pi-cluster
Background / Purpose / Getting Started / Cluster Guide
Hardware
The following table show the latest Raspberry Pi computer boards along with some extra information about each of them.
| Board Model | RAM | Cost | Full Specifications |
|---|---|---|---|
| Raspberry Pi 4 Model B | 1 GB / 2 GB / 4 GB | $35 / $45 / $55 | Click Here |
| Raspberry Pi 3 Model B+ | 1 GB | $35 | Click Here |
| Raspberry Pi Zero W | 512 MB | $10 | Click Here |
You can buy any of the Rapsberry Pi boards at canakit.com.
Overclocking
OVERCLOCK AT YOUR OWN RISK !!!!!!
Requirements
- CPU, RAM & USB Heatsinks
- Small Fan (mounted on top of raspberry pi)
Note: Heat sinks and fan “hats” may vary for each Raspberry Pi version.
Known Information
| Status | CPU Speed | GPU Speed | Over Voltage |
|---|---|---|---|
| Default | 1500 MHz | 500 MHz | =0 |
| Max. Overclock | 2147 MHz | 750 MHz | =6 |
over_voltage Limitations
Values above 6 are only allowed when force_turbo is specified: this sets the warranty bit if over_voltage_* is also set. This means that if force_turbo is specified (whether it is 0 or 1) and the over_voltage is set above 6 then the warranty bit is set, thus voiding your Raspberry Pi warranty. For more information, please refer to Overclocking options in config.txt.
How-to Overclock CPU/GPU
- Connect your micro SD card to a PC
- Open file
boot/config.txtinside the micro SD card - Modify the file by adding the following under your corresponding Raspberry Pi version (mine is a Pi 4):
[pi4] over_voltage=6 arm_freq=2000 gpu_freq=600
Truth is, you can start with over_voltage=2 (+0.05 V) then increase it by a step of 1 until the Raspberry Pi boots up properly without exceeding over_voltage=6.
Note: Every over_voltage increase represents a voltage-load increase of over_voltage * 0.025 V. For instance, when over_voltage=3, total voltage load increases by 0.075 V (or 75 mV).