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G486-EVA
POST (hex)
20
21-2F
30
31
32
33-3B
3C
3D
3E
3F
BF
40
41
Name
Enable slot 0
Enable slots 1 - 15
Size base and
extended memory
Test base and
extended memory
Test EISA extended
memory
Reserved
Setup enabled
Initialize and install
mouse
Setup cache
controller
Reserved
Chipset initialization
Initialize floppy drive
and controller
Description
Initialize slot 0 (system board).
Initialize slots 1 through 15.
Size base memory from 256K to 640K and
extended memory above 1MB.
Test base memory from 256K to 640K and
extended memory above 1MB using various
patterns.
Note: This will be skipped in EISA mode and
can be "skipped" with ESC key in ISA mode.
If EISA mode flag is set then test EISA
memory found in slots initialization.
Note: This will be skipped in ISA mode and
can be "skipped" with Esc key in EISA
mode.
Detect if mouse is present, initialize mouse,
install interrupt vectors.
Initialize cache controller.
Program chipset registers with Setup values.
Display virus protest disable or enable.
Initialize floppy disk drive controller and any
drives.
Appendix B
u
B-4