![]() His previous attempts trying to get GPUs working on the platform meant opening up an extended BAR space for PCI devices wasn’t a problem.įurther attempts involved adding in a 12-card carrier loaded up with 7 more TPUs, 5 more WiFi cards, and 3 more NVME drives. Not everything worked due to driver limitations, but everything enumerated on the bus just fine. Throwing in an NVME SSD drive, several Coral TPUs for machine learning, multiple network cards and a SATA interface caused no problems. In testing the board, filled up almost every slot, trying to see how many cards will run on an Compute Module 4 with 8GB of RAM. The Seaberry can easily be slapped into a mini PC case, and the power button and activity LEDs work just like you’d expect. The Mini ITX design is a particular boon. Two seperate 12V connectors are provided allowing for a redundant power supply setup, which can be made triple redundant with the addition of the right Power-over-Ethernet hardware. Naturally, the Seaberry also features the usual 40-pin GPIO header, the 14-pin CM4 IO header, as well as the usual DSI, CSI and RTC hookups. Ports include a USB 2.0, a Cisco-style serial console port, two HDMI ports, and a Gigabit Ethernet jack. The board then has a M.2 slot in the middle for NVME drives, and x1 PCI-E slot hanging off the side. ![]() There’s also four mini-PCI-E slots along the top, with four M.2 E-key slots hiding underneath. The Seaberry sports a full-sized x16 PCI-E port, with only 1x bandwidth but capable of holding full-sized cards. The Seaberry is one such design, as demonstrated by, giving the CM4 a Mini ITX formfactor and a ton of IO. Then, there’s the latest greatest Compute Module 4, ready to slot on to a carrier board to break out all its IO. There are tiny little Zeros, and of course the mainstream-sized boards. The Raspberry Pi now comes in a wide variety of versions.
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