Reinitialize Preboot agent serial port
If EISA non-volatile memory checksum is good, execute
EISA initialization. If not, execute ISA tests and clear EISA
mode flag.
Size base memory from 256K to 640K and extended
memory above 1MB.
Initialize APIC and set MTRR
Initialize USB controller
Test all memory of memory above 1MB using Virtual 8086
mode, page mode and clear the memory
Detect CPU speed and display CPU vendor specific version
string and turn on all necessary CPU features
PnP logo and PnP early init
Setup virus protect according to Protect Setup
If required, will auto load Awdflash.exe in POST
Init Initializing onboard superIO