Overclocking wiki page rewritten
suprjami last edited by
What started out as a formatting tidy resulted in me documenting most of what I know about the Raspberry Pi and overclocking it.
@suprjami nice job! Thanks :-)
cyperghost last edited by
@suprjami Nice one!
Brunnis last edited by Brunnis
@suprjami Awesome job! This is a great reference. I have found two issues, though:
You mention several times that force_turbo = 1 voids the warranty. However, the formula for voiding the warranty is:
(force_turbo || current_limit_override || temp_limit>85) && over_voltage>0
See https://www.raspberrypi.org/forums/viewtopic.php?p=176865#p176865 It's an old post, but I haven't seen anything that suggests this was changed.
The second issue I found is that according to https://www.raspberrypi.org/documentation/configuration/config-txt.md the gpu_freq setting actually sets core_freq and all other GPU related frequencies to the same value. The wiki page makes it seem as if core_freq and gpu_freq are unrelated. Or maybe that page on raspberrypi.org is outdated? Could be, since all overclocking related info in it seems to be RPi 1 related.
suprjami last edited by suprjami
@Brunnis hey thanks for the references! i've been meaning to test those, but have had some other stuff going on and haven't been near the computer much
i also find a lot of overclocking info for the Pi is either outdated or conflicting or just wrong. like the Pi 3 and Zero come with core and GPU at different speeds, so maybe one doesn't set the other there? i haven't tried yet
as i understand it, if the two core and gpu are set to different things, an unexpected frequency may result which can be calculated with: https://github.com/superjamie/snippets/blob/master/pioc.py
i figured it was best to err on the side of caution and explicitly set both. tbh i don't think there are super-huge gains to be had by clocking them differently, at least not for N64/Dreamcast/PSP purposes
i will test more and update the wiki page when i get back into it
Shakz last edited by Shakz
Excellent work....very very thorough. Love it!