Overclocking profile for RPi 4

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MichaIng
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Re: Overclocking profile for RPi 4

Post by MichaIng » Tue Sep 10, 2019 12:51 pm

Made some research:
Our medium ARM and high GPU profiles match to what was tested on tom's hardware: https://www.tomshardware.com/reviews/ra ... ,6188.html

There has been some report about 2000/600 with +5 voltage, but it is as well reported that whether this is stable or not (generally which overvoltage is stable with which clocks) depends quite much on the individual chip. So I think our profile is fine and failsafe so far and should work without immense cooling effort. We can always add new profiles or adjust the existing ones based on user feedback.

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MichaIng
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Re: Overclocking profile for RPi 4

Post by MichaIng » Tue Sep 10, 2019 2:06 pm

Profiles added: https://github.com/MichaIng/DietPi/comm ... 334787a564
Code needs some cleanup + warning needs to be adjusted (warranty is not void by any of our profiles!), but RPi4 is in.

aftensleuk
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Re: Overclocking profile for RPi 4

Post by aftensleuk » Tue Sep 10, 2019 7:41 pm

Excellent work @MichaIng !

Looking forward to watch this go live. No more need to edit the config file myself! Thanks a lot!

aftensleuk
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Re: Overclocking profile for RPi 4

Post by aftensleuk » Tue Oct 08, 2019 9:41 am

@MichaIng FYI

I noticed Tom's Hardware has updated their overclocking guide. The maximum overclock is now 2147 Mhz. Not sure if it has any impact on the coming change for .26 version of Dietpi. I haven't tested it myself either.

https://www.tomshardware.com/reviews/ra ... ,6188.html

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MichaIng
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Re: Overclocking profile for RPi 4

Post by MichaIng » Fri Oct 11, 2019 5:44 pm

@aftensleuk
Many thanks for heads up. Jep I as well read that they increased maximum clocks and generally allow wider ranges for some settings with ongoing firmware updates, however our profile will stay for now. The reason is not that other sets would not work as well, but that more than 1900 ARM simply requires a massive active cooling. Everyone should know that some cooling is required, however some full-covered passive cooler or usual size fan should keep idle temps in normal ranges when using our highest profile, IMO. But if power usage (=heat emission) is optimised, we can raise or add additional profiles with higher clocks.

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