Ok, cool. That's not bad. That said, I'm not entirely sure it's required. I forgot about Z170's extra lanes. Take a look through these.
All we need are a pair of x8 slots plus a couple x4 slots from the chipset. I have an older, smaller version of this one
, and the slot spacing is enough that it ought to work. Either way, it doesn't look like using the chipset to the fullest is a standard feature.
Originally Posted by Wagnelles
What an amazing reply. It's not everyday that I get such a helpful post in a thread. Thank you very much!
Let's start: I forgot to mention, but it's a 2-Way SLI setup. Not 3 or 4. When I said 4 cards I meant both video cards + Asus sound card + Intel SSD. Considering that each video card will take 2 slots, I was concerned about the space. I also didn't realized that I can actually use a 4x card in a standard 16x PCI-E. How dumb of me
I don't mind buying high-end motherboards, as long as everything works fine. I'm long from deciding which motherboard should I get. I was even searching for "5820K vs 6700k" threads the other day. Motherboard will probably be the very last piece of hardware that I'll take the time to choose properly hahah
So, am I OK with a total of 4 PCI-E devices then? Feel free to suggest anything
No, I got what you meant. It's just that a 5820K is almost always enough, and if you really need a 5930K, you're probably spending enough money to skip it and go to a 5960X.
But yeah, your configuration is pretty easy. Lots of options out there, but they're mostly the server/enthusiast platform. I must question why the sound card needs that much bandwidth though. Whatever. It's pretty easy to accommodate. The problem will be price as said before.
Sorry, but I don't know a single thing about PLX. Care to explain? Which benefits would I have for buying a Z170 motherboard with this?
As for PLX switches. Those are devices that are glorified multiplexers. A multiplexer takes an input and, depending on a signal, can choose one of many outputs. For PCIe, this means that two slots can both
be x16 simultaneously. This is useful on Z97 and earlier and, even though it added a ton of lanes to the chipset, Z170 to a lesser extent. Those chipset lanes can only form x4 links still, so you'll need a PLX switch for tri- and quad-SLI.
It doesn't actually increase the bandwidth, and each slot should average out to about an x8 slot, but it is recognized as a PCIe x16 link. Or, going further, an x8 link going through a PLX switch will average out to x4 in each slot, but it will still be recognized as two x8 slots. This is important, and Nvidia will allow SLI across it. You can't magically add bandwidth, but you can pull new lanes from the aether until you run out of addresses for sending packets.Edited by CynicalUnicorn - 1/23/16 at 7:35pm