In which extent does this overclocking have an impact on the performance of the RPI 2 for Rasplex ?
In other words, in which case the gain can be seen ?
There should be no reason to overclock the RPi2 for RasPlex, it handles the load quite happily.
raspberrypi.org now suggest one level of overclocking for the RPi2, as follows:
arm_freq=1000
core_freq=500
sdram_freq=500
over_voltage=2
Pi gets warm, not hot, so keep in a well ventilated area.
@NedtheNerd said:
raspberrypi.org now suggest one level of overclocking for the RPi2, as follows:arm_freq=1000 core_freq=500 sdram_freq=500 over_voltage=2Pi gets warm, not hot, so keep in a well ventilated area.
Where in raspberrypi.org did you get this info Ned?
It’s now an option in raspi-config in Raspbian, raspberrypi.org recommended OS.
@NedtheNerd said:
Pi gets warm, not hot, so keep in a well ventilated area.
Hi Ned,
Do you use a heat sink? I bought them along with all the other accessories for my first Pi2, but they are a tight fit in the case I purchased and I’m wondering if you think they are needed using your stated overclock settings. Could you also please let me know what case you are using? Thanks!
@binarymango said:
Do you use a heat sink? I bought them along with all the other accessories for my first Pi2, but they are a tight fit in the case I purchased and I’m wondering if you think they are needed using your stated overclock settings. Could you also please let me know what case you are using? Thanks!
I use this case for all my RPi B+ and RPi2’s, I don’t use heat sinks.
Regards
Very helpful thanks! That’s the same case I have, but the opening above the CPU doesn’t align 100% so it makes adding a heatsink difficult. Good to know you’re able to use those overclock settings without needing any additional cooling. Thanks again!
I came across this blog post while looking into RPi2 overclocking. The author appears to have done some in depth testing, which hopefully will help some folks here.
Note that this appears to be tested with Raspbian, not Rasplex.
Hope this helps!
~Spritz
this might be dumb question but do i delete the ‘#’ in the config.txt file to set these values or just change the value?
should they read…
“# arm_freq=1000”
or just
“arm_freq=1000”
@jkblackman said:
this might be dumb question but do i delete the ‘#’ in the config.txt file to set these values or just change the value?should they read…
“# arm_freq=1000”
or just
“arm_freq=1000”
Remove the hash so it just says arm_freq=1000 to set the value, anything prefixed with a hash will be ignored.
Regards
@NedtheNerd said:
There still appears to be no ‘official’ overclock settings from raspberrypi.org for the RPi2, however, a number of people are asking for advice on settings, the following is offered as guidance and in good faith based on my usage.Suggested overclocking settings for the Raspberry Pi Model B 2.
arm_freq=1000
sdram_freq=500
core_freq=500
over_voltage=2
I have been running one of my Rpi2 24/7 with these settings for the past 8 weeks with no issues.
If your RPi2 is in a hot environment you may wish to add the following:
arm_freq_min=400
sdram_freq_min=250
core_freq_min=250
initial_turbo=30 #Does not affect warranty. (Speeds up boot)
The arm_freq setting will add some heat to the board when pushed, however, you can improve performance without overclocking the arm_req as follows:
sdam_freq=500
core_freq=500
over_voltage=2
I have another RPi2 with extreme speed settings (this has only been running for a few days but seems stable) as follows:
arm_freq=1100
sdram_freq=500
core_freq=500
over_voltage=6
temp_limit=80 #Will throttle to default clock speed if temp is hit.
Note: Applying any of these settings are at your own risk, I will not accept responsibility for any damage you may incur!
Regards
Thank you for this. I’ve used your Extreme settings for 3 days and I’ve noticed an improvement in my Pi’s performance with 1080p videos.
~K
arm_freq=1000 core_freq=500 sdram_freq=500 over_voltage=2
Just to add a datapoint (and I realize every pi will have a different OC tolerance) - I started out using an rpi2 for rasplex with the above settings, but would find that it was locked up and required a powercycle when I went to use it every roughly 1-3 days. After 2-3 weeks of that, I eventually commented them out and ran stock and am on 35 days uptime with no problem since then.
@jsharper said:
arm_freq=1000 core_freq=500 sdram_freq=500 over_voltage=2Just to add a datapoint (and I realize every pi will have a different OC tolerance) - I started out using an rpi2 for rasplex with the above settings, but would find that it was locked up and required a powercycle when I went to use it every roughly 1-3 days. After 2-3 weeks of that, I eventually commented them out and ran stock and am on 35 days uptime with no problem since then.
Interesting, I’ve been using Ned’s settings without issue for the better part of a year and very rarely do I ever need to reboot my RPi2. Could it be a heat issue with your enclosure? Does your device get enough airflow? You could try adding “temp_limit=80” (or whatever value you want to test with) as Ned wrote above, while still using these OC settings, and see if that gets you a performance boost along with some stability from the temp threshold?
It is not in a case; is sitting out in the open. Ambient air does get to around 84-85F during the weekday afternoons this time of year.
I was planning to experiment more, including playing with swapping out another rpi2 I have available, but really the performance of the UI is acceptable at stock speeds so I haven’t bothered yet.
Can we get an overclock setting for RPi 3? Just to match actual performance of the device?
I don’t know if any “official” overclock settings have been published for the RPi 3.
You could check out this blog though…
jackenhack.com/raspberry-pi-3-overclocking
Hi I’m a noob here,
Is there a way to set the raspberry pi 3b to change its over clocking settings automatically.
For example when im not using it it goes into a stand by speed.
And after using it goes up to speed for viewing purposes.
Just saying
Also should I use one for a server and another one for viewing?
I like Wi-Fi but the speed is better with a router so I suggest a router that is connected to your system wirelessly while ypur raspberry pi server and player is connected wired.
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