RX 6600 gpu only working on MSI B660Ms Pcie 2 slot (black

Since this statement is referring to the two port model, I am wondering if the single port model will run at full speed in a x4 slot 3

slot version, how to check motherboard PCIe version, how to check PCie version, PCie

slot bonuses To Install a PCIe2 x16 Card Note – See PCIe and PCI Expansion Slots for PCIe slot locations and specifications Power off the workstation using the

eu slot I own Asrock 990 FX Extreme 3 and I'm sure I put graphic card in X16 slot,it's in PCIE2 slot But why is it running in X4 mode,and how to