My Graphics card will not fit in my motherboards PCIe slot

A motherboard with two 32-bit PCI slots and two sizes of PCI Express slots Physical dimensions edit PCI brackets heights: Standard: mm;; Low

PCIe Slot half size full size Connectors: 1 x 59 pin key A+E male > 1 Dimensions without PCIe connector: ca 90 x 24 x 5 mm Item

pcie 4 card in pcie 3 slot PCIe Slots ; Slot 3 CPU 1 PCIe x16 x8 ; Slot 4 CPU 2 PCIe x16 x16

pcie 4 slot PCIe slots come in different sizes, denoted by their lane count The numbers x4, x8, and x16