What Are PCIe Slots And How Can I Use Them in My PC -

pcie slot x16   Dan pcie 30 x1 slot

PCIe compatibility and performance generates a LOT of confusion In Explaining PCIe Slots

A PCI Express x16 Graphics 150W-ATX add-in card can draw a maximum of 75W through the standard connector, as specified in PCI Express CEM  List of Motherboards with 4 PCI-Express x16 Slots: ASUS Pro WS TRX50-SAGE WIFI, GIGABYTE A620M C, GIGABYTE B650M C V2, ASUS Prime B760M-A AX, GIGABYTE B760M

3 butterflies 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 PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable