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Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Tue May 23, 2017 9:03 am
by Hove
There must be something on google for this, but somehow I'm failing to find it so...

Using a 3B, its brown out LED flashes constantly with Jessie Lite on 2.4 LiPo power bank probably due to (I'm guessing) herd of sensors - GPS, external WiFi, IMU + RaspiCam - internal WiFi & BT blacklisted already.

I'd like to try overlocking an underclocked 2B+ V1.2 BCM2837 to 1.2GHz. raspi-config limits overclock to 1GHz.

Is there a sample config out there for further overclocking 2B+ 1.2 directly in /boot/config.txt?

Thanks

Re: Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Tue May 23, 2017 9:12 am
by RaTTuS
yes use the direct method by changing the
arm_freq=1000
core_freq=500
sdram_freq=600
over_voltage=6
values in config.txt ^ change at your own risc
see
http://www.jackenhack.com/raspberry-pi-3-overclocking/
https://www.howtogeek.com/269202/how-an ... ocomputer/
https://github.com/RetroPie/RetroPie-Se ... erclocking

however as you have got power issues these will not work with any type of stability - get a good power supply first then get a very good cooling solution as you will need it

Re: Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Tue May 23, 2017 9:27 am
by Hove
Thanks - it's actually overclocking a B2+ to 1.2GHz I'm after - i.e. the upgraded B2 as of last autumn. What I'm being cautious about are the settings for the other parameters in addition to arm_frequency as I don't know the correlation between these?
arm_freq=1000
core_freq=500
sdram_freq=600
over_voltage=6

Re: Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Tue May 23, 2017 9:38 am
by jamesh

Re: Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Tue May 23, 2017 10:19 am
by Hove
Thx - my 2B+ is now running at 1.2GHz happily.

Re: Overclock RPi 2B+ v1.2 to 1.2GHz?

Posted: Fri Jul 05, 2019 3:17 am
by bluenote
Hove wrote:
Tue May 23, 2017 10:19 am
Thx - my 2B+ is now running at 1.2GHz happily.
Hi could you share your settings?