Acer Altos G520 series - Manual (Page 176)

Appendix F: Diagnostic Code Checkpoints 166
78 G R R R Initializes IPL devices
controlled by BIOS and
option ROMs.
7A G R A R Intializes remaining
option ROMs.
7C G A R R Generate and write
contents of ESCD in
NVRam.
84 R G OFF OFF Log errors encountered
during POST.
85 R G OFF G Display errors to the user
and get the user response
for error.
87 R G G G Execute BIOS setup if
needed/requested.
8C A G OFF OFF Late POST initialization of
chipset registers.
8D A G OFF G Build ACPI tables (if ACPI
supported).
8E A G G OFF Program the peripheral
parameters. Enable/
Disable NMI as selected
90 R OFF OFF R Late POST initialization of
system management
interrupt.
A0 R OFF R OFF Check boot password if
installed
A1 R OFF R G Clean-up work needed
before booting to
operating system.
Check
point
Diagnostic LED Decoder
Description G=Green, R=Red, A+Amber
MSB LSB
BB!H631!.!FO/cppl!!Qbhf!277!!Uvftebz-!Bvhvtu!28-!3115!!5;13!QN