I disagree, any board with at least 4 or 5 slots is great for mining still as long as its recent enough to have 4g decoding (iirc its z270 and newer).1) No, you don't have to use it on a mining board, but that's what they're designed for. They will usually work on normal motherboards, but there's no point to using them.
what about x4 card for m.2 NVMe SSD adapater card? how much would we lost if I use the above trick? IN other words, do we really use up 4 lane on NVMe SSD adaptor card?
I disagree, any board with at least 4 or 5 slots is great for mining still as long as its recent enough to have 4g decoding (iirc its z270 and newer).
That will allow the cheap 1 to 4 adapters to be used like this: https://www.amazon.com/gp/product/B07CWPWDF8
A normal motherboard can provide a dozen or more connections this way.
I suppose I did, I was going off the original title that was asking essentially what the risers were used for (mining) which has very low bandwidth requirement.You misunderstand why I call such an adapter useless on normal motherboards. Unless your specific application doesn't mind being crippled in bandwidth, it's pointless to use one of these adapters on a normal motherboard doing normal non-mining tasks. Miners are free to dream up whatever configuration works best for them to squeeze as many cards as possible on a single board.
This seems like an offshoot of the questions you were asking in this thread.
What do you have and what do you want to accomplish? It generally does not matter how many adapters you throw at the problem: At some point any platform becomes I/O saturated. We genuinely want to help, but you do not seem to grasp that we cannot made a wide interface adapt to a narrow pipe without loss. You may not need a wide interface depending on your use case.
and I've never seen a 86 cm long case before, it's like a ship. And that guy has a riser board. So I was wondering for those who build it, due to height limitation of the case, how does the above (#1) link would work if someone were to mount a few riser board on case like this