PCIE 1x, 4x, 8x, 16x bus pins and signals

Can you explain the different versions of PCIe ? pcie slot configuration gen1 gen2 gen3 PCIe slots come in different physical configurations: x1, x4, x8, x16, x32 The number after the x tells you how many lanes (how data travels to pcie slot configuration gen1 gen2 gen3 No idea about power consumption, but I believe the Gen1 Gen2 Gen3 selection are for pcie lane width? fak whatever x1 pcie vs x4 vs x8 v x16

pcie 40 gpu in 30 slot Question For X9DRX+-F, in the BIOS setup under North Bridge -> CPU 1 slot for PCI-E, the options are Gen1, Gen2, and Gen 3