Technical question about PCIE 16x pinout : rtechsupport

PCI Express 1x, 4x, 8x, 16x Bus Pinout Diagram @ PDF pcie slot pinout Connector pinout · Each slot has its own REQ# output to, and GNT# input from the motherboard arbiter · Each slot has its own IDSEL line, usually connected to a pcie m2 slot Host Adapters ; PCIe Host Port PCIe x16 Edge Finger ; Internal PCIe Port Two SFF-8654 8x 85ohm 74pin Connectors Connector Pinout ; Switch for enabling REFCLK

pcie slot dimensions Yes, you can Any PCI-e card should work in any socket So an x8 card in a x4 slot will use up