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# 68371 20-Sep-2010 16:17
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With the release of the kernel source code for the VIA WM8505 CPU, there has been a flurry of activity around enabling the ability to overclock these CPUs as they are used in a wide variety of cheap Android tablets.

There is now a testing kernel available for the M001 tablet if you're a developer sort of person. Or you can have a go with Relax v1.9.8 or v1.9.9. Both have versions of the OC testing kernel included. 

I've had a go with v1.9.8 and the kernel seems to work and is stable. If you install SetCPU on the tablet, it definitely scales up and down the CPU clock speeds available according to the performance options you set. 

But what it wasn't doing (so far - Relax v1.9.8) was go faster than the top speed you'd get anyway on a stock kernel.....but at least the existing scaling capability gives us a chance to further extend battery life by "idling" the CPU at low speeds when using it - for example - as an eReader.

What also appears to have come to light is that the stated clock speeds reported by the kernel are wrong due to an 'error' in the VIA source. (Inverted commas for any error that exaggerates performance. It may also simply be a ....dare I say it.....lie.)  

For example, "533MHz" is reported when the device is actually doing 387MHz...and that 387MHz represents a CPU overclocked by 14%. Look here for the details - posts #2 to 4.  

"projectgus" says his latest kernel does deliver a 14% genuine CPU overclock to 387MHz. If I read it right, this should be the kernel in LFD / Relax v1.9.9. 

So have a go! 



 




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  # 382367 20-Sep-2010 17:01
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hmmm very nice, might give this a try tonight

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  # 382369 20-Sep-2010 17:06
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Do you think this might work in my cheap and nasty, unrooted "generic" Flytouch(ish) Tablet ? After it threw a hissy fit the other day I have been having a stab at re-flashing....My first attempt sort of get it up and running again -but only able to unlock start screen if a usb mouse is plugged in (right clicking in notification panel) !

 
 
 
 




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  # 382588 21-Sep-2010 09:35
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TQ13: Do you think this might work in my cheap and nasty, unrooted "generic" Flytouch(ish) Tablet ? After it threw a hissy fit the other day I have been having a stab at re-flashing....My first attempt sort of get it up and running again -but only able to unlock start screen if a usb mouse is plugged in (right clicking in notification panel) !


I think there is a Flytouch forum at Slatedroid. I'd recommend you check there. I have no experience with them and wouldn't want you to experience Epic Fail... :-)




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  # 382660 21-Sep-2010 13:05
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@Linuxluver.

Will do. Cheers :)



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  # 383321 22-Sep-2010 19:39
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Relax v2 with the over clock test kernel appears to be benefitting from the claimed 14% overclock. I really notice it typing, scrolling and web browsing. Time to run some benchmarks.




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  # 383338 22-Sep-2010 20:13
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What do you think this will do to the life of the device though?
Surely it can;t be to great for it, the thing gets pretty hot already?



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  # 383357 22-Sep-2010 21:54
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jbard: What do you think this will do to the life of the device though?
Surely it can;t be to great for it, the thing gets pretty hot already?


Does yours get hot? Mine's barely warm. Surfing. Battery charging. No problem.

A 14% overclock isn't a big life cycle threat.




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