Acer Altos G520 User Manual
Page 180
Appendix F: Diagnostic Code Checkpoints
170
Check
point
Diagnostic LED Decoder
Description
G=Green, R=Red, A+Amber
MSB
LSB
D7
R
A
G
A
Restore CPUID value back
into register. The
Bootblock-Runtime
interface module is moved
to system memory and
control is given to it.
D8
A
R
OFF
R
The Runtime module is
uncompressed into
memory. CPUID
information is stored in
memory.
D9
A
R
OFF
A
Store the Uncompressed
pointer for future use in
PMM. Copying Main BIOS
into memory. Leaves all
RAM below 1MB Read-
Write including E000 and
F000 shadow areas but
closing SMRAM.
DA
A
R
G
R
Restore CPUID value back
into register. Give control
to BIOS POST (Execute
POST Kernel). See POST
Code Checkpoints section
of document for more
information.
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