How To Check PCIe Version of Slot and Motherboard

Primary riser cage connector, connected to processor 1 or the southbridge PCIe 3-slot riser cage* PCIe 2-slot x16 riser cage 1

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

dp96 slot You can use the 16x card in the first 4x slot it's ok, the slot is open at the end Press Enter

slot thailan Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express