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52 Off R G R Update CMOS memory size from memory found in memory test.
Allocates memory for Extended BIOS Data Area from base
memory.
60 Off R R Off Initialize NUM-LOCK status and programs the KBD typematic
rate.
75 Off O R O Initialize Int-13 and prepare for IPL detection.
78 GRRRInitialize IPL devices controlled by BIOS and option ROMs.
7A G R O R Initialize remaining option ROMs.
7C G O 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 error to the user and gets the user response to error.
87 RGGGExecute BIOS setup if needed/requested.
8C O G Off Off Late POST initialization of chipset registers.
8D O G Off G Build ACPI tables (if ACPI is supported).
8E OGGOffProgram 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.
A2 R Off O Off Take care of runtime image preparation for different BIOS
modules. Fill the free area in F000h segment with 0FFh.
Initializes the Microsoft
®
IRQ Routing Table. Prepares the
runtime language module. Disables the system configuration
display, if needed.
A4 R G R Off Initialize runtime language module.
A7 RGOGDisplay the system configuration screen, if enabled. Initialize the
CPUs before boot, including the programming of the MTRRs.
A8 O Off R Off Prepare CPU for operating system boot, including final MTRR
values.
A9 O Off R G Wait for user input at config display, if needed.
AA O Off O Off Uninstall POST INT1Ch vector and INT09h vector. De-initializes
the ADM module.
Check
point
Diagnostic LED decoder
G=Green, R=Red, O=Orange
Description