Graphics card for Raspberry Pi CM4. The power is not overwhelming, but you can browse the Internet

The Raspberry Pi Compute Module series of systems is equipment designed directly for more professional applications compared to the Raspberry Pi, which boils down to differences, especially in the connectors. Today some @Toble_Miner proved that you can play with such a mini-computer in many ways, and a fully functional graphics card on the Raspberry Pi CM4 is a great example of this.

Can a third-party graphics card for Raspberry Pi CM4 work?

Let’s start with the fact that the Raspberry Pi Compute Module 4 has a built-in GPU, so all the fun is treated more like an experiment than trying to increase Rasp’s graphical performance. Mentioned Toble_Miner it has done so with a mini-PCIe graphics card from Delock based on the SM750 chipset from Silicon Motion.

This graphical layout was designed primarily to provide the ability to play 2D and video graphics for embedded devices, or even servers, evidently with a console rather than a graphical environment in mind. It has only four cores working with a frequency of 300 MHz and using 100 MB of borrowed memory, and allows displaying the image on two analog VGA connectors, as well as digital interfaces directly to LCD panels.

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After connecting the card to the Raspberry Pi CM4, the card normally refuses to obey, so Toble_Miner had to interfere with the driver in the latest Raspberry Pi OS Bullseye OS release. He did it successfully and with appropriate changes, he managed to run the system on this graphics card attached to Raspa. As Tom’s Hardware suggests, the experimental card is not the only one that works after these changes are made.