Help with X570 Taichi

[dotooori]

Hey guys, 

So im building a custom pc case right now and setting it up to run 3 1080ti's for a rendering machine. Im going to buy a Ryzen 3900 and maybe an x570 board. Also using a nvme m.2 drive. Not sure if that makes a difference. I was looking at the X570 Taichi because it has 3 pcie 4.0 x16 slots. If I put 3 riser cables and set it up will they run at pcie 3.0 x8? Im kind of new to this and if I'm understanding the specs correctly, they'll all run at pcie 3.0 x8 right? 

Also looking at x470 boards and those so its x8/x8/x4. is there a big difference between x4 and x8 for rendering?

 

I thought Ryzen has only 24 pcie lanes. wouldn't I run out of pcie lanes? 

 

[coffeejn]

Cannot answer your question, however be careful with which RAM you use.  I got an issue with 3200nmhz cl14 b-die ram with my x570 master.  Not sure if it's the Kobo or Ram.  I am sending the ram back and ordered Kobo approved to determine.  

Good luck