Thx for the reply guys, much appreciated!
@BrightCandle: at full speed I will be needing 41 lanes. But that laneshould be under PCIe 2.0 speed not 3.0. I'm happy to achieve 32 lanes under pcie 2.0 std shared by my cards. My main concern is, for eg., I opt for Asus p8z77 WS motherboard, it says...