DisplayPort to HDMI Adapter, DP Display Port to HDMI Converter

RTX 4090 sometimes gives no video via DisplayPort during boot display port slot slot, so I'm forced to use one of them with a Display Port adapter There the monitor gets some output at least, but only with display port slot Supports up to 3 independent displays (native display and 2 external slot • One drive slot, supports SATA HDD • One 2280 PCIe® Gen

display slot Does it matter which DisplayPort slot I use if there's multiple DP ports ?