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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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Cube U30GT2 Android 4.4.2 KitKat custom root firmware - test overclocked kernels
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bk79
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2014/03/08 - 23:23
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I've tested 798 gpu, antutu goes scored 21360 with no wifi on, right now I'm testing t15 1800 768 720, but at 1800Mhz  I had a couple of reboots when running antutu, I tried maxing the frequency to 1608 and I had no reboots during the various antutu's tests (scored 20126.. I think the lower voltages won't cope well with 1.8 Ghz frequency, or probably heat sinking is not enough on my tablet and during heavy load thermal increase will decrease stability

 

One question...is it possible to have a t15 at slightly lower frequency that 1.8 Ghz? and a gpu at 798?

 

 

Update: I had a reboot also after maxing at 1.6 at the 4th antutu test...switching back to t14  1800  798 750

 

Update2: Today I opened my tabled to try solving the poor wifi signal and found that most of the cable are poorly set inside the sockets, wifi antenna was shortcircuted (I wonder why...). I fixed everything ( new battery is still on the way), and I enlarged the heat sink on the cpu/gpu/ram using alluminium foils in more layers so to extend the surface to the whold tabled....Now even running with t14 1800 798 750 at full load my tab is barely warm. I wonder if it's worth trying  pushing more the hardware with this solution...

The following users say thank you to bk79 for this useful post:

maikal
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DarthJabba

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2014/03/09 - 22:11
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Interesting stuff! But for now, I am done with producing overclocked kernels ...

Darth Jabba, the Dark Jedi from Nal Hutta

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bk79
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2014/03/09 - 22:13
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what a pity I'm creating some based on your T14 kernel lowering voltage a little, one strange thing I've noticed is that ddr at 800 gives in antutu less than the same kernel with 720

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bk79
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2014/03/09 - 22:27
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Just a question, on t15 I',m unable to find the offset for the ddr do you have any hint on that?


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DarthJabba

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2014/03/10 - 23:56
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It depends - but you could start with offset 0x9ba29c. If you're looking for a principle, search for occurrences of this sequence: 00 00 00 00 fe ff ff ff and the values coming after them. Some will relate to cpu, gpu, etc., and eventually you will find the ddr stuff. In each case, you will find the voltage first, then the frequency (separated by nulls), etc., in a chain, until that chain is finished (usually by the sequence above). The bytes are reversed. You need to know what you're doing - and doing it manually is extremely error-prone. I would not recommend it. If you get one bit wrong, you might end up with a boot loop - or worse.

 

Darth Jabba, the Dark Jedi from Nal Hutta

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aurel.14
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2014/03/19 - 20:43
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Hy and thanks for this partage and files

 

I partage my results :

 

kernel_305kitkat_cpu1800_t14_gpustock_ddrstock                      19966

kernel_305kitkat_cpu1800_t14_gpu798h_ddrstock                       20916

kernel_305kitkat_cpu1800_t14_gpu798h_ddr600                          21670 UNSTABLE - REBOOT

kernel_305kitkat_cpu1800_t14_gpu768h_ddrstock                       20392

kernel_305kitkat_cpu1800_t14_gpu768h_ddr600                          21335

kernel_305kitkat_cpu1800_t14_gpu768h_ddr667                          21468 UNSTABLE - REBOOT

kernel305kitkat_cpu1800_t15_gpu768_t15_ddr720                       22132

 

Where we can find all t15 filles ? i would like test with 7998 gpu

Thanks

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DarthJabba

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2014/03/19 - 21:22
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There are no other T15 files. T15 was abandoned ...

Darth Jabba, the Dark Jedi from Nal Hutta

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nelySLB
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2014/10/06 - 09:17
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I your t14 kernel makes mi tablet orientation wrong

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Mark06

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2014/10/13 - 14:27
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I'd like to see a cpu app that really shows the 1.8 ghz from the cpu while overclocked. Is there a possibility for this?

 

grtz mark1978

 

Nelyslb i had that too with my cube tab

Cube u30gt2 tab

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DarthJabba

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Mark06

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2014/10/17 - 10:16
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It works 1.8 ghz. Antutu score is 25000. Screen doesn't rotate right though,  so had to turn it off.  Can you fix this? 

Cube u30gt2 tab

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Mark06

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2014/10/17 - 10:36
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I installed screen rotation control and set landscape mode. 

Cube u30gt2 tab

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DarthJabba

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2014/10/17 - 14:04
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My Cube died a few months back, when I dropped it, so I can't do any more Cube tweaks.

I hope the control you installed solves your problem.

Darth Jabba, the Dark Jedi from Nal Hutta

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Mark06

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2014/10/17 - 15:42
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Yep it's working great, just a bunch of funny colours within my browser now and then. Keyboard is working all right now, games do fine too.

Cube u30gt2 tab

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Mark06

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2014/10/18 - 09:07
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I used overclock kernel 305 kitkat cpu 1800 t14 gpu798 ddr72

Rom kastycube 20140606

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