that thing by this much and you are still running 70 degrees? you might want to install a cooler next

[@The_Noticer.]

@@De2t3ny Gutted? Its performing faster than out-of-the-box. ANd it has a NH-U12S. Dont knock what you dont know, as you clearly dont.

[@De2t3ny]

@@The_Noticer. thats great buddy. enjoy your overheating cpu then lmao

[@The_Noticer.]

@@De2t3ny its not overheating, 90C is TjMax. Have consulted forums and everyone is seeing these numbers. Why do you care anyway, go be some adverserial cretin someplace else.

Whatever I do, I can't make my CPU stay at 5050MHz All Core in game. I tried all core or per core PBOs. I use x670e tomahawk.

[@romuluxb]

Pro tip, don t OC the 7800X3D, especially PBO, it causes instant stuttering, for example in CS2 it s terrible. It s a very good chip at stock settings, less headaches!

[@Silent-1983]

I set all cores to -30 with an PBO on 80 Celsius limit, and my temperature was the same in Battlefield 2042; I just don't understand the point of undevolt for the 7000 series! I have a 7800X3D, and I don't notice any changes in games; the CPU is running great, and the only heavy CPU game I observe is 70 degrees Celsius, the rest are 59-65 degrees Celsius!

[@maxiu..]

I had to increase CPU related settings in DIGI+VRM section of the BIOS to 120% to get a stable -30, without it it was stable at only -16

[@starlightHT]

It's not true, we can do Oc at 7800x3d even without access to the multiplier. The old way is to gain 150 to 200mhz easily, move the memory back, FCLK and increase the bus speed... Technically it's not worth the time.

[@memberberry462]

Curve optimizer is really frustrating to work with because when I run every benchmark for stability, things work out great, but after two or three weeks, my PC crashes just while idling.

[@MrDannysomebody]

Does this work for 7950x3d ?

[@everykneeshallbow5719]

This gut knows what hes talking about.

[@123TheCloop]

no he really doesnt, if you value a proper stable CO offset, go in intervals of -5 all core and keep testing using corecycler and watch for core crashing (and observe for clock stretching)

[@B3tterEv3ryDay]

True and i swear i watched like 6-7 on this, every one of them barely did any stress testing and called it stable at -30 offset. My ryzen 5900x which some said undervolts really well, if you stress test with cinebwch or other all core workloads it works at -30, but its stable only with -10 offset.And i properly stress tested each core individually for about 2-3h each.

[@RedboltTech]

Will this void the warranty of my cpu?

[@mdelrayo5877]

should make a vid on a msi motherboard =)

[@robertmyers6488]

I saw a video discussing the effect of load line calibration on offset? What are your thought on that for stability issues?

[@chameleoneel]

Maxing out the LLC will make the CPU run hotter. You will get a lower Curve Optimizer number, but your CPU will run hotter. And that's because High LLC actually overcompensates on voltage. My 7800X3D can do -39 with the LLC maxed, but runs ~8 degrees warmer in Cinibench, than - 20 with the regular LLC setting.

[@robertmyers6488]

@@chameleoneel Thanks for the info.

[@Hjominbonrun]

watercooling? I have an AM3 air cooler on mine and it is great.

[@nc3799]

Can you help us with i9 14900K

[@a40ozofmickeys]

Validate Offset is not enough to find stability. I had to come in here and chime up. Been using offset for a while since back when it was capped at 30. I know my chip can only do around 20 all cores, but ryzen master validated at -40. This boots but is an almost instant crash in Cinebench R23.

[@DieselX99]

7800x3d (Curve Opt. is at -39, -40 was too low) with D15 Cooler, ambient temp. 26-27 Celsius, x670P-Wifi MB, 6000MHz DDR5 CL30, Taichi 7900XTX and I'm averaging 18200-18500 points in Cinebench (10 minutes), CPU temp was around 85-88 Celsius, Throttling is set to 92. 😅 Should I fine tune it more, or is it good? It's stable while I play, or stream as well (CPU Encoding x264 with OBS, 3440x1440, but stream is FHD). Edit: Changed to -30 and Throttle temp to 80, avg. 17300 points in Cinebench. Goes back to -39 and 92. Still looking for advices. Thank you!

[@Berkelll]

buy AIO cooler.

[@DieselX99]

Bought an AIO, tested the cores with Prime95. SoC 1.150V, Curve Optimizer: 1-5 Core -39, Core 6: -35, Core 7: -38, Core 8: -37. Prime95 Test duration (Blend all of the above): 6 Hours, 500 Tests, 0 errors. Cinebench: 18531 pts @4.85Ghz with peak temp. 78 Celsius. I can maybe fine tune it more, but wanted to test it with games + streaming. 65% CPU usage (x264 encoding), 60 Celsius, and because of the AIO, I have better airflow in the Case, this means that my GPU temps are also lower on 100% usage, it sits now at 65 Celsius (80 Celsius Hot-Spot).

[@peterzsivkovits231]

My points in R23 19016 with maximum temperature of 81 degrees Curve Optimizer Negative 30. The air cooler is a Be Quiet Dark Rock Elite

[@IBaknam]

19016 is insane... max i got was 18751 with max temp 84c at a -30 and R23 in high prio

[@peterzsivkovits231]

@@IBaknam I also set the PPT limit to 85W and the Platform Thermal Throttle limit to 80

[@IBaknam]

@@peterzsivkovits231 my chip pulls 100w with standard bios settings for some reason

[@yukselarda]

I would adding corecycler and linpack extreme to makle sure the cpu is stable. I can get cinebench to run at -30 all core but during linpack stress test, i did get random resets until i got it down to -20 and -15 on my worst core.

[@LastCrystal]

Do I need to install both PPM file & 3D V-Cache Performance Optimizer when installing drivers for 7800x3d? I've read that those drivers are only for the other 3D models with more than one CCD but the drivers still show up with the pack I got from AMD

[@techyescity]

For 7800x3d just downloading the chipset drivers and updating the bios is fine. 7950x3d can be a bit of a headache but I generally don't recommend that cpu.

[@MiniDevilDF]

We need a better and faster way to quickly tell us the highest curve optimizer setting per core. It takes a fair amount of time, at least a few hours, to do it all manually to maximize per core settings.

[@angeldimitrov5402]

Same video for 5800x3d?

[@45eno]

I usually just do a light CO of negative-20 or -10 all core as -30 seems to create more stability issues.

[@adycoke2]

i set mine (7800x3d with be quiet AIO 280)in BIOS with -30 its stable but still get high temps like 86 celsius while gaming.

[@IBaknam]

mine hits 87c in a R23 multicore run when my room is pretty hot with a 240 AIO from arctic. When I play super cpu heavy games like warzone i max out at 74c so 86 is def. too hot

[@martindescoteaux9288]

Just set max to 80.

[@Imhim337]

Mine didn’t crash til -50

[@ktms1188]

I’ve actually overclocked in the past. I’m no pro though. Still dont understand the benefit of under voltint though.

[@John_Doe1980]

every time i do this on any am4 am5 cpu it always crashes games even though prime95 and cinebench are 100% stable - any advice ? and thats even on -10 which i thought any cpu could handle Asus b650 motherboard 7600x was on before and 7800x3d currently installed

[@jjlw2378]

What brand motherboard do you have? You'll need to either increase or decrease your Load Line Calibration (LLC) to give your CPU more voltage under load. This could stabilize your CPU under lighter loads (gaming, KZbin, idle), while still providing plenty of voltage in heavy loads (R23, Prime95, OCCT). Experiment and see if that helps. Good luck!

[@123TheCloop]

because prime95 and cinebench are NOT what you use to test stability for curve optimiser results.......... his video is illinformed (again) use ycruncher (pref corecycler) and test idle stability of each CO value and I can bet you get failing cores on 1 or a few values which is probs why it "looks" stable under load but doesnt in games as most games will not always slam the CPU to 100%

[@John_Doe1980]

@@123TheCloop how long do you let corecycler run it says iteration 1/10000 sure i will be dead before it reaches 10k :D all 8 cores ran for 6 mins fine

[@John_Doe1980]

After 3 runs i checked logs and it shows all tested passed i also noticed some people saying asus motherbaords have ai tweaker Curve Optimiser and advanced menu also has Curve optimiser which one is best to use?

[@jjlw2378]

@John_Doe1980 I don't think it matters. I use the menu located in AI Tweaker, but if you want, you can set the same values in both locations to be sure there aren't any conflicts.

[@samuraiendelsa4318]

Strange but I can't go less than -8 ,-30 not even try tho

[@adrienmeesemaecker2054]

B650 steelegend I get for 189€ is not too much cheap I hope :(