POST Codes are hexadecimal codes generated by the BIOS during the POST operation. These codes may be monitored on a special hardware "POST card" which displays them using a two digit alphanumeric display.
ISA POST codes are output to port address 80h.
EISA POST codes are typically output to port address 300h.
Complete POST code can be download in following link.
http://www.phoenix.com/NR/rdonlyres/0835996A-6694-4F6D-8243-1030EE040D92/0/postcode.pdf
