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Upgrade your Raspberry Pi to turbo mode

bluescreen

Hi Everyone.

 

We're pleased to let you know that a new distro of Wheezy is available which boosts performance from your Raspberry Pi. Some of you might have already taken advantage of overclocking, and this update incorporates some of the collective experiences users have had since the Raspberry Pi first launched. element14's Drew Fustini posted a great blog entry which explains how to update your unit right from apt-get instead of having to reflash your SD card with the new download. Our friends at the Raspberry Pi Foundation report that the new update can boost performance by around 50%. The new update also includes:

 

  • Better support for wifi
  • Better audio quality
  • New pre-installed software like SmartSim and PenguinsPuzzle

 

Did we mention the update is totally free? image

 

Drew's post explains in detail how to update to the new version. Check it out + let us know what you think of it! I'm off to update my R Pi now...

 

Sagar

Parents

  • What is wrong here?

    image

    Overvolting is said to VOID WARRENTY! 

     

    Also, How can you overvolt by 2 volts?

     

    Or 6 volts with a 5 volt power supply?

     

    HELP BEFORE I KILL RPi!!!

     

    We’ve been doing a lot of work to understand the impact of voltage and temperature on lifetime, and are now able to offer a “turbo mode”, which dynamically enables overclock and overvolt under the control of a cpufreq driver, without affecting your warranty.

Reply

  • What is wrong here?

    image

    Overvolting is said to VOID WARRENTY! 

     

    Also, How can you overvolt by 2 volts?

     

    Or 6 volts with a 5 volt power supply?

     

    HELP BEFORE I KILL RPi!!!

     

    We’ve been doing a lot of work to understand the impact of voltage and temperature on lifetime, and are now able to offer a “turbo mode”, which dynamically enables overclock and overvolt under the control of a cpufreq driver, without affecting your warranty.

Children
  • in reply to wallarug

    I saw some post somewhere that said these numbers do not correspond to volts, but to some other 'level', i.e. it is some additional fraction of a volt if you select level 6. Bad screen I know! It should either be fully technical and specify the voltage correctly, or be non-technical and just say high (may affect some programs but won't affect warranty) / Low (normal setting, always works)

    -or something similar.

     

    (I've not tried this, I still need to download the latest release).

  • in reply to shabaz

    All good.  I have it running on the Fastest setting but I am looking forward to someone letting me know if you can do the same thing with RAM?

  • in reply to wallarug

    Overclock the RAM?  I think this new dynamic overclocking will do that for CPU, GPU and RAM.  I found I had to run something "intense" to actually see the CPU throttle up.  Quake did the trick with 1024x768 resolution.  I ran in "Turbo" mode with no problems.

  • in reply to fustini

    No settings are in config.txt when Turbo mode is on to enable RAM overclocking/overvolting?

  • in reply to wallarug

    With Turbo mode set via raspi-config, I have these settings in config.txt:

    arm_freq=1000

    core_freq=500

    sdram_freq=500

    over_voltage=6

    So I believe it will overclock the SDRAM.  However, I'm not sure if it will overvolt the SDRAM.  The wiki shows that over_voltage is just "ARM/GPU core voltage adjust."  There's seems to be seperate settings for SDRAM overvolt:

     

    over_voltage_sdramSets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p together
    over_voltage_sdram_cSDRAM controller voltage adjust. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. Default 0 (1.2V) [5]
    over_voltage_sdram_iSDRAM I/O voltage adjust. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. Default 0 (1.2V)[5]
    over_voltage_sdram_pSDRAM phy voltage adjust. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. Default 0 (1.2V)[5]
  • in reply to fustini

    That's what I am saying.  Mine also has the same settings as your config.txt - none for sram overvolting/clocking. 

     

    Anyone know if it is safe to overvolt Ram without melting the little 'blob' in the ARM processor?

  • in reply to wallarug

    As far as I can tell, the new "overclocking" is done by a module in the kernel. This allows the module to monitor the temperature of the chip and switch back when the chip gets too hot. Overclocking and overvolting a chip is actually OK (within limits) as long as the chip doesn't overheat. So when the kernel module keeps a tab on the temperature there is not much that can go wrong.

     

    On the other hand, if you use the old firmware and set "overvolt=6", you're not using the module that uses the live temperature monitoring to keep the temperature in check and the chip might overheat. This mode was said to trigger the "no warranty, you blew up your chip yourself" fuse.

     

    In fact modern desktop PCs work in a very similar way. The hardware allows for dynamically changing the voltage and speed of the processor.