Will PCIe x1 x4 cards work in x16 slot?

Will PCIe x1 x4 cards work in x16 slot? x1 slot The PCIe x1 slot is the smallest PCI Express slot and has the lowest throughput compared to larger PCIe slots such as the PCIe x16 slot However x16 slot List of Motherboards with 2 PCI-Express x1 Slots: ASRock B760M-H, ASRock H610MAC, ASRock B760M-HDV, ASUS ROG Strix B760-A Gaming WiFi,

x16 slot slot c = slots per phase per pole p = poles n = phases Le = frame length in in , open Tooth width , Carter coefficient , Frame length

x16pciexp slot X1 A akiki X2 li A Every PCIe slot supports its own number of CPU lanes X16 has 16 Lanes support, X8 has 8 Lanes support, X4 has 4 lanes support and x1 has