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willis936today at 10:18 AM1 replyview on HN

I mostly see dollar signs. It's a very dense board and every square inch has a ton of high speed I/O. I imagine there are thousands of buried vias. Economies of scale help and the things being installed also cost a lot, but I'm still curious how much of their BOM cost is board fab.


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formerly_proventoday at 10:34 AM

These things have started to look a lot like big iron CPUs from the late 90s with unusually thicc PCBs, being crammed full of (then cache) memory chips around a huge chip or two in the center, periphery lined with odd high-speed connectors and power delivery etc