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Has anyone had good results on overclocking the PiZero? If so what speeds where achieved?

  • I'd be careful w/ this unless you are sure I'm wrong about my conjecture in the first paragraph here; i.e., that the processor on the zero is an "overclocked" processor identical to the A/B/+ models. Sort of like how people have better luck overclocking intel cores of the same model when they use the one that was stamped with the lowest speed. – goldilocks Dec 2 '15 at 21:47
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The Pi Zero uses the same silicon as Pi 1, so they have the same top speed 1GHz. Pi 1 came with a more conservative clock speed but Pi Zero came already maxed out, so it makes no sense to overclock Pi Zero (but on the other way Pi 1 should be able to be cranked to Pi Zero levels.)

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According to a comment on the Pi Foundation's blog post announcing the recent Raspbian update, due to a bug you should not overclock your Pi Zero. It will actually slow it down.

Simon Long says: 2nd Dec 2015 at 1:57 pm

On Pi Zero, you should just leave overclocking set to “None” (which selects the default clock speeds set for the device in the firmware, i.e. 1GHz on the Zero) – all the other options will actually slow your Pi Zero down! This will be corrected in the next release – Pi Zero basically comes out of the box running as fast as it is safe to run it.

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I think you can overclock it but it is actually underclocking if you overclock with the default settings because they are for the Pi 1 which has a slower default clock. If you edit config.txt you may be able to go higher but if you want to be really safe use a heatsink.

  • I've done overclocking with Pi's without using heatsinks and have had no problems with CPU temperature. The SoC on the Pi's are designed so that they do not need active cooling. Of course throwing on a heatsink is relatively pointless unless you have a volume if air moving over it. – Darth Vader Aug 13 '16 at 21:06
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I have overclocked my Pi zero w upto 1.1ghz at 47 degrees celsius without any heatsink or cooling fan. It is possible to overclock without any cooling upto 1.5ghz(i cannot provide the source, it is a portuguese website where people have competitions on overclocking the pi). The highest reached is 1.62ghz with water cooling. Just fiddle with the config file!(you might damage a few sd cards in this process)

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