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So who makes the motherboards for those systems? ASUS, Gigabyte, or companies we never hear about?...
A modern 3+ GPU setup is only (IMO) going to appear in HPC workloads and those are increasingly done in rackmounted datacenters, where systems supporting upto 16GPUs are still in play (along with CPUs that support up to 8 sockets).
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Usual server vendors plus probably more OEMs out there, Gigabyte, Tyan, Supermicro, etc.So who makes the motherboards for those systems? ASUS, Gigabyte, or companies we never hear about?
The short answer is that almost no one actually does want to run four graphics cards, so that's not generally a design consideration. Also, the typical consumer CPU doesn't have enough PCI-E lanes to make use of multiple X16 slots anyway.I'm sure there's a logical, or maybe just lazy reason. Because if one wanted to run 4 video cards on a mobo, it could not be done.
ASUS, Gigabyte, ASRock, Supermicro, Tyan all "directly" manufacture boards for GPU hosts, and Nvidia, Facebook, Microsoft, etc all design boards for it, too. TheSo who makes the motherboards for those systems? ASUS, Gigabyte, or companies we never hear about?
This has a lot to do with GPU cooling. If all of the PCI-E x16 slots have regular spacing, the ONLY way that could be done was to have seven such slots located right against one another. That will severely restrict GPU compatibility to cards with single-slot coolers (or the extreme low-end GPUs). That's not what you want.I'm sure there's a logical, or maybe just lazy reason. Because if one wanted to run 4 video cards on a mobo, it could not be done.
Just in case if you were also asking about such a product, here is a modern board that is suitable:I appreciate all the answers. I learned a lot. Thanks.
That is one beautiful board.Just in case if you were also asking about such a product, here is a modern board that is suitable:
https://www.asrock.com/mb/AMD/TRX40 Creator/index.asp
I'm sure many will agree, notwithstanding the higher cost of entry to AMD Threadripper 3rd gen.