SUPERSERVER
POST (hex)
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
20h
21h
22h
23h
Defi nition
Use walking 1's algorithm to check out interface in CMOS circuitry. Also set
Reserved
Program chipset default values into chipset. Chipset default values are MODBINable by OEM customers.
Reserved
Initial Early_Init_Onboard_Generator switch
Reserved
Detect CPU information including brand, SMU type (Cyrix or Intel) and CPU level (586 or 686)
Reserved
Reserved
Initial interrupts vector table. If no special specifi ed, all H/W interrupts are directed to SPURI- OUS_INT_HDLR & S/W interrupts to SPURIOUS_softHDLR.
Reserved
Initial EARLY_PMI_INIT switch
Reserved
Load keyboard matrix (notebook platform)
Reserved
HPM initialization
Reserved
1.Check validity of RTC value, e.g. a value of 5Ah is an invalid value for RTC minute.
2.Load CMOS settings into BIOS stack. If CMOS checksum fails, use default value instead.
3.Prepare BIOS resource map for PCI and PnP use. If ESCD is valid, take into consideration of the ESCD's legacy information.
4.Onboard clock generator initialization. Disable respective clock resource to empty PCI & DIMM slots.
5.Early PCI initialization:
-Enumerate PCI bus number
-Assign memory and I/O resource
-Search for a valid VGA device and VGA BIOS and put it into C000:0.
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
Reserved
Reserved
Reserved
Initialize INT 09 buffer
Reserved
1.Program CPU internal MTRR (P6 & PII) for
2.Initialize the APIC for Pentium class CPU.
3.Program early chipset according to CMOS setup. Example: onboard IDE controller.
4.Measure CPU speed.
5.Invoke video BIOS.
Reserved
Reserved
Reserved
1.Initialize
2.Put information on screen display, including Award title, CPU type, CPU speed, etc.
Reserved