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Kernel OC Kernel for the G4 - By Free Radical UPDATE: v1.2 OC kernel

Discussion in 'Development' started by FreeRadical, Apr 17, 2013.

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  1. FreeRadical

    The Kernel Colonel

    UPDATE: v1.2 OC kernel
    • CPU overclocked to 1416 Mhz @ 1200-1300mV (stock limits)
    • Removed lower clock speeds of 252 and 504 mhz to enhance responsiveness and speed up booting. The processor should downclock to 804mhz in sleep mode (even if using performance governor). This should also benefit wireless performance and services while sleeping.
    1080p: http://d-h.st/phL
    720p: http://d-h.st/FI9

    Usage:
    Flash through CWM recovery. if you know how to use Finless' flash tool, you may extract the kernel and flash in bootloader/mask rom mode.

    Note:
    Minix's stated use of the Wolfson WM831x power control IC allows for some oc headroom without significant heating as compared to other TV sticks. I am using my Neo G4 @ 1416 Mhz at these volts (only slightly more than the voltages used to achieve the stock 1.2Ghz clock) for 24x7 usage @ performance mode.

    I have not suffered a single spontaneous reboot, throttling or artifacts. But of course, different processors have different binnings.

    Your Neo G4 may may not be stable at these volts and may require significant overvolting. Please report back if so and I may consider to make a kernel with higher volted kernel for you.

    I have unlocked 1.5 Ghz clock in the 720p kernel (within stock voltage limits of 1300-1350mV). however, it did not work for me (as yet). I am trying to get a stable 1.5-1.6 Ghz oc without significant overvolting but as per my current tests, 1416 Mhz is the sweet spot for the lower binned rk3066 in the Neo G4. you may want to try the 1.5 Ghz clock but it will most likely freeze up your system and you will have to power cycle it.

    The 1080p kernel @1.4Ghz easily achieves an Antutu score of ~7.5k which is equivalent to Minix's 720p kernel at 1.2Ghz.
    The 720p kernel @1.4 Ghz has achieved an Antutu score of ~8.8k on my G4 (may even reach 9k in your system) and is very fluid while playing movies as well as 3D games.
    So if you care about performance, take the risk and make the jump (but of course read the mandatory disclaimer first ;) )

    DISCLAIMER:

    I am not responsible for any loss, monetary or otherwise arising from the information or software posted herein. Proceed at your own risk.
    When in doubt, DO NOT FLASH!
     
    Gh0st, Rip Cord and storm shadow like this.
  2. storm shadow

    Techbliss Owner Admin Ida Pro Expert Developer

    Very nice :)
     
  3. FreeRadical

    The Kernel Colonel

    1.4 Ghz oc successful. I am upping to 1.5 now.
     
    Gh0st likes this.
  4. FreeRadical

    The Kernel Colonel

    UPDATE: v1.2 OC kernel
    • CPU overclocked to 1416 Mhz @ 1200-1300mV (stock limits)
    • Removed lower clock speeds of 252 and 504 mhz to enhance responsiveness and speed up booting. The processor should downclock to 804mhz in sleep mode (even if using performance governor). This should also benefit wireless performance and services while sleeping.
    1080p: http://d-h.st/jwf
    720p: http://d-h.st/KEg

    Usage:
    Flash through CWM recovery. if you know how to use Finless' flash tool, you may extract the kernel and flash in bootloader/mask rom mode.​

    Note:
    Minix's stated use of the Wolfson WM831x power control IC allows for some oc headroom without significant heating as compared to other TV sticks. I am using my Neo G4 @ 1416 Mhz at these volts (only slightly more than the voltages used to achieve the stock 1.2Ghz clock) for 24x7 usage @ performance mode.​

    I have not suffered a single spontaneous reboot, throttling or artifacts. But of course, different processors have different binnings.​

    Your Neo G4 may may not be stable at these volts and may require significant overvolting. Please report back if so and I may consider to make a kernel with higher volted kernel for you.​

    I have unlocked 1.5 Ghz clock in the 720p kernel (within stock voltage limits of 1300-1350mV). however, it did not work for me (as yet). I am trying to get a stable 1.5-1.6 Ghz oc without significant overvolting but as per my current tests, 1416 Mhz is the sweet spot for the lower binned rk3066 in the Neo G4. you may want to try the 1.5 Ghz clock but it will most likely freeze up your system and you will have to power cycle it.​

    The 1080p kernel @1.4Ghz easily achieves an Antutu score of ~7.5k which is equivalent to Minix's 720p kernel at 1.2Ghz.​
    The 720p kernel @1.4 Ghz has achieved an Antutu score of ~8.8k on my G4 (may even reach 9k in your system) and is very fluid while playing movies as well as 3D games.​
    So if you care about performance, take the risk and make the jump (but of course read the mandatory disclaimer first ;) )​

    DISCLAIMER:

    I am not responsible for any loss, monetary or otherwise arising from the information or software posted herein. Proceed at your own risk.
    When in doubt, DO NOT FLASH!
     
    Rip Cord, Gh0st and storm shadow like this.
  5. Gh0st

    Australia's finest since 1981 Admin

    • Gh0st
    • Feb 5, 2013
    • 197
    • 219
    When I get on my PC I will change the thread owner to you so you can edit your release into the main post :D

    Edit: and done ;)
    See you liked your own post... love yourself much :p
     
  6. FreeRadical

    The Kernel Colonel

    hehe. yep. narcissist me

    btw, did try using cm10 by christian troy on my G4 and my kernels worked with it too. Still have to get the wifi and mass storage working on cm10 though.
     
  7. Gh0st

    Australia's finest since 1981 Admin

    • Gh0st
    • Feb 5, 2013
    • 197
    • 219
    :O
    No didnt even know it was around, can you link me up and I'll make a thread :D
     
  8. FreeRadical

    The Kernel Colonel

    The flash image here works on my Minix Neo G4 without Wifi and /sdcard
    http://cm3066.com/downloads.html

    I will try to modify it so that we get a more functional port. And yep, my oc kernels work great with it (overclocked using cyanogen mod settings)
     
    Gh0st likes this.
  9. Gh0st

    Australia's finest since 1981 Admin

    • Gh0st
    • Feb 5, 2013
    • 197
    • 219
    Very nice!!
    I'll have a proper look when I get up.
    Im guessing ethernet wouldnt work on my X5 with it either... Will have a play tomorrow anyway.
    Thanks for the link!!
     
  10. VyvyanBasterd

    Emulator Compiler to the stars

    Nice mod :) I think you should be able to get 1.5GHz+. My UG802 runs fine at 1.6GHz :D
     
  11. Gh0st

    Australia's finest since 1981 Admin

    • Gh0st
    • Feb 5, 2013
    • 197
    • 219
    Been having some problems with it.. It only works on certain ones, mine not being one of them :(
    Maybe have a chat with Bob over at freaktab or 2dark4u, both of those guys have done kernel work FreeRadical :)
     
  12. FreeRadical

    The Kernel Colonel

    I think I have found something to do with the thermal max limit for the cpu frequency controlled by the voltage regulator.
    Perhaps this is why this kernel works for some people and not for others. I tried to contact 2dark before allminipc went down but he doesn't seem to have the time. Bob is new to kernels too afaik.
    I think deadhp @ armtvtech can help.
    Will update when I make some progress.
     
    Gh0st likes this.
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