PCIe x1 x4 cards in x16 slot

But i didnt unterstand if a PCIe ×8 gpu can be slowed down if its in an PCIe slot Can

Phone x 1 USB Data Cable x 1 Charger x 1 SIM Ejector Tool x 1 Protective Case x1 User manual x1 Warranty card x1 Country of Origin India Additional

x1 slot PCIe cards can always operate in PCIe slots with the same or more lanes than the card For example, an x8 card can operate in a slot with x8, x16, or x32 lanes

x16pciexp slot Convert PCIe x1 slot to open ended Is there a safe way to cut the closed edge? Unfortunately, most manufacturers currently produce only