M.2_1 Socket 3 Configuration
The documentation says that if M.2_1 is occupied then SATA 1 is disabled, but it doesn't say what happens to SATA 1 if you've configured M.2_1 as PCIe in bios. I'm assuming that configuring M.2_1 as PCIe means that SATA 1 ISN'T disabled, but can't f...