On my newly built computer, I was having problems with no display when I first turned it on. I tried booting without my graphics card in, and it started up fine. I went to BIOS and settings seemed normal for a PCIe card to automatically start. I put the graphics card back in, powered on, and there was display so I assumed my graphics card was working. I installed Windows, etc., but when I went to install drivers for my graphics card it was undetected.
I'm worried that I might have a bad PCIe slot. I've tried reseating it twice, it's definitely connected to my PSU (the GPU fans are working), and I'm not sure what other setting to change in BIOS. Any suggestions are appreciated, thanks!