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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Chromium keeps crashing on my overclocked Pi 4

I am using a Raspberry Pi 4, with 8GB of RAM. I have overclocked my Pi 4, with over_voltage=6, arm_freq=2000, and gpu_freq=750. However, I have been having a problem with running Chromium. Whenever I ...
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2 votes
0 answers
61 views

Overclocking Raspberry Pi after the device has booted

I using a Raspberry-Pi 3B+ device and I am trying to change the maximum frequency after the device has booted. From my understanding, this can be done by editing the files under /sys/devices/system/...
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195 views

Overclocking doesn't take effect on raspberry os 64 bits

I have a rpi4 8gb, running lots of dockers, and im having a heavy use of my CPU and I would like to oc it t 2GHz but I can't, I have set the over voltage and arm_freq but it doesn't work, I check the ...
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0 votes
1 answer
148 views

How to list all RPI frequencies' settings?

I've been playing with overclocking in the last 2 days. I'm helping myself with this list. Yesterday I came across a command which lists all of these parameters and the frequencies which are currently ...
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1 answer
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Setting precise voltage offsets with over_voltage

On the BCM2711, the base VCore was greatly lowered from previous processors, though the over_voltage setting still uses 0.025V increments. On my Pi 4, vcgencmd measure_volts returns 0.8563V when not ...
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939 views

How to get full UART safely on Pi4?

I need to use full UART. I was using dtoverlay=pi3-miniuart-bt to achieve this but the name suggests it's for pi3, I have pi4. Should I use miniuart-bt instead, or disable-bt as I would want to turn ...
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  • 103
-1 votes
2 answers
196 views

WiFi stops working on Raspberry Pi when SD card reader is overclocked

I'm having a very weird problem where if I overclock the SD card reader on my Pi 3B+ using dtoverlay=sdhost,overclock_50=100 the wireless stops working. Raspi-config says 'No wireless interface found'....
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  • 337
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2 answers
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up GPU proformance on pi 4

I have an overclocked pi4 running retro pie. I would like to boost the GPU performance.. Here are my overclock settings: #uncomment to overclock the arm. 700 MHz is the default. over_voltage=6 ...
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1 vote
1 answer
1k views

Will thermal paste help in cooling down the CPU of my Pi 4 even further?

I have the latest Raspberry Pi 4 (8gb edition), I'm using my Pi as a server to host a website, and to host a Discord bot that is being used in more than ~800 servers right now. I overclocked my Pi, ...
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1 answer
225 views

Reason why RPi4 is unstable when oveclocking over 1500 MHz

I'm trying to OC my RPi4 to 2 GHz, but anything above 1.5 GHz seems to make my pi unstable and unusable. This is my config ... [pi4] # Enable DRM VC4 V3D driver on top of the dispmanx display stack ...
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  • 341
2 votes
2 answers
986 views

Can not overclock RPi 4

I'm following this guide: https://www.cnx-software.com/2019/07/26/how-to-overclock-raspberry-pi-4/ And when I run the command vcgencmd get_config int | grep "arm\|over" it tells me that arm_freq=1400....
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  • 341
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1 answer
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How to overclock RPi 3 on Windows 10 ARM

I have an RPi3B running Windows 10 ARM (not scrappy IoT). I used WOA Deployer RPi to burn the image into SD card. I can boot into desktop, but the system is slow & laggy. When I looked up Task ...
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1 answer
640 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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3 votes
3 answers
6k 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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1 vote
1 answer
177 views

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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2 votes
1 answer
5k 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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0 votes
1 answer
267 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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  • 113
-1 votes
1 answer
572 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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  • 179
2 votes
3 answers
7k 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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  • 179
3 votes
2 answers
1k 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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4 votes
1 answer
550 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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1 vote
1 answer
1k 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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  • 53
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1 answer
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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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1 vote
1 answer
923 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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1 vote
1 answer
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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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1 vote
0 answers
143 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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0 votes
4 answers
3k 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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1 vote
0 answers
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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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-1 votes
1 answer
25k 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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1 vote
1 answer
766 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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0 votes
1 answer
4k views

Raspberry Pi B+ Overclocking: Force Turbo not working

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 the governor (...
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0 votes
2 answers
3k 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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1 vote
1 answer
106 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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9 votes
2 answers
29k 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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  • 191
2 votes
1 answer
15k 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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1 vote
2 answers
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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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2 votes
1 answer
4k 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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0 votes
1 answer
189 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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12 votes
6 answers
31k 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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-1 votes
1 answer
176 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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8 votes
1 answer
2k 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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  • 183
2 votes
1 answer
757 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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  • 99
3 votes
1 answer
3k views

Raspberry Pi clock speed won't increase

I overclocked the Raspberry Pi to 900 MHz 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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-2 votes
1 answer
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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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  • 99
2 votes
4 answers
19k views

Overclocking capabilities of pizero

Has anyone had good results on overclocking the PiZero? If so what speeds where achieved?
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1 vote
1 answer
508 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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  • 949
1 vote
1 answer
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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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2 votes
1 answer
356 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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3 votes
0 answers
3k 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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