I hacked Raspberry Pi firmware for the World Record Overclock!

Опубликовано: 13 Февраль 2025
на канале: Jeff Geerling

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WARNING: DO NOT TRY THIS AT HOME!

Code is here: https://github.com/geerlingguy/pi-ove...

If you attempt to replicate this experiment, your warranty will most certainly be void, and there's a good chance you kill your Pi attempting this overclock.

You'll also potentially blow past my Geekbench world record, which would just be too much! :D

Some resources I referenced in this video:

2nd channel:    / @level2jeff
Blog post with more info: https://www.jeffgeerling.com/blog/202...
Video on Pi 5 Silicon:    • Probing Pi 5 silicon with an Electron...
Blog post on the Silicon Lottery: https://www.jeffgeerling.com/blog/202...
NUMA Emulation patch info: https://www.jeffgeerling.com/blog/202...
Jonatron's post: https://jonatron.github.io/randomstuf...
Pi 5 fastest Geekbench scores: https://browser.geekbench.com/v6/cpu/...

And some parts I used for my world record run (some links are affiliate links):

USB Peltier Cooling Module: https://amzn.to/3WmTJ3H
EDATEC Fanless Heatsink Case: https://www.digikey.com/en/products/d... (I used just the bottom plate from this)
Noctua 140mm 5V USB Fan: https://amzn.to/4dmYAbX
Noctua 140mm 3D Printed Fan Holder: https://www.printables.com/model/5119...
Argon PWR GaN 27W Power Supply: https://amzn.to/3Yse5Lt
Extra thermal pads to sink heat from PMIC into the cooler: https://amzn.to/3SxpTs3

Support me on Patreon:   / geerlingguy
Sponsor me on GitHub: https://github.com/sponsors/geerlingguy
Merch: https://www.redshirtjeff.com
Other 2nd Channel:    / @geerlingengineering

Contents:

00:00 - Overclocking is overrated
00:48 - YOU HAVE BEEN WARNED
01:18 - Silicon Lottery
03:03 - Baseline and first WR attempts
03:43 - Higher voltage
04:56 - Peltier Cooling
06:28 - And for my last trick
07:31 - WR achieved, CPU... might survive