I hacked Raspberry Pi firmware for the World Record Overclock!

[@shodivnoname8950]

Still more stable than Intel

[@jnhkx]

lmao😂

[@itsmelukario5969]

Based

[@johnhunt1725]

ZING!

[@Somethingfs-sx1ft]

Haha

[@betag24cn]

and more durable i bet

[@tizilogic]

Correction: RGB does "nothing" for performance.. the only proven cosmetic mod that does something is adding flame stickers

[@fluffsquirrel]

Cpu go vroom with flame decals

[@JeffGeerling]

Ah, my early 2000's modded Mac G4 backs up that theory :D

[@arthuralford]

You're all wrong! A Gamers Nexus case magnet gives you the highest performance. Would Steve lie to you? 😄

[@Pcoakaloid]

You forget "go faster stripes" the clue's in the name

[@ethzero]

​@@PcoakaloidTHANK YOU! It's something to do with the polyvinyl chloride surface and the way the typically red surface reflects away those slower photons.

[@edwardallenthree]

"The only time I successfully delided a CPU was by accident," is the quote of the century.

[@JeffGeerling]

I've also pulled a lot of CPUs out of AM4 sockets by means of the cooler :D

[@edwardallenthree]

@@JeffGeerling Wait. Are you saying that that isn't how it's supposed to work? I can recall several times removing an AM4 CPU cooler, and I can recall never, ever, seeing a CPU in the socket after I've done it.

[@williamkennedy8133]

ZIF/ZRF what’s the difference?

[@edwardallenthree]

@@williamkennedy8133 I see what you did there.

[@JeffGeerling]

@@edwardallenthree Haha

[@spewp]

You must be using RGB incorrectly. Everyone knows it's the key to high performance computing, why else would they sell it to us?

[@JeffGeerling]

❤️💚💙

[@Watchandlearn91]

"You're holding it wrong" lmao

[@vidal9747]

Yes, my local cluster just installed RGB, affordable performance!

[@Sylvan_dB]

Yes, if it is on the RAM DIMMs, fast RAM. On the CPU fan, better cooling. Etc!

[@grunty999]

🤣🤣

[@GamerDudeBYT]

Who needs intel or amd when we have Jeff

[@JeffGeerling]

haha

[@Byc845]

Agreeeee

[@linearburn8838]

@@JeffGeerling I would do a sumersion cooling using novatech 7000 chilled down as low as you can get it you could probably get 3.5 cooling all the board below freezing since its a small board you don't need much fluid

[@duo6873]

And red shirt Jeff 😂

[@cv990a4]

@@JeffGeerling Just imagine what this video would have been like if Red Shirt was in charge... Headline: smoking crater in suburban St Louis office park...

[@MarcoGPUtuber]

Ever since I overclocked my Pi, i can now click on Jeff's videos even faster!

[@alexlandherr]

I’m reminded of that overclocking episode of Futurama where Bender just keeps on increasing his power draw and cooling needs. EDIT: In one episode it seems that he has a “6502” processor.

[@raven4k998]

and then it exploded that tends to happen with extreme overclocks on cpu's push them hard enough and far enough and Boom they blow like any chip pushed to far

[@boam2943]

Congratulations on the record :) For your next attempt, you could try feeding power directly to the pi, if possible. It might be current limited due to the width of the traces from the connectors to the chip. I do not know if the traces are somewhat accessible near the chip, I do not own a RPi5. Also consider downvolting as you increase frequency and/or reduce the GPU power (if possible) to give more power to the CPU part. In a (recent past) GamersNexus video with AMD, they talk about a frequency/voltage/power sweet spot that may require the voltage to be reduced to increase frequency. Overclock to infinity... and beyond :D

[@GSBarlev]

HATs off to you, Jeff! Even if it's not practical, seeing the Pi pushed to its limits gets me incredibly Amped. It's really cool all the options we have for actively dissipating heat these days, and you gotta love that, thanks to the modifiable firmware, no performance goal is too Pi in the sky.

[@JeffGeerling]

'Amped' I see what you did there!

[@boneappletee6416]

​@@JeffGeerling I got caught by the "HATs off to you" 😁

[@_edit146_]

@@JeffGeerlingso on Pi Day, you overclocked it to the number Pi? 😅

[@gergthewerg]

I didnt realize I was talking to the king of puns

[@Xandertank2010]

Hey Jeff! I recently found your channel and your content is great. I have binge a good chunk of your content in the past week. You are a great guy and your passion for raspberry is outstanding lol. Keep it up!

[@NexGen-3D]

Nice work, reminds me of the old days when we were pushing to break that 1ghz barrier with our Slot based Athlon Thunderbird CPU's :)

[@CreateTeen]

So glad you opened with the dry ice sound

[@zambonidriver42]

I’m 30 seconds in, and I already smell a Kernel recompile. Edit: and now, at the end, no mention of a kernel recompile. So disappointed. 😢

[@JeffGeerling]

Teeeechnically I did it off screen for the NUMA patch. So it happened, just not highlighted this time.

[@zambonidriver42]

@@JeffGeerling that’s so dishonest! I can’t believe it!

[@petewright2283]

Congratulations on a WR. 🎉

[@jazzycross1227]

We all love a new Jeff video! Can’t wait to see it!!

[@3v068]

My man, I've always wanted to do supercooling to get my processors past their limits. This is awesome!!!! Thanks Jeff!

[@blueiicey]

"so i pulled out my next trick. [I'm 'bout to reach in my bag]" the houdini refference in the captions is funny lol!! also very good video! i want to try overclocking my pi 2 now, but not to this extent

[@ecu4321]

0:38, thanks for TLDR'ing the point of the video.

[@JustinEmlay]

Childs play! I overclocked mine and it's pulling in 1.21 gigawatts.

[@isohaven758]

LOL!

[@Karavusk]

You can also massively improve stability by just cooling it down even further. Power consumption goes down and they run more efficiently at lower temperatures and as a result you get way more performance without increasing voltage.

[@singletona082]

Pushing the envelope of what's possible and seeing exactly how a thing breaks can tell you a lot about what your'e testing. I wouldn't call it worth it since I am pretty sure the pi foundation does even more insanity to test units, but still fun to showcase pushing the limits.

[@hummel6364]

Seems the suggestion I made last time wasn't needed in the end. For context: On the Pi day video I suggested hardware modding the Raspberry Pi in order to completely bypass the firmware and set the voltage manually.

[@JeffGeerling]

One step further would be to do just that, it seems like the Dialog/Renesas PMIC chip is limited to 1.1V!

[@tomaszkarwik6357]

0:16 papaj detected

[@brawlsmons]

fr

[@casper2501]

Jeszcze jak

[@fauzirahman3285]

All I can think about this crazy overclocking is that quote from Back to the Future 3, "Tarnation, son, who'd ever need to be in such a hurry?"

[@martyburgess341]

I dig the shirt! However I would love to see a "Kernel Panic" shirt as well. I'd definitely buy one of those!

[@JeremyMartens-b7z]

You can also disable all clock monitors and readouts, that way the register where that info is stored is not being read out, no clockcycles wasted and you could get higher scores. And incase that os the register thats leading to the lock ups, it can improve stability

[@scifibob]

You are one of the few, if not the only person that can make me watch a video that explains that I will void my warranty by following it, and still, I watch the whole thing. You are magical.

[@codestantin]

If I shouldn't try this at home, then I'll try this at my school Pi's

[@AnikiTaka]

"And for my last trick" Houdini ?

[@JeffGeerling]

We've created a monster!

[@Ordlnary_Gamer]

⁠Well look what the stork brung.

[@SP-ny1fk]

Can you do an underclock video also? How low can it go? I want a computer that runs into the negative, and provides power for my house.

[@JeffGeerling]

Free energy!

[@jesuslovesyoujohn314-21]

A delidded attempt sounds fun, also maybe cooling the memory chips would help.

[@welchbop]

Congrats on the world record!🙌🙌

[@RWBHere]

Well done, Jeff! 🙂👍

[@ChairmanMeow1]

This is crazy. Imagine going back in time 25 years and showing people this.

[@richardbrown7970]

I love your videos. I always think while watching "Jeff does it so we don't need to!" Thanks.

[@burnte]

I achieved a full 20% overclock on an Athlon 64 using air cooling alone. It was apretty big cooler with plenty of heat pipes and a nice big fan but the fan was pretty quiet. The chip was rock solid. Best OC chip I ever had.

[@jierenzheng7670]

I was wondering if a shunt mod would be an alternative to using modified firmware? My first thought was LN2 extreme overclocking :p

[@JeffGeerling]

That was actually the first route I was going to try... but it's a bit more annoying on the Pi just due to the size and how few people mess with the hardware. A lot easier to damage something that way too.

[@jierenzheng7670]

@@JeffGeerling Yea, with SoCs getting more integrated and smaller, doing stuff like shunt mods and even soldering (for me) has been really hard. Speaking about soldering, sometimes I wish there's this chinese eWaste recycling firm that instead of recycling laptop CPUs and reballing them into desktop PCs, they could reball mobile SoCs like Snapdragons into a Single Board Computer/Compute Module or something instead.

[@joeyghostx]

Of course you would be the first one to crack this Jeff. lol You absolute madlad of a genius.

[@JeffGeerling]

Technically jonatron cracked it, I just prodded him along and then used his code to get a stable overclock and then tested over and over haha

[@joeyghostx]

@@JeffGeerling Well thank you Jonatron then! Thanks for letting me know!

[@timsmith1426]

Nice vid, that was fun.

[@ranjitmandal1612]

Amazing work 👏

[@dylanrules1114]

Jeff love the videos man keep up the good work. Do you think you could use a pi 3 for slight gaming?

[@MrCydoo]

you can reach more, you must overclock the memory voltage with the cpu voltage :) (i'm a word record sub-zero overckocker since 15 years ^^)

[@raspberrypi]

Jeffreeeeeeyyyyy......

[@JeffGeerling]

😎

[@aswincvenu3958]

The reason the CPU gets unstable even at 50 degrees but running high frequencies is due to timing violations. You see, in the CPU, data travels from one register to another, this has to be precisely synced with the clock. There is a very small window of time where data has to be transferred. When you increase the clock this window gets even smaller. Now the logic inside the chip adds to its own delay. Overall, we get a timing violation and meta-stability issues in the logic circuits and viola, your chips gets into a lockup.

[@junkice6930]

0:26 wow who could have guessed, the pi engineers dialed in their product the best ;)

[@JeffGeerling]

Heh there's usually a reason the clocks are picked-though in Intel's case, the reason is usually "how can we get our benchmark one tick higher than the competition" rather than "how can we be somewhat energy efficient?"

[@johnhunt1725]

I very much appreciate you bending over backwards to warn folks not to do this.

[@JeffGeerling]

Yeah, unlike most other 'hacks', this one can and will break Pis if people don't know what they're doing. A lot of people will just go for the moon on the first shot, and risk burning things up. You have to do it slowly, monitoring temps and voltages, and have a quick power shutoff, plus in the most extreme case, a fire extinguisher handy :)

[@LostInThe0zone]

Neat experiments. Honestly, I don't see any application, although I will likely purchase the next faster release.

[@cem_kaya]

Where did you get that silicon wafer ? is it for sale ?

[@JeffGeerling]

There are sellers on eBay with stock of these older wafers; they're often used for educational purposes, they are from the 70s or 80s (old enough you can use a microscope and see the whole layout!).

[@fusseldieb]

AliExpress and eBay sells them left and right, just type in "pcb wafer"

[@michaelluster2694]

If you understand which voltages are which, you could over clock the ram/increase cpu dram voltages to match both. The cpu drams's volts and the ram on the pi's volts could help with a more stable and overall faster overclock. On top of that if you hardware mod and make your own power board, maybe from pcbway. You could in theory replace the power delivery system for the pi with your own board attach an actual psu and push that chip further.

[@spaghetti-ux4dn]

That first overclock was better than my first laptop not that long ago

[@ProDigit80]

You should solder a capacitor over the + and - on the power plug side. A lot of the errors are because of peak power draws causing under voltage. A capacitor will buffer the voltage fluctuation.

[@sajjadhosseini1987]

How he succeeds to WOW the world with each of his videos!

[@MariuszHoscio]

Jeff, you should make a small oil tank fill it with transformer oil. That will significantly reduce temperatures and improve performance. I was using that solution for cryptomining and in most cases it's bit all performance from Web data.

[@schto173]

I recommend you take a big piece of copper or iron , throw it in the freezer and apply that directly to the decided cpu. It's not gonna stay cold for ever but at least 30 minutes so you can run the pi against the wall.

[@vin.k.k]

I saw your profile on Drupal and came here fast.

[@sandmanxo]

It's funny I've never tried overclocking a Raspberry Pi before. I first overclocked in the 486 era and haven't run a chip at stock settings on a desktop setup since 1996. I guess I have a goal now when I'm bored. 😂

[@t1mmy13]

Oh boy way back when I once overclocked using dry ice, I still have the tube (its way too big for a pi), this seems like a fun challenge...

[@WyrdieBeardie]

I really enjoy these videos.

[@tengelgeer]

Nice job! Is that Peltier cooler even cooling the mem?

[@JeffGeerling]

It... wasn't! That might actually help things a little too (or not, it's always weird with overclocking way past the normal limits...)

[@DanielBerzinskas]

The sound at the beginning is funny, lol

[@JeffGeerling]

Honestly I didn't think about how the CO2 in dry ice would make its own little gas layer when it comes into contact with the heat spreader-it would be very inefficient cooling directly because of that!

[@DanielBerzinskas]

@@JeffGeerling Yeah, but I've seen it work

[@alexscarbro796]

Nice video. Are you going to do a video on the Intel failures?

[@JeffGeerling]

No, not quite my wheelhouse, I only cover Intel rarely, and other outlets are covering it much better.

[@QWACHU]

0:16: 2137!, Poland approves! :D

[@benjaminsmith3625]

I'm curious, are you able to rule out that you're not having power delivery issues from some of the onboard voltage regs?

[@mrmotofy]

Wonder what happens if you just set it in a freezer with fan blowing on it and all that. 70deg lower ambient should help

[@anything.with.motors]

My first attempt at over clocking was on an old core 2 duo I ended up burning out the north bridge (back when they wernt integrated into the cpu) An the computer still runs, with a slight 5% oc but it overheats the north bridge under heavy loads an shuts down

[@B9KGF]

I'd love to see your expertise with raspberry pi with an extreme overclocker like Steve from GamersNexus. Great video!

[@Sylvan_dB]

Modern Pi's have a much better onboard power section. Older ones it definitely helped to use a solid 5.25v supply with heavy wires via the GPIO. Not so sure it makes a difference on the current ones. Not extreme, but look at the uptime of this old Pi B running at 1ghz (default is 700mhz, but it does down clock to 700mhz unless loaded). It's using GPIO supplied power. Last line is the uptime: $ cat /proc/cpuinfo ; uptime processor : 0 model name : ARMv6-compatible processor rev 7 (v6l) BogoMIPS : 797.66 Features : half thumb fastmult vfp edsp java tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xb76 CPU revision : 7 Hardware : BCM2835 Revision : 000e Serial : 0000000... Model : Raspberry Pi Model B Rev 2 19:40:21 up 372 days, 5:17, 2 users, load average: 0.00, 0.01, 0.00 It is monitoring temperature and humidity, sunrise and sunset, and controlling a few "smart" devices at a remote location. It sends the environmental data out via ssh to my server while also allowing a tunnel back in. It's been very reliable doing this over 10 years now. The only hardware failure was a power supply. Even the SD card has been solid.

[@AlexanderWeurding]

Raspberry Pi Drag Racing - Vs All Comers! P3, Pi4, Pi5, Nano, BBB, M2, 7995WX and more!

[@Zomboy4313]

4:40, raspberry pi can get over 10w?! Mines basically always under 5w

[@JeffGeerling]

If you push it with CPU + GPU, or if you have USB peripherals plugged in that pull a lot of power, you can get to 15-20W even on a Pi that's not overclocked.

[@Zomboy4313]

@@JeffGeerling That’s fair, I just use a 400 that can barely overclock and has no peripherals (not even the built in keyboard 😮)

[@TheLostF0X]

whats the case at the start? plus the other stuff like the ssd and the fans ect, it looks cool and something i may need

[@tlxyxl8524]

Getting above 1100 on geekbench single core with a PI is wild!

[@Thomas_Meier93]

Is it possible to overclock the RAM

[@cncgeneral]

Is the ram built into the chip? If not, you could swap the modules out for faster ones

[@cem_kaya]

Raspberry pi being unstable at 1.18 volts meanwhile intel running at 1.4-1.5 V seem peculiar. Are these different type of voltage readings ? is intel just build different ?

[@firstlast9500]

“Running”

[@ethzero]

Different architecture, different manufacturing process (node), different use-case, different in pretty much everything.

[@JeffGeerling]

What they said ;)

[@betag24cn]

intelcis suffering a case of panic where the competition using glue is cleaning the floor with them, keep in mind that it was not 1.5, it went over 1.6 volts on intel cpus, in fact, it is going, the microcode update is not here yet and people do not have that information intel is not built different, this is what you do when you decide that 300 watts for just the cpu is fine

[@oliverer3]

Afaik there isn't a published datasheet for the BCM2712 SoC on the Pi 5. However for reference, for similar SoCs with the same ARM A76 CPU cores nominal core voltage is usually 0.75V maximum recommend 1.05V and absolute maximum 1.1V so percentage vise that's a pretty major increase. The ARM cores lower core voltage tolerances compared to x86 CPUs are likely just a side effect of them being designed for low power and high efficiency.

[@ChuckClaunch]

Hey Jeff, long time follower here. I was looking for what the best way to contact you is and couldn't find it so dropping this comment here. I'd love to see you test some of the Raspberry Pi UPS hats out there. I'm super interested in using a Raspberry Pi (be it a zero or all the way up to a 5) as a home power monitoring device of sorts and always been curious how well these small hats work and whether they're worth it vs using a traditional UPS.

[@JeffGeerling]

I do have a few PiSugar HATs, haven't had time to test them yet :(

[@istvanbarta]

Soo, getting ready for a Pie mining rig? :D JK, nice research and experience!

[@MichaelOfRohan]

Isnt that metal on the die more of an rf can? How close is the die to the surface of that metal anyway?

[@henrikoldcorn]

Not close enough! If there’s a big chunk of metal there then there’s a thermal gradient between die and cooler, and that’s wasted potential.

[@JeffGeerling]

RPi calls it a 'heat spreader'-it has some thermal epoxy holding it onto the flipped silicon chip, so it does a good job pulling off heat, but loses a little efficiency compared to direct die.

[@AmyGrrl78]

I wish I could even overclock my Raspberry Pi 5 to 3Ghz. Anything above 2.8Ghz and it won't boot.

[@Praxibetel-Ix]

An alternative way to fry a Pi if it survives the extreme overclocking; dip it in batter, then drop it in a pot or pan of hot oil, cook until golden brown, and serve with ranch. Mmmmmm, crunchy! 😋

[@realalphas]

What is your power monitor for Home Assistant?

[@feo786]

I've noticed this on some of your previous videos too, but there are parts of the video, for just a second or 2, where the framerate drops and it's actually noticeable. Maybe a camera issue? Not sure if anyone else noticed?

[@pablopoo]

Hey!, you took the "fastest Pi" quest to the 💚. 👍

[@Traveler019]

i done this outside home as u recommanded now have dead pi .. need to go to monestry now

[@GIDAEONGULLY]

Perpetual shortage of these things, and this guy is just blowing them up. Play on playboy.

[@JeffGeerling]

The shortage has been over for months-the local Micro Center in St. Louis has more than 25 in stock (and have since April), and rpilocator shows stock at nearly every store they track (and have for a few months as well): rpilocator.com/?cat=PI5

[@davidmeier1004]

I overclock where ever possible and would love to here any experieces on pinephones or pinetab2(s)

[@Lets_Get_Creating]

What thermal camera did you use? I bought the MLX90640 and with a lot of effort got it to work but the resolution and refresh rate a laughable!

[@JeffGeerling]

This is the Infiray P2 Pro, it's a nice little kit!

[@Lets_Get_Creating]

​@JeffGeerling I had a quick look and they're quite cheap for such a high quality. I might buy one and see if I can get it to work with a raspberry pi! Cheers for the quick reply 👍 👌

[@NickyNiclas]

That's fun! I'm curious if it would cold bug if you submerged the whole Pi in LN2 🤔lol 😅

[@JeffGeerling]

I have considered working with someone to make a mini pot for LN2 :D

[@NickyNiclas]

@@JeffGeerling Haha, that would be awesome!

[@pgtmr2713]

​@@JeffGeerlingLN cooled mineral spirits so the pi isn't immediately frozen?

[@kelrune]

Im curious what is the max wattage of the PSU that you are using. would it be possible to run it off a different power supply that can do 30 to 40w. You did mention 20w many times during the testing for from wall.

[@milescarter7803]

Would de-lidding and a copper heat pipe be better?

[@yetzt]

jeff single handedly causing a new pi shortage.

[@ioonerbe]

New shirt needed. "It was Crowdstrike"

[@MidnightMidas]

This is why overclocking is so fun...

[@JeffGeerling]

No risk, no reward!

[@williamkennedy8133]

Curious what would happen with a more heavily optimized kernel and memory cooling. Dry ice and distilled water immersion?

[@robvanscheijndel]

The summer is also overclocked, I should use a peltier too 🙂

[@gabrielnilo6101]

RGB actually makes a difference when you use it to watch out for dust. 😂 Dust accumulates in the front filters and the worst case I had was when it made a difference of 10ºC.

[@JeffGeerling]

Ha, true; though you don't need RGB, just any good light at all ;)

[@gabrielnilo6101]

@@JeffGeerling True, but it's everything comes with RGB nowadays so that's what I am going to use it for 🤷‍♂ hahahaha

[@breadmoth6443]

does using thermal paste with the active cooler help ?

[@TheBackyardChemist]

I think there is a hard voltage limit of 1.1 V due to the PMIC they have used, so even with the hacked rPI FW you will only be getting 1.1 V max. You can SET a higher voltage, but if you check how much the core is actually seeing on the rail it is still 1.1 V. You would need to Epower it to get more voltage.

[@garypinholster1962]

Ahh a challenge I can actually get behind. Maybe I will try this. This sounds like a fun little project. I think delidding and using a custom ln2 pot would be insane bahahaha.

[@goodwinml]

Not sure the best way to get a hold of you. I was wondering if you could use say a Pi5 8GB and make a dedicated server like DayZ? You can make a dedicated game server on just about any old PC so why not on a Pi? Just think 6 or so Dedicated Game Servers running in a rack?

[@Davide0033]

a watercooled Pi is not something i tought i'd ever see