Sometime in the recent past, my PC has stopped showing a splash screen or access to BIOS. I know that it's accepting the delete key entrance into BIOS, but I'm not seeing it on the screen. I have a Ryzen 93900X, MSI 470X motherboard, 16 gigs of RAM, RX 5700 XT. I need to get into my bios to take advantage of RAM XMP settings. please help.