Raspberry Pi 4 Firmware Update

Compared with the previous generation, the newly launched Raspberry Pi 4 has brought many improvements: more powerful CPU and GPU, more significant memory, and support for Gigabit Ethernet and USB 3.0. However, more powerful performance and processing power mean more power consumption, so the Raspberry Pi 4 is the most power-consuming and heat-prone one in this series.

raspberry pi

For this problem, the software has been continuously optimized. The newly released firmware update finally has a breakthrough performance in improving power consumption. This firmware update includes a USB controller, SDRAM, and VLI power management.

According to reports, the Raspberry Pi 4 upgraded to the Raspberry Pi 4 Beta firmware brings many improvements, including finer control of the SoC operating voltage and timing optimization for the HDMI video state machine. The upgrade method is as follows:

First, open a terminal and enter the following command:

sudo apt update

sudo apt full-upgrade

Then, use the following command to restart:

sudo shutdown-r now

The Beta version of the firmware reduces the overall power consumption by reducing the power consumption in the idle state and adjusting the voltage of the SoC without affecting the performance to reduce the power consumption at load. The final result is that the power consumption is reduced to 2.1W when idle and 6.41W when under load, which is the best data. Reduced energy consumption also means reduced heat production and improved heat dissipation. Therefore, the system can "run at full power" without Thermal Throttling.

Thermal image comparison:

thermal imaging comparison chart

Power consumption comparison (the lower the value, the better):

power consumption comparison chart

It can be seen that upgrading to the latest firmware will effectively reduce power consumption and improve heat dissipation.

Finally, you can adjust the orientation of the Raspberry Pi 4 to effectively fan the heat, as shown in the following figure:

raspberry Pi standing upright

The arrangement in the picture is to place the Raspberry Pi 4 with Beta firmware upright, with the GPIO module at the bottom and the power supply and HDMI ports at the top. Since standing upright can improve convection, the surrounding air can absorb heat more quickly. At the same time, the back of the board is lifted from the insulated tabletop, which significantly increases the available cooling surface area, so the heat dissipation effect is naturally better than laying flat.

 

The content and pictures of this article are from the Internet, compiled and edited by ZEUS MINING.


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