www.gateway.com
Check Description point
40Detect different devices (parallel ports, serial ports, and coprocessor in CPU, and so on) successfully installed in the system and update the BDA, EBDA, and so on.
50Programming the memory hole or any kind of implementation that needs an adjustment in system RAM size, if needed.
52Updates CMOS memory size from memory found in memory test. Allocates memory for Extended BIOS Data Area from base memory.
60 | Initialize |
|
|
75 | Initialize |
|
|
78Initialize IPL devices controlled by BIOS and option ROMs.
7A Initialize remaining option ROMs.
7C Generate and write contents of ESCD in NVRam.
84Log errors encountered during POST.
85Display error to the user and gets the user response to error.
87Execute BIOS setup if needed/requested.
8C | Late POST initialization of chipset registers. |
|
|
8D | Build ACPI tables (if ACPI is supported). |
|
|
8E | Program the peripheral parameters. Enable/disable NMI as selected. |
|
|
90Late POST initialization of system management interrupt.
A0 Check boot password if installed.
A1
A2 | 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 | Initialize runtime language module. |
|
|
A7 | Display the system configuration screen, if enabled. Initialize the CPUs before boot, |
| including the programming of the MTRRs. |
A8 | Prepare CPU for operating system boot, including final MTRR values. |
|
|
A9 | Wait for user input at config display, if needed. |
|
|
AA | Uninstall POST INT1Ch vector and INT09h vector. |
|
|
AB | Prepare BBS in Int 19 boot. |
|
|
AC | End of POST initialization of chipset registers. |
|
|
B1 | Save system context for ACPI. |
|
|
00 | Pass control to OS Loader (typically INT19h). |
|
|
75