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I made a new backplane for my consumer NAS

Terramaster F2-221 NAS In a previous post I wrote about how I setup NixOS on my Terramaster F2-221 instead of using the included TOS provided by Terramaster. This in itself was quite simple as the NAS contains Intel J3355, a standard X86_64 CPU.

During this time I did some very extensive research into PCI Express routing and how it works and got a lot of small tidbits from here and there online and there was especially one little information that helped me with identifying the different differential pairs. Not being too eager to solder all these discrete components on my backplane PCB, I decided to find a complete integrated load switch IC with a built-in slow starter and finally went with the onsemi NCP45521-L. Even though the prototype worked perfectly fine, that being the end of the story with all the test points and having it sitting slightly crooked in the case (not to mention GREEN!

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