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1E If EISA NVM checksum is good, execute EISA initialization
(EISA BIOS only)
1F-29 Reserved
30 Detect Base Memory & Extended Memory Size
31 1. Test Base Memory from 256K to 640K
2. Test Extended Memory from 1M to the top of memory
32 1. Display the Award Plug & Play BIOS Extension
message (PnP BIOS only)
2. Program all onboard super I/O chips (if any) including
COM ports, LPT ports, FDD port... according to
setup
value
33-3B Reserved
3C Set flag to allow users to enter CMOS Setup Utility
3D 1. Initialize Keyboard
2. Install PS2 mouse
3E Try to turn on Level 2 cache
Note: Some chipset may need to turn on the L2 cache in this
stage. But usually, the cache is turn on later in POST 61h
3F-40 Reserved
BF 1. Program the rest of the Chipset’ s value according to
Setup. (Later Setup Value Program)
2. If auto-configuration is enabled, programmed the chipset
with pre-defined values in the MODBINable Auto-
Table
41 Initialize floppy disk drive controller
42 Initialize Hard drive controller
43 If it is a PnP BIOS, initialize serial & parallel ports
44 Reserved
45 Initialize math coprocessor.
46-4D Reserved
4E If there is any error detected (such as video, kb...), show all the
error messages on the screen & wait for user to press <F1> key
4F 1. If password is needed, ask for password
2. Clear the Energy Star Logo (Green BIOS only)