Support and General Use > Hardware

Overclocking in Rockbox

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soap:
I'm tempted to say:
"If you are knowledgeable enough to properly analyze the cost:benefit analysis of overclocking your DAP, you are smart enough to (follow the easy wiki instructions to) compile your own build, geek enough to find the clock settings in the (well documented) code, and wise enough to know why this is not enabled by default."

bluebrother:

--- Quote from: Mad Cow on March 22, 2007, 05:29:49 PM ---I remember somebody experimented with overclocking the ipod 4G cpu a while ago. I think he got it to nearly 100 mhz per core. ;D

--- End quote ---
Yes. You can use nearly every hardware chip / element out of specs, but nobody, especially the manufacturer, gives you any guarantees about this. Using hardware out of specs is nothing an average or even experienced user should do or be able to. Which means there should never be any option in Rockbox allowing to do so -- it's simply a stupid idea. Unless you are smart enough, have the knowledge of the hardware and know how to do this, of course. Which will be something like 0.00001% of all Rockbox users.
You can even overclock your DAP to be a coffee maker. But it will do this only once and only for a really short time. Most likely not long enough for heating up even one coffee. And when using chips out of specs you can reach this limitation pretty fast ...

Mad Cow:

--- Quote from: bluebrother on March 23, 2007, 03:46:18 AM ---
--- Quote from: Mad Cow on March 22, 2007, 05:29:49 PM ---I remember somebody experimented with overclocking the ipod 4G cpu a while ago. I think he got it to nearly 100 mhz per core. ;D

--- End quote ---
Yes. You can use nearly every hardware chip / element out of specs, but nobody, especially the manufacturer, gives you any guarantees about this. Using hardware out of specs is nothing an average or even experienced user should do or be able to. Which means there should never be any option in Rockbox allowing to do so -- it's simply a stupid idea. Unless you are smart enough, have the knowledge of the hardware and know how to do this, of course. Which will be something like 0.00001% of all Rockbox users.
You can even overclock your DAP to be a coffee maker. But it will do this only once and only for a really short time. Most likely not long enough for heating up even one coffee. And when using chips out of specs you can reach this limitation pretty fast ...

--- End quote ---

Unless of course you put on a little heatsink and fan on it. :D Then you could go a bit further, maybe bump up the voltage. :P

saratoga:
I think the PP chips are rated for around 90-100MHz.  At least they're rated for a bit higher then Rockbox runs them.  However, if you up the speed, battery life will get even worse.

Llorean:
Different PP chips are rated at different levels. The ones Rockbox use are rated for either 80, 100, or "Unknown, but the chip is believed to be similar to the 100", if I recall.

We stop at 75, and there should be no reason to "need" to go higher than this.

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