msi b550a

I noticed a strange issue with my custom-built PC that only really recently paid attention to since I need to turn on virtualization for Bluestacks. I'm able to get into Windows 11 just fine, but I'm not actually able to see the BIOS. This isn't only limited to BIOS. I can't see POST or...

I have the Motherboard Msi B550-A Pro mATX AM4 motherboard and the Phanteks Eclipse P360A ATX Tower Case. For the life of me, I can not figure out which cable from the case connects to the motherbaord to supply the power. Any and all help is greatly appreciated!