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Funny layout. I would like to know why the PCI slots a spread out like that.

I know Google don't have a standard rack setup, but still, it would make seens to have all the expantion ports the end of the board... No?

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Maybe these Connectors are for daughterboards with Centaur Chips + RAM. (A Power8 can connect to 8 Centaur Chips where the RAM is connected)

They must be, as there are otherwise no RAM chips on the board...

A layout like this means you can use both sides of the motherboard for I/O slots. So in a 1/2u box, you can get more than one or two expansion cards in place. The PCI slots themselves seem to be hammock connectors, which I was curious about too, and googling doesn't seem to have any info, unless it's too early/late and I'm missing the obvious.

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