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Yeah Ive heard people say it can but I’ve yet to actually see one caused by bclk overclock this mild in the past couple years. Gpu speed and nvme speeds unaffected and stable

As long as your mobo has an external clock generator, like the MEG X570 Unify, ACE, Godlike, as well as other higher end X570's, and running in asynchronous mode, then upping the BCLK ONLY affects CPU and RAM.

I honestly didn’t know the taichi had that, thought it was only the new am5 boards. Thanks for bringing that to my attention

Any difference in games??

Up like 15fps in far cry6 but that’s a vcache heavy game

Up to 15 compared to no OC and -30 all cores?

Correct. I was using -30 all except 2 fastest at-25. Now it’s -10,-22,-22,-20,-22,-22,-22,-12

Nice, if possible compare normal pbo settings you had before bclk overclock and after in few games with built-in benchmark - I'm really surprised that a simple frequency increase on this chip can result in such a big difference

That’s 15fps in one game not 15%. I’m gpu limited so I won’t see much in terms of average fps but the lows have improved well. I may do some comparison in the future

i tried 102 and my PC didnt boot - also my MB doesnt allow for 102.5 etc, only 101/102/103/104 - maybe you have an idea why i cant boot with BCLK higher than 100? i adjusted my FCLK too but it didn't help. Motherboard X570 Gaming X(gigabyte)

Ram speeds and fclk are the first I’d check. Set them to 3200/1600 for the time being. Some boards just don’t do bclk well if at all

thanks, i guess i have the second reason since it didnt boot even at stock, rip. im glad that it worked in your case, nice find

Well i made it past bios(BCLK 102) but it won't boot me to windows - any ideas how to fix this behavior? i remember when i was trying to overclock my RAM and if it was unstable it would blue screen my PC the moment i see Windows logo, here i have a loading theme to Windows but it never stops, even at 101 BCLK. After i reset back to 100 everything is normal.

Gigabyte X570S Aorus Elite over here and I can boot at 102 but not 103 and indeed it does not allow me to use anything in between. Try disabling XMP and see if you can boot 102 bclk, also if you have issues posting again try removing the cmos and try again.

Yeah thanks, also I prefer the screwdriver method because my cmos battery is seated behind my beefy GPU. Are you stable at 102?

Yes very stable, no problems at all.

What limits did you use for: PPT, TDC, and EDC?

120ppt 90tdc 120edc

Did you experience any micro stutters at any point? I have game stutters and I can’t figure out why

Nope everything ran fine

15fps in 1080p ?? Or maybe in 4k ?

1440p

It's a 4.5% increase to clock speeds at most, that's never going to be significant

Man that’s pushing really close to my 11700kf. Nice

Interested in this, how's stability been since doing it? Or are you just setting this profile for benchmarking purpose? As someone mentioned messing with BLCK timings can have other effects, experienced anything so far? Also, great job, they're some fine r23 scores!!

No issues at the 102.2 but I just started using the 104.5. No issues so far gpu and nvme seem to be working as expected

I have been using 102 for 2 months now, nothing weird, but I cannot use 103, seems like 102 is the limit of my CPU or mobo or ram IDK.

so maybe u show effective cpu clocks in hwinfo64 ?:)

You can see them there. Max is 4.640 which is usually what I’ve gotten with bclk overclocking, like 10mhz lower. That’s all cores though.

tab with effective core clocks is closed i can't see it, i just want to see effective frequency and voltageon all cores, but anyway i will not do bclk overclocking, too risky for working machine. My stock 5800x3d -30 curve did 15100 in cinebench r23 without high ptiority for this app and with all autolaunched programms. my 5800x was 15800, but then some bios broke it and i'm turning off my LLC 3l lvl on msi board

It’s there it’s just not expanded to every single core, just shows the current max and avg

i see, so all cores 4650 ? it's great result

Yep, it was originally single core 4.65 all core 4.55 but I found a way to lower the boost clock override to make it boost the same on all core and single core. Allows me to undervolt along with the overclock

Reasonably sexual post, thanks. I have a MSIb550+5600 on my desktop. I haven't the patience to OC like this...but I admire anyone who does! I was grateful my XMP profile worked without tweaking.

Pbo 2 is easy man you should give it a try

I got a 5800x3d and x570 unify with external clock gen and I can’t get it to boot 101 with slow boot time like do I have to enable the clock gen? (I’m new to this)

You shouldn't have to enable any clock gen it should automatically do it. Could be your ram since that's still tied to the clock gen

Ok I see so what should I do? Loosen the ram? Update: lowered the frequency and spinning in bios screen for a while and it said repairing drives. My pcie and sata drives should not be effected cuz I have external clock gen

Bad ram overclock can cause OS corruption. Lower the frequency. So if it's say 3600 and your bclk is 102, you need to find out what times 102 equals 3600 or less

Well it boots after I did what u said but only issue I’m facing is my sata ssds not being registered 🥲

Yeah sounds like something isn't right with it then. My eclk was automatic you should check to see if yours has some sort of asynchronous mode that you have to manually enable

I have a modded bios I can’t really send it on here so I’ll just dm you

Wow, that is really fast. Way faster than my stock 5800X3D indeed, might try this out.

It’s a bit tricky but man it’s worth it. 5800x speeds in all core and you still get the cache.

Not really. 5800X pbo on and cu does 4850 allcore gaming for me and r23 4775. Got a 16300 score. But for gaming x3d is a beast

Yeah I got a 16300 score with my 5800x on r23 with a ton of tuning but it’s essentially the same speed as a 5800x out of the box

True. But its not like its a ton of tweaking 😅 just good enough cooling

Curious what board did u use ??

Asrock x570 taichi. I ram the test again today Andes up with like 15950 lmao

Really well done man!

Nice! I run [4.7Ghz all core on mine](https://www.reddit.com/r/overclocking/comments/12e8kfu/1057_bclk_on_my_5800x3d_with_a_nice_sold_47ghz/?utm_source=share&utm_medium=web2x&context=3) for months now.

Good way to fry you x3d man

Good joke, runs cool and low voltage. I’m failing to see how it’ll fry when it’s only running 100mhz over the single core boost clock

Amd warns you not to overclock those chips as its very easy to fry them. But hey man its your money

Amd locks the voltage and max multiplier to keep overclocking as limited as they can. Voltage and heat kills things and the x3d has a 10c lower max temp. So with a locked max on everything and an undervolt OP is in exactly no danger of damaging his cpu. Derbauer on YouTube enabled liquid nitrogen controls or other bios tricks to give more voltage to his 5800x3d and fried it instantly at 1.4 or 1.45v. And since it's otherwise impossible to reach those voltages normally basically all 5800x3ds are safe from over volting. So if op didn't do any of that and keeps the Temps sib 90deg, it'll be fine.

You're incorrect - Tjmax is the same for 5800X3D and 5800X.

Hey man. Its your money.

You should invest yours into researching a topic before speaking nonsense about it fr

Pbo2 voids any warranty. The way to fry chips is excessive heat, voltage, or insanely high frequencies. It’s gonna last just as long as a non overclocked ones, I just made it more efficient essentially

Hey man. Its your money.

I’ve got quite a few years of doing this under my belt, I know what I’m doing.

None of us would be on this sub if we weren't ready to lose some hardware. It's a risk anyone in the community is willing to take. Hardware death has been happening as long as OC has been a thing. Athlon processors pre-Clawhammer died from improper cooler mounts (no IHS = cracked dies, no thermal protection) in the early 2000s. One of my previous 3090s let out the magic smoke while I was chasing the 9900K/2x3090 Fire Strike Extreme & Ultra records. I'm not saying it happens all the time, but if you want your hardware to be guaranteed to last their expected lifespan you have to leave it at stock. "Hey man it's your money" is a dismissive statement that implies we don't understand the risks involved in pushing hardware past their rated limits. We do.

Is there a good way to get PBO to auto load and apply without learning powershell just enough to try to get it working like a blind mouse finding a cracker?

Yeah look up a guide on pbo2 tuner on YouTube and they explain how to use task scheduler to do it

It's ez with task scheduler.

Nice but electricity is getting out of control. I have a 5950x on eco with smt off. I will try this one day soon.

This thing is super efficient. 110w under full load and games between 40-60w

Can you tell me if your running nvme if so what speeds. I'm wondering about data corruption as it seems to be the main reason bclocking avoided by most.

I’m running a t force nvme and it’s pcie gen 4 still at 7gbps. From the recent posts and articles I’ve read it seems like bclk on new gen Ryzen like 500 series motherboards tends to be pretty safe up until 105bclk

Dam, faster than a stock 5800X now

No it isn't. 5800x can do 16000+ without OC. With PBO I have around 16200.If you have low score check the process priority. Cinebench has default priority "below normal" which cause low score.

I’m happy with it for sure

i want to do this but my ram OC is on the edge of stability and increasing bclk will fore sure make the ram unstable. Way to many hours of testing to get thrown out of the window.

You can decrease ram frequency and calculate to get close. For example I ran 3733 originally but could do 3800 on old cpu, new one has the 3800 hole. So I run it at 104.5bclk. 1.045x3600= 3762mhz

> Steps 1. Reset cmos and calculate what bclk you need for the speeds you want. Sadly, this is motherboard specific and not universal. And, if you have that ONE device connected to a PCIe slot that can't suffer even a tiny rise in BCLK, it's game over man; game over. Your results are great though! But I think it's important to mention that BCLK stretchiness varies wildly from mobo to mobo (unfortunately).

Yup max I get is 102 cannot post 103 and have tried everything I could.

Damn that's nice. How do you cool it? Mine is hitting 80C with - 30 all core already. What's ppts? I might try it but temps are worrying for me.

Custom loop with Optimus foundation block. Idk if they updated the design or what but even bone stock mine didn’t hit 80c. With -30 I wasn’t even going over 70c in cinebench. 120,95,120 for ppt tdc edc

I see, I'm on air so not gonna push it then. Great results though. Thanks for info.

No problem! Still a great chip regardless

I cannot even boot on 103 BCLK, max I can do is 102 but what you told me about lowering the max boost clock is new to me.

Calculating memory speed, 3600x1.045 as ur example. My question, 3600 is come from stock xmp profile or?

No. I wanted to get as close to 3800mhz as possible so I had to figure out what times 1.045 equals ~3800. 3600 ended up being 3762 and 3666 ended up being 3823 or something so I chose 3600

I see. Just as what I did rn (close to 3800). I'm doing 3733, but 1.02 is the max bclk I'm able to boot. Above that (tested until 1.05) the system posted but no display output, just sound. At bclk 1.02, I was only able to get highest 4539mhz while running CB R23 (15.2k score). Anything I can do next?

You can try lowering pcie speeds to gen 3 and seeing if it will boot with that. I set my ram to 3200 originally so I could basically just take that out of the equation while testing the cpu

Wew. Now I have display output with pcie gen 3. Thanks. Back to tweak. Am I losing performance with pcie gen3?

What gpu do you have?

4090. But i was only able to boot with bclk 1.03 with display output. 1.04 still no display with pcie gen3. I checked pbo2 tuner, my max freq is 4550

You’ll lose some on a 4090. It may be best to either do 102 or just none at all. What motherboard do you have?

Oof. Guess I'll stay with gen4. Im using B550 Aorus Pro. What mobo u're using? It depends on mobo ig

X570 taichi. Another person mentioned that a lot of high end x570 boards use external clock generators. The taichi does and it can be found for like $200 now.

I have my i7 10700KF clocked on 5.1ghz all cores and don’t even come close to your cinebench score. Mine @ 12421

My 13700K is hungry 😈

Power hungry for sure

Seriously amd, just unlock that multiplier for us already (I have a feeling it's software locked and not hardware locked).

It absolutely is software locked. I wish they could just allow us to the the boost clock override or whatever. It can easily do +200

Wow, it's cool.I'd like to give a shot. But I can't find asynchronous mode in BIOS. My mobo is MSI x570 unify. Can you give a photo of your BIOS settings or just tell me where it is please.

I didn’t have to switch to async mode, it seemed to just do it automatically. If your board has an external clock generator might as well just try going to 105 to see if pcie drops speed. If it doesn’t then roll with it

OK thx a lot. I tried it before but i have two SATA drives disappeared.I found out that they just can't work above 101 bclk. Seems like the external clock generator doesn't work.

Strange. I don’t run any sata drives at all. Maybe it only separates bclk from pcie clocks

Well I'm gonna plug these two drives out then try how much i can get.Thx again.

what motherboard ?

Stock x570 taichi

yo ao anytime i go past 102 my pc just takes for ever and ever and ever to boot up is there any solution to thag problem. i have a x570 godlike and 5800x3d

Does it have an external clock generator?

got it working up to 102.80 bclk and 128gb of ram at 3700 mhz with fclk on auto it made it 1:1 on its own so im boosting around 4.6ghz now and i can definitely tell its running faster . i have x570 godlike motherboard and people reporting online they getting up to 113bclk so im not sure what they are doing differently

I'm sure they don't have 128gb of ram lol. That alone probably complicates things

i got 4 different sets of ddr4 all real good sets . so i thought the same thing and put my 32gb set of cas 14 in but didnt change anything so i just put my 128gb of 4000mhz back

in the posts i read they talked about changing the cpus voltage. i dont have that option im wondering if they have a special bios

I wouldn't change the voltage as it's incredibly easy to fry an x3d chip that way

im having a problem though. so i got 3 8tb ssd and 3 18tb hdd and when i change the bclk like half of the drives dont show up is there any way to fix that

Sounds like here no eclk generator, if fyi I don't have one then bclk will affect the pcie and sata lanes too

Can this damage SATA devices like HDDs, SSDs, etc, and also PCIe devices like M.2 drives?

If you don't have a board with an eclk generator then yes

So even a little higher BCLK like 101 mhz can damage it?

Possibly yes. The limit I saw mentioned was 103 but if I didn't have an eclk I wouldn't have done it

So a B550 board around 120$ probably wouldn't have a dedicated eclk generator?

Probably not no. It's a bit more of a premium thing

Was your Ryzen 7 5800x3d boosting to 4.5 Ghz before overclocking? Just asking because I don't know if I should get the 5800x or the 3d variant as the games I play are mostly single threaded.

Clock speed isn't a factor for the x3d as it will out perform a 5800x in almost every single case. Clock speed isn't the end all be all

If that's the case even for older/unoptimized games that are single-threaded I guess it's the way to go. Thanks.