Questions tagged [overclocking]

Overclocking is a method of trying to operate a processor faster than the manufacturer-specified clock frequency. Use this tag for questions about how to overclock the Raspberry Pi.

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35 views

How to increase sampling rate on MCP3008 in python

I am trying to push the MCP3008 to its limits and sample as many samples as possible from a single channel per second. I am also not trying to have to write any C or assembly code, and keep it all as ...
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1answer
46 views

Setting the maximum clock speed

I found a lot of search results for overclocking the Raspberry Pi. In my case, I want the opposite: I need the Raspberry to run at a constant, more predictable speed, even if it's a "slow" frequency ...
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1answer
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Are Pi Zeros already overclocked?

According to answers below this question, every Pi Zero is already "maxed out", but from my understanding this doesn't make sense. Silicon chips are manufactured with some variability in quality, and ...
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1answer
416 views

What happens if I force_turbo (and over_voltage) but do not increase ARM, etc

I have had issues with running RPI cam control and pikrell cam on Pi Zero W and found a post where it was recommended to use: over_voltage=4 force_turbo=1 (https://www.raspberrypi.org/forums/...
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How do I increase the RPi 3 minimum clock speed without using force_turbo?

So I don't want to change my max clock speed, but I want to slightly increase the minimum clock speed at light load from 600MHz to 800MHz. However, if I set these options in my /boot/config.txt/ and ...
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What's a decent overclock for RasperryPi 3B+ with added heatsink at these temps?

So I've been bench-marking my 3B+ with sysbench and i've been thinking of adding an overclock, but i don't want to over do it, what is a decent overclock with these temps (47.2'C is average idle temp) ...
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1answer
161 views

Wlan0 interface disappears after overclocking sd card

When I add dtoverlay=sdhost,overclock_50=80 to the /boot/config.txt and reboot my PI3 the wlan0 network interface disappears. When I roll back the change wlan0 comes back as well. I apply this change ...
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1answer
243 views

Cannot overclock --> black screen

When I try to overclock my Raspberry Pi 3B by editing the boot/config.txt file and restart, I always end up with a black screen. It will go past the "Welcome to Raspberry Pi Desktop" screen but after ...
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2answers
3k views

Raspberry Pi stuck on Welcome screen after rebooting

I was running a stress test (stress -c 4) and measuring the temperature and cpu clock frequency. I also edited the config.txt to overclock my Raspberry Pi 3B. I entered sudo reboot into the terminal ...
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2answers
717 views

Raspberry Pi 3 Overclocking and Warranty

I found the following at https://www.raspberrypi.org/documentation/configuration/config-txt/overclocking.md: The specific circumstances where the overclock bit is set are if force_turbo is set to 1 ...
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1answer
454 views

Raspberry Pi 3 on Android Things OS for 40 inch display (Graphics Issue)

I am working on a project where I need to run videos on a 38"-40" inch LED TV. Mp4 (720p) videos don't run as seamlessly as needed. It is not the worst in the world but I can see that it is missing ...
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1answer
445 views

How to overclock Raspberry Pi 3 running Android Things?

I know Raspberry Pi 3 can be overclocked on the Raspbian OS by tweaking the config.txt file. But is there a way to overclock Raspberry Pi 3 running the Android Things?
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1answer
911 views

Overclocking GPU on raspberry pi 2 model B?

I'm trying to overclock the GPU on my raspberry pi 2, but I can't seem to find out how. Also, there's no setting for it in config.txt? Does anyone know where I might be able to find this setting (...
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1answer
462 views

Powering a 5 volt fan from GPIO

I found a 5 volt fan from an Acer laptop, and want to fit it to my Pi (sunon maglev fan GC055515VH-A). It has three wires - red, black, and yellow - why is that?! The unit does not state its ...
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1answer
59 views

Overlclock raspberry pi some value missing

I would increase the raspberry performance, I found this tutorial, that hint to add in config.txt: arm_freq=1350 core_freq=500 over_voltage=4 disable_splash=1 #force_turbo=1 #Voids Warranty! (...
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0answers
74 views

Diagnosing Pi slowness?

How do you diagnose slow computing time issues on the Pi? I have Ubuntu 16.04 installed on a Raspberry Pi 3. All Ubuntu package updates are installed, and I've installed the most recent Pi firmware. ...
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4answers
2k views

how to cool down raspberry pi

I've got a Raspberry Pi 3 running 24h/24h at 100%: it is costantly at 70°C.. I'd like to know if there are simple and cheap solutions to cool it down.
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0answers
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What do following options mean in /boot/config.txt?

I have gone through many overclocking tutorials on the web. I have seen fewparticular lines in config.txt, sdram_schmoo=0x02000020 isp_freq=0 avoid_pwm_pll=1 avoid_safe_mode=1 Can anyone please tell ...
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1answer
19k views

Raspberry PI 3 Increase Gpu Memory to 944 [closed]

I use Raspberry PI 3 and wnat to get more GPU memory to work. I overclock my PI to get more performance because I use it for home Apache/PHP/MySQL server, Access Point and somethimes play music and ...
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1answer
371 views

Overclocking - CPU Frequency Measurement Accuracy: vcgencmd vs cpuinfo_cur_freq

As a follow-up to this question: Raspberry Pi B+ Overclocking: Force Turbo not working I had trouble getting force turbo to work. I was using the command: sudo vcgencmd measure_clock arm to get the ...
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1answer
2k views

Raspberry Pi B+ Overclocking: Force Turbo not working [Solved: Undervoltage Problem]

Good day, I am overclocking my raspberry pi. I have selected the turbo option from the raspi-config. I have found out however that the Pi was not running consistently at 1GHz. I have tried setting ...
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2answers
2k views

Raspberry Pi B+ Overclocking

Good day, May I ask if it is true that if I activate turbo on the raspi-config, the pi doesn't always run at the maximum speed at 1Ghz. Is it safe to set force turbo = 1 at the config.txt to force ...
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1answer
92 views

Device-specific overclock settings?

I have a microSD card, loaded with shairplay-sync and Cirrus Logic Audio Card driver that is shared among two Pi's, one Model B rev 1.2 (I have one of those short format adapter modules that takes a ...
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2answers
23k views

H265 decoding performance on a Pi 3

Though there seems to be little information available, I've seen several posts of people successfully decoding H265 video on the Pi 3 either with, or without overclocking. I'm running a Raspberry Pi ...
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1answer
13k views

Pi 3 GPU overclocking ability

As far as I am aware the Pi 3's CPU is currently not overclockable, its maximum clock speed is set at 1.2GHz. But what about overclocking the GPU? Is it even possible? And would I see performance ...
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2answers
167 views

Multiple questions about power and USB hubs

I am planning to use my RPi as a basic desktop. I have a few questions I am using the first model of the RPi I am planning to connect a keyboard, a mouse, a bluetooth adapter, a WiFi adapter, and ...
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1answer
3k views

Raspberry Pi Model 3 Overclocking Settings?

I have procured a Raspberry Pi Model 3 few days ago and planning to (safely!) overclock it. I want to get maximum from my little Pi 3 and looking for the instructions for the safe overclocking. I am ...
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1answer
159 views

Why are there only 2 overclock options when there's supposed to be 5?

When I check the overclock options on my RBPi 2 Model B V1.1 (BCM2709, revision a01041) with Raspbian installed through NOOBS, I only see 2 overclock options. I thought there would be around 5 options ...
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6answers
29k views

Raspberry Pi Model B 3 Overclocking?

With the release of the Raspberry Pi Model B 3 today, I'm sure we're all very excited to see the speed of this new Pi. The standard clock is 1.2Ghz, but I'd like to push mine further. I know the Pi 3 ...
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1answer
158 views

Raspbian Wheezy config.txt overclocking

I looked on the Raspberry Pi documentation here and I was trying to overclock my Raspberry Pi 2. But on the documentation page, I found options like force-turbo and other options that I didn't find in ...
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1answer
1k views

Overclocked pi too much

Out of curiosity, I overclocked my pi to turbo. However, now when I start the pi, it freezes at the splash screen and refuses to boot. I am using the RetroPie OS. Is there anything that I can do in ...
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1answer
728 views

Raspberry Pi 2 overclocking settings

I have been reading about Raspberry Pi overclocking recently. However, I still have some questions. On one of the sites, it stated that the frequency of the GPU " It has an impact on ARM performance ...
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1answer
2k views

Raspberry Pi clock speed won't increase

I overclocked the raspberry pi to 900mhz with raspi-config, however, when I use "cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" to check the speed, I get 600,000 (600 Mhz). This is causing ...
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1answer
2k views

Raspberry Pi 24/7, does it need cooling?

I made a Minecraft server with a Pi 2. I overclocked it with raspi-config to something like "Medium". I intend to keep it running 24/7 without a case. Do I need a heat sink and a fan in this situation?...
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4answers
15k views

Overclocking capabilities of pizero

Has anyone had good results on overclocking the PiZero? If so what speeds where achieved?
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1answer
466 views

Is cooling needed to be able to overclock the Pi further?

I've only managed to overclock my Pi to 1.3 GHz, but this guy here http://www.overclock.net/t/1404207/extreme-cooled-raspberry-pi got it up to 2.4GHz. Is it the cooling that makes it possible to get ...
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1answer
576 views

Raspberry Pi 1.2 GHz kernel panic

When I overclock my Raspberry Pi B+ to 1200 MHz, it spits out a nasty kernel panic, even though it is overvolted and cooled sufficiently. However, on my Raspberry Pi Model B, I have gone past 1.3 GHz. ...
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1answer
288 views

On-the-fly CPU overclocking

I was wondering if it would be possible to control the Raspberry Pi's CPU frequency on-the-fly, allowing me to adjust for temperature. (I would be using this for overclocking.)
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0answers
2k views

Boot config.txt is ignored

Problem The /boot/config.txt file is being ignored when the Raspberry Pi boots up. As such, overscan and overclocking settings are not taking effect. What I've tried Some reported that the line ...
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1answer
4k views

Monitor CPU voltage and overclock

Is there a way to monitor the current CPU core voltage and overclock, similarly to CPU-Z but for the raspberry pi? This is so I can check that nothing is limiting the overvolt or overclock.
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2answers
845 views

Best method to test if the Pi is stable after overclocking

What is the best method to test if a Pi is stable after overclocking? Primarily the CPU, but also RAM, GPU etc.
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1answer
209 views

Turbo doesn't kick in

I read this topic here: Why won't my Raspberry Pi overclock? but it seems a bit old to me and this line here echo 60 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold doesn't work ...
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2answers
289 views

Effects of overclocking

I would like to run Xfce, or any other GUI, as my desktop environment, but my RPi isn't powerful enough. I was wondering what damage overclocking will do to my board. I am considering it, but I don't ...
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1answer
1k views

Would overclocking a raspberry pi to “Medium” be dangerous to the Pi?

I am new to overclocking and just bought a Raspberry Pi to learn more about computers and run a Java server on. I was wondering: Would overclocking my Raspberry Pi to the "Medium" setting be dangerous?...
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1answer
146 views

Question about overclocking the Raspberry Pi

What are the downsides to overclocking (even on moderate mode) on my Pi other than it has the chance of becoming unstable? Also, if it does get unstable, is there a way to remove it from overclock ...
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2answers
2k views

Is there any use to water cool a raspberry pi? [duplicate]

Is there any use to water cool a Raspberry Pi? In other words, it is possible to overclock the RPi enough to have to water cool it? Or will there always be enough with just the heatsinks, or with ...
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2answers
489 views

Do I overclock my RPi without voiding my warranty using RASpi-Config? [duplicate]

I want to overclock my Pi to improve performance, while still not sacrificing the warranty. Yes they're cheap, but I still want to preserve the warranty. I have seen blog posts on RPi's website about ...
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2answers
5k views

How do I find out if my Pi's warranty is voided?

How do I find out if my Pi's warranty is voided? I overclocked my Pi, but I didn't use the force_turbo setting.
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2answers
7k views

Overclocking via command line

I'm setting up a Puppet instance that will manage a bunch of RPis. This means I cannot overclock them one by one using raspi-config. Overclocking should be as simple as creating /boot/config.txt: ...
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2answers
7k views

How to overclock the Raspberry Pi with Kali Linux?

I've just installed Kali Linux on my SD card that I use with Raspberry. This new OS I think is very good, but at the installation I don't have the opportunity to overclock as it is possible with ...