Finishing up my first build and wanted to flash BIOS using just the CPU because I'm waiting on power cables for the GPU. I have an i7 12th Gen with integrated graphics so it should be enough to run picture and flash BIOS. When I turned it on, the rear MoBo ports USB/HDMI/DP do not work. I have an hdmi connected monitor, usb keyboard and usb mouse plugged in. The monitor never gets a signal and the m/kb don't even flash lighting. The MoBo has a red and a yellow indicator light flashing. The manual says it means cpu not detected or fail for the red light and dram not detected or fail for the Yellow. Every cable is connected correctly and tightly. Cpu is mounted properly. Reset the CMOS and BIOS. Downloaded the new BIOS and it won't flash. Any help would be greatly appreciated. Thank you in advance.
MoBo - Z690 Edge DDR4 /// CPU - i7 12th Gen /// RAM - 4 x 8g Corsair Vengeance /// PSU - Corsair rm1000x
MoBo - Z690 Edge DDR4 /// CPU - i7 12th Gen /// RAM - 4 x 8g Corsair Vengeance /// PSU - Corsair rm1000x