[jamesy0ung]

You can't really build a PC with parts other than x86. The only other platform you can really build from parts is Arm, with the high end Ampere server chips. Most other platforms are usually pretty highly integrated, you can't just swap parts or work on it.

[sterlind]

What about the POWER9-based Talos II systems? Extraordinary niche, I know, but aren't they PC-ish?

[HeatrayEnjoyer]

Why not? Ram is ram, storage is storage.

[shiroiushi]

You can't just buy an ARM or POWER motherboard from one place, a CPU from another place, some RAM sticks from another place, a power supply, a heatsink/fan, some kind of hard drive (probably NVMe these days), a bunch of cables, and put them all together in your basement/living room and have a working system. With x86, this is pretty normal still. With other architectures, you're going to get a complete, all-in-one system that either 1) has no expandability whatsoever, at least by normal users, or 2) costs more than a house in NYC and requires having technicians from the vendor to fly to your location and stay in a hotel for a day or two to do service work on your system for you because you're not allowed to touch it.

[HeatrayEnjoyer]

But what prevents it from working? I've been building PCs from parts since I was a child.