No doubt too late in this case, but for the benefit of others, pressing CTRL F during bootup won't do anything if the BIOS is set to UEFI.
You need to boot into BIOS advanced mode, then select "Advanced" -> "SATA Configuration" -> "SB SATA Configuration" -> "Board SATA RAID ROM", and change UEFI driver to Legacy ROM. CTRL F will now work if you reboot. After making changes, you can revert back to the UEFI driver.