overclocking

    i have been using a pi3 with openelec previously and have overclocked it as follows.
    arm_freq 1000
    core_freq 500
    adram_freq 500
    over_voltage 2
    can i coninue to do this with libreelec ?

    Yes, but arm_freq=1000 is an underclock. The default for pi3 is 1200. Perhaps try 1300 if you want to overclock the arm.

    How flexible are the RP's in terms of overclocking. Obvoiusly in the PC world their are components that are literally made to be clocked but is there any evidence to suiggest that overclocking (sensibly) will damage a Pi?

    Quote from nickrob84


    How flexible are the RP's in terms of overclocking. Obvoiusly in the PC world their are components that are literally made to be clocked but is there any evidence to suiggest that overclocking (sensibly) will damage a Pi?

    Overclocking has been widely used since the first Pi four years ago. We've seen no evidence of a Pi ever being damaged.

    Sure, too high an overclock may well crash the Pi, and if that crash occurs at an unlucky time, like writing to the sdcard you could get corruption.
    But nothing that wouldn't be fixed by reflashing the sdcard.

    Ideally back up the sdcard first (e.g. with win32diskimager), or do the tests on a new install that you don't mind reflashing, just in case.
    [hr]

    Quote from ontap


    thanks for that reply ,so when doing this should i leave "force_turbo=0 or changge it to "1" ?

    Up to you. force_turbo=1 may make the install marginally faster, but the Pi will run hotter when idle,
    and it may set the warranty bit (e.g. if used in conjunction with over_voltage).

    Edited once, last by popcornmix (June 10, 2016 at 7:10 PM).

    Quote from nickrob84


    Is there a standard safe oveclock for an RPI3 running LE for general use? Or is it even worth it in the first place? Sorry for hijacking your thead.

    No. It's an overclock. If you want safety then leave it as stock.

    On Pi3 (or even Pi2) an overclock is hardly essential. A Pi1 has a lot more reason for overclocking.
    Some users like to get get every last drop of performance out, but that requires some experimentation.

    This is my complete config.txt on Pi3

    ______________________________________________

    ################################################################################
    # This file is part of OpenELEC - OpenELEC Mediacenter - Home
    # Copyright (C) 2009-2014 Stephan Raue ([email protected])
    # Inspired and partly copied from:
    # youresuchageek: Howto Raspberry Pi : OpenELEC on Raspberry Pi, get a great XBMC experience on your Raspberry Pi
    #
    # OpenELEC is free software: you can redistribute it and/or modify
    # it under the terms of the GNU General Public License as published by
    # the Free Software Foundation, either version 2 of the License, or
    # (at your option) any later version.
    #
    # OpenELEC is distributed in the hope that it will be useful,
    # but WITHOUT ANY WARRANTY; without even the implied warranty of
    # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    # GNU General Public License for more details.
    #
    # You should have received a copy of the GNU General Public License
    # along with OpenELEC. If not, see <Licenses - GNU Project - Free Software Foundation>.
    ################################################################################
    # Bootloader configuration - config.txt
    ################################################################################

    ################################################################################
    # Memory (System/GPU configuration )
    ################################################################################

    # default GPU memory split (do not change if you do not know what you are doing)
    gpu_mem=350

    # SDRAM size based GPU memory split, uncomment and setup to override 'gpu_mem'
    gpu_mem_256=128
    gpu_mem_512=160
    gpu_mem_1024=350

    ################################################################################
    # Overclocking settings
    # WARNING: Do not change/enable if you do not know what you are doing!
    # The System may become unstable or you can have data corruption or
    # you can loose your warranty if you set wrong settings
    #
    # please read: RPiconfig - eLinux.org
    ################################################################################

    # Overclock mode settings.
    #
    # default recommended values are: arm_freq | core_freq | sdram_freq | over_voltage
    # no overclocking : 700 | 250 | 400 | 0
    # mode 'Modest' : 800 | 300 | 400 | 0
    # mode 'Medium' : 900 | 333 | 450 | 2
    # mode 'High' : 950 | 450 | 450 | 6
    # mode 'Turbo' : 1000 | 500 | 600 | 6
    # mode 'Pi2' : 1000 | 500 | 500 | 2

    arm_freq=1300
    core_freq=500
    sdram_freq=500
    over_voltage=4
    over_voltage_sdram=4
    sdram_schmoo=0x02000020
    dtparam=sd_overclock=83

    # set to 'force_turbo=1' to disable dynamic overclocking (you can lose your warranty!)
    force_turbo=0

    # If you have any data corruption using Turbo Mode and overclocking
    # try with this setting uncommented
    # If this still fails, try to use Medium mode without "over_voltage=2"
    # If it ultimately keeps failing, forget about this until it gets fixed
    # Use a more conservative mode that will works fine in any cases:
    # initial_turbo=30

    ################################################################################
    # Overscan settings
    ################################################################################

    # Make display smaller to stop text spilling off the screen
    # see also Raspberry Pi • View topic - EGL windows not respecting overscan
    # overscan_scale=1
    # disable_overscan=1

    # Adapt overscan values to your needs
    # overscan_left=57
    # overscan_right=59
    # overscan_top=20
    # overscan_bottom=20

    ################################################################################
    # various settings see also: RPiconfig - eLinux.org
    ################################################################################

    # Force HDMI even if unplugged or powered off
    # hdmi_force_hotplug=1

    # Doesn't sent initial active source message.
    # Avoids bringing CEC (enabled TV) out of standby and channel switch when
    # rebooting.
    hdmi_ignore_cec_init=1

    ################################################################################
    # License keys to enable GPU hardware decoding for various codecs
    # to obtain keys visit the shop at Raspberry Pi Store
    ################################################################################

    # decode_MPG2=0x00000000
    # decode_WVC1=0x00000000
    # decode_DTS=0x00000000
    # decode_DDP=0x00000000

    ################################################################################
    # End of default configuration
    # all values below this line were inserted from config.txt.bk (your old config)
    # and can be merged with the above values
    ################################################################################
    disable_splash=1

    ____________________________________________________


    Works, but don't know if this is a good config :D

    This is my current config.txt file....

    But i do see a section for overclocking at all, this is what i want my OC to be....

    gpu_mem=400
    arm_freq=1350
    over_voltage=5
    sdram_freq=500
    core_freq=500
    gpu_freq=400

    where do i need to place this in the config.txt?

    Edited once, last by BlockABoots (August 7, 2016 at 5:37 PM).