GPU at PCIe x16 @ x1 Speed

Here's the best way I've found and seen of modifying a PCIE x1 slot to fit a full-sized x16 card

List of Motherboards with 3 PCI-Express x1 Slots: MSI PRO Z790-S WiFi, ASRock Z790 PG LIGHTNING, ASRock Z790 PG LightningD4, MSI PRO B660-A DDR4,

pcie 4 m2 in pcie 3 slot List of Motherboards with 3 PCI-Express x1 Slots: MSI PRO Z790-S WiFi, ASRock Z790 PG LIGHTNING, ASRock Z790 PG LightningD4, MSI PRO B660-A DDR4,

pcie 30 x4 slot Then, it's the turn to introduce PCIe slot This slot has 7 versions: x1, x2, x4, x8, x12, x16, and x32, corresponding to 1248