PCIe x1 card won't work in any slot but the x16 slot directly below GPU

PCIe bifurcation with Ryzen APU pcie x1 slot function ok I feel like an absolute MORON! I had NO idea you can install a PCIE X1 card into the x4, x8, x16 PCIE slots on a Motherboard, I thought the slots only pcie x 16 slot The PCIe x16 slots are backward compatible with PCIe x8, PCIe x4, and PCIe x1 cards The PCIe cards are not forward compatible That is, the

pcie2 slot Looking at the PDF manual the board shows 4 slots, a PCIe x16, 2 PCIe x1, and a PCIe x4, but the key to that diagram indicates that the x4