A x1 PCIe card can be detected in pcie x16 slot?

Yes any pcie xanything card will work in a x16 slot, i have a pcie x1 asus xonar stx in a 16x slot right now x4 and x8 cards will also work in

Pcie x1 slot blocked by my gpu, considering using the pcie x16 slot for my wifi card

pcie 4 card in pcie 3 slot PCIe x1 slots are the smallest PCI Express slots with the lowest throughput compared to bigger PCIe slots like the PCIe x16 slots However, PCIe

pcie slot sizes PCI Express Expansion ; Downstream slot port PCIe x16 PCI-E SMT Type Slot Supports PCI Express Gen 4 Bandwidth ; Power connector One SATA 15pin power