Will PCIe x1 x4 cards work in x16 slot?

x16 slot   Dan x16pciexp slot

Besides the PCIe x16 slot, you get two sockets wired to the CPU, one PCIe —with its own, larger heatsink—and one PCIe , as

PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable  In ASUS 「PCIe x16 Slots - 2」

richness factory slot Yes, a x1 card should work in a x16 slot It's good that you've got it to work in a x1 slot What else have you tried it in besides the x16 slot The 16x PCIe slot has been the connection standard for GPUs since the inception of PCIe The signalling standard has been upgraded