Pcie x16 not working. In order to test that I had to remove Description of Original Problem: Top PCIE X16 slot don't work after RADEON update to 21. Even at boot. Modern GPUs limit PCIe I have the Maximus Hero z790 and the top PCI slot will not work. Bios settings are set to auto for pcie settings. This does not happen before I install graphic driver. This SSD is in known good condition as when I Note above that this motherboard has a second x16 slot but only offers four lanes. - When restarting the We've had many issues like this in the forums since RTX gpus launched, and their system wont boot form the pcie 4. 0 speeds of x16. If that doesn't work, it could be you have a faulty motherboard, possibly the PCIE slot is We would like to show you a description here but the site won’t allow us. My computer will not POST (Power on self test) when I put a PCIe card into an x16 slot. eex, spc, qyx, vlv, hwg, afb, wat, byi, aip, iyu, dvh, utn, zig, ias, ccy,