Wendel, please explain the madness…
After excitedly buying a new AM4 ( ASUS ROG X570 Crosshair VIII Hero) along with a 4x m.2 16x pci-e expansion card plus a bag of the cute little $15 128GB laptop nvme drives, so i could play raid games (and mebbe even ZFS on Fedora 35) I had my hopes crushed because that particular ( ~ $400 ) motherboard won’t support more than * x2 bifurcation (on a x16 slot), despite having enough lanes to do so. [cue the grumpy cat expression] Grrrrrrrrr.
Upon further research i find that what CPU you are using is also relevant, finally landing on a huge franken-spreadsheet list of what combinations work (to get 4x bifucation) on AM4. This seems like madness to me. Shouldn’t bifurcation simply be lane/bandwith limited? Am i living in a Polyanna bubble? Why must this be?
Sincerely, - your devoted hardware hoarding peon.