clover 5103 Operating System MacOS Catalina 10.15.3 19D76 dell_latitude5470_i7-6820hq bios v1.21.6 CFG Lock is unlock BIOS Lock is unlock BIOS DVMT setup 96MB memory ddr4 2133mhz 16GB cpu i7-6820hq 2.71GHz hard disk SSD intel 4500 480GB wifi card kf4 1820a