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8 votes
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Raspberry Pi Model B 3 Overclocking?

Yes, it can be overclocked. Here are the details: The Pi bootloader still follows the overclocking parameters that's usually placed in the /boot/config.txt file despite raspi-config not having any ...
Aloha's user avatar
  • 7,156
6 votes

H265 decoding performance on a Pi 3

As Qualcuno pointed out yesterday, the RPi (all models) does not have support for hardware acceleration of H.265 video sources. As such, the RPi just doesn't have the raw horsepower needed to decode ...
Jacobm001's user avatar
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5 votes
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Raspberry Pi Model 3 Overclocking Settings?

Overclock at your own risk: Overclocking is not exactly safe, but it can be done right and the Pi 3 will likely run without any problems if so. Not all Pi's are made equal so some people may be able ...
Kenneth Spear's user avatar
5 votes

H265 decoding performance on a Pi 3

A RPI3 can decode 1080p HEVC quite well. There have been NEON optimizations to HW-accelerate HEVC decoding. Best played with KODI. The problem is a RPI3 is running hot, so it starts throttling, an ...
Janghou's user avatar
  • 1,446
4 votes
Accepted

Raspberry PI 3 Increase Gpu Memory to 944

This is useless as you don't seem to run GPU RAM heavy OpenGL applications. You don't need more than 128MB GPU RAM to run videos smoothly as the hardware decoder will use only a fixed amount. So ...
kwasmich's user avatar
  • 2,702
4 votes

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

As per the documentation on overclocking: When you overclock (i.e. actually change the arm_freq, core_freq, or gpu_freq tags), the dynamic clock setting will automatically be enabled. This means that ...
Patrick Cook's user avatar
  • 6,365
4 votes

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

Your question should be "Which material has a lower thermal resistance: thermal paste, or thermal pads"? The material with the lower thermal resistance will keep the temperature of your components ...
Seamus's user avatar
  • 22.3k
3 votes
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how to cool down raspberry pi

There are two easy solutions: A fan powered by the GPIOs. Just take an old computer fan running at 12 Volts and plug it on the GND and 5V output of the pi. It will run slower than on 12 Volts of ...
Noah Krasser's user avatar
3 votes
Accepted

Raspberry Pi B+ Overclocking

Setting the governor to "performance" should mean the processor runs at the maximum frequency set in config.txt, or the default if there isn't one. Note that this is generally pointless except in ...
goldilocks's user avatar
  • 59.2k
2 votes

Raspberry Pi clock speed won't increase

Overclocking RPi only affects how much arm_freq is used under hight CPU demand. If you want to test your overclock, install sysbench with sudo apt-get install sysbench and then run this command: ...
MadAntrax's user avatar
  • 921
2 votes
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Pi 3 GPU overclocking ability

Yes it is possible to overclock the GPU and yes , this leads to a performance improvement. Look at following resources: Official overclocking overview here example config.txt settings here. Please ...
flakeshake's user avatar
  • 6,213
2 votes

Multiple questions about power and USB hubs

The original A/B models have some problems with the USB ports and power. For starters, they won't deliver much more than 150 mA each, and the USB 2.0 standard is 500 mA. This means certain things ...
goldilocks's user avatar
  • 59.2k
2 votes

Raspberry Pi B+ Overclocking

The B+, Pi2 & Pi3 all have similar power circuitry, which is also more efficient than that in earlier models, but no more reliable. The vast bulk of power issues are due to lousy power supplies ...
Milliways's user avatar
  • 60.4k
2 votes

how to cool down raspberry pi

That temperature is the peak temperature at which Raspberry Pi can operate safely. It is recommended to use a heatsink with a fan that can be plugged into one of the pins in Raspberry Pi, as shown ...
Anshul Bansal's user avatar
2 votes
Accepted

Overlclock raspberry pi some value missing

You can add the core_freq and over_voltage option if they are not present (not all options are included by default). You can read the latest on all of the overclocking options, and the full ...
Steve Robillard's user avatar
2 votes

Setting the maximum clock speed

In /boot/config.txt arm_freq=600 arm_freq sets the maximum speed that the CPU can run at. And the term you are looking for to call this is underclocking.
cs6413110's user avatar
2 votes

Setting the maximum clock speed

easy option is to use cpu-frequtils sudo apt install cpufrequtils With cpufreq-info you will get an info on what frequencies and governors are possible for your cpu. Then set the governor to ...
Red's user avatar
  • 149
2 votes

Setting the maximum clock speed

You can see the current governor at /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor I don't know of any tool to set governor, but cat /sys/devices/system/cpu/cpu0/cpufreq/...
Milliways's user avatar
  • 60.4k
2 votes
Accepted

Are Pi Zeros already overclocked?

You are correct, they are overclocked in the sense that the processors come off the same production line as the ones in other single core models and "binned" according to how they test. However, ...
goldilocks's user avatar
  • 59.2k
2 votes
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Raspberry Pi 3 Overclocking and Warranty

Linked just after the paragraph you quoted, it links to this blog post. In that page, it's stated that: We’ve been doing a lot of work to understand the impact of voltage and temperature on ...
Aurora0001's user avatar
  • 6,328
2 votes
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How do I increase the RPi 3 minimum clock speed without using force_turbo?

The lower frequency arm_freq_min cannot be adjusted above the stock value. https://www.raspberrypi.org/forums/viewtopic.php?t=28310#p250842 https://www.raspberrypi.org/documentation/configuration/...
CoderMike's user avatar
  • 6,997
2 votes
Accepted

Can not overclock RPi 4

Moving the overclock configuration from section [pi4] to section [all] fixed it. Although my RPi seems to not be stable when overclocking over 1600 MHz.
vaid's user avatar
  • 371
2 votes

up GPU proformance on pi 4

Please remove #Ram Overclock sdram_freq=588 sdram_schmoo=0x02000020 over_voltage_sdram_p=6 over_voltage_sdram_i=4 over_voltage_sdram_c=4 This actually SLOWS down the Pi4 A LOT. This was only ...
Tilde88's user avatar
  • 21
2 votes

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

You asked how to fix the overclocking problem. I would say the solution is: don't overclock the Raspberry Pi because you are also get a warning that it may kill your WiFi.
Ingo's user avatar
  • 42.2k
1 vote
Accepted

Wlan0 interface disappears after overclocking sd card

This is WAD (working as designed) on a Pi3. Always read the overlays README (/boot/overlays/README) when you're changing dtoverlays or dtparams. Info for sdhost: N.B. This overlay is designed for ...
Dirk's user avatar
  • 3,541
1 vote

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

I installed Android Things on a Raspberry Pi 3 before and run some simple app, the graphics are laggy. I thought it is due to Raspberry Pi 3 low GPU performance issue but turns out, the same app is ...
Daniel Tang's user avatar
1 vote
Accepted

Overclocking GPU on raspberry pi 2 model B?

On my Raspberry Pi3 with heatsink (and fan when necessary) I increase the gpu frequency to 500. gpu_freq=500 gpu_freq sets core_freq, h264_freq, isp_freq, and v3d_freq https://www.raspberrypi.org/...
CoderMike's user avatar
  • 6,997
1 vote

Powering a 5 volt fan from GPIO

Fan has 3 wires, red and black are for powering it up, yellow is for signal feedback to tell how fast is it going. It could be useful for setting constant speed of fan, but you don't have to connect ...
Mark's user avatar
  • 423
1 vote

how to cool down raspberry pi

Heat sinks designed for the chips work well for keeping the pi from heating up quite as fast.
DabberryPi's user avatar
1 vote

how to cool down raspberry pi

I would suggest a 5v fan connected to 5v and ground, and some good quality heat sinks.
CJ0206's user avatar
  • 33

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