A x1 PCIe card can be detected in pcie x16 slot?

Here I explain how to check PCIe version of motherboard and PCie slot you have Read in

Next Generation Storage：1*PCIe x4 and 3*PCIe x4 Connectors EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design

candy pop 2 slot It should work just fine The port should automatically drop down to x4 You may need to get a smaller plate though

candy blasted! slot Depends on the case and where your PSU is if putting the GPU in the bottom PCIE slot it might reduce airflow to the GPU with it being to close