TECHNICAL INFORMATION 4-7
POST(hex)
DESCRIPTION
52
53
60
61
62
63
FF
Unexpected Errors:
POST(hex)
DESCRIPTION
B0
B1
1.Initialize all ISA ROMs.
2.Later PCI initializations. (PCI BIOS only)
-assign IRQ to PCI devices.
-initialize all PCI ROMs.
3.PnP Initialzations. (PnP BIOS only)
-assign IO, Memory, IRQ & DMA to PnP ISA devices.
-initialize all PnP ISA ROMs.
4.Program shadows RAM according to Setup settings.
5.Program parity according to Setup setting.
6.Power Management Initialization.
-Enable/Disable global PM.
-APM interface initialization.
1.If it is NOT a PnP BIOS, initialize serial & paralled ports.
2.Initialize time value in BIOS data area by translate the RTC time value into
a timer tick value.
Setup Virus Protection. (Boot Sector Protection) functionality according to Setup
setting.
1.Try to turn on Level 2 cache.
Note : if L2 cache is already turned on in POST 3D, this part will be skipped.
2.Set the boot up speed according to Setup setting.
3.Last chance for Chipset initialization.
4.Last chance for Power Management initialization. (Green BIOS only)
5.Show the system configuration table.
1.Setup daylight saving according to Setup value.
2.Program the NUM Lock, typematic rate & typematic speed according to Setup
setting.
1.If there is any changes in the hardware configuration, update the ESCD
information. (PnP BIOS only)
2.Clear memory that have been used.
3.Boot system via INT 19H.
System Booting. This means that the BIOS already pass the control right to the
operating system.
If interrupt occurs in protected mode.
Unclaimed NMI occurs.
