7. BIOS Setup
90
PC-686BX(NLX)-LV, PC-686BX(NLX)-LVV
Table 7.4. POST Codes
< 2 / 5 >
19h
Not used
1Ah
Not used
1Bh
Initial interrupt vector table. Unless otherwise specified, all hardware interrupts are assigned to
SPURIOUS_INT_HDLR and all software interrupts are assigned to SPURIOUS_soft_HDLR.
1Ch
Not used
1Dh
Initial EARLY_PM_INIT switch
1Eh
Not used
1Fh
Load keyboard template. (Notebook platform)
20h
Not used
21h
Initialize HPM. (Notebook platform)
22h
Not used
23h
1. Verify RTC value is valid. For example 5Ah is an invalid value for the RTC minutes field.
2. Load CMOS settings to BIOS stack. If the CMOS checksum is incorrect, use default values.
3. Create the BIOS resource map used by PCI and PnP. If ESCD is enabled, take account of
ESCD legacy data.
4. Initialize on-board clock generator. Disable clock resources and set PCI slots and DIMM slots
empty.
5. Perform initial PCI initialization.
- List PCI bus numbers.
- Allocate memory and I/O resources.
- Search for valid VGA device and VGA BIOS and locate at C000:0.
24h
Not used
25h
Not used
26h
Not used
27h
Initialize INT 09 buffer
28h
Not used
29h
1. Set the 0 - 640K memory addresses in the MTRR (P6 & PII) in the CPU.
2. Initialize APIC for Pentium class CPUs
3. Set the initial chipset based on the CMOS setup. e.g. On-board IDE controller.
4. Measure CPU speed.
5. Call video BIOS.
2Ah
Not used
2Bh
Not used
2Ch
Not used
2Dh
1. Initialize multilingual.
2. Display Award title, CPU, type, CPU speed, and other information on screen.
2Eh
Not used
2Fh
Not used
30h
Not used
31h
Not used
32h
Not used
33h
Reset keyboard. (Other than for the Winbond 977 series super I/O chip)
34h
Not used
35h
Not used
POST (hex)
Description
Содержание PC-686BX(NLX)-LV
Страница 7: ...vi PC 686BX NLX LV PC 686BX NLX LVV ...
Страница 19: ...2 Specifications 12 PC 686BX NLX LV PC 686BX NLX LVV ...
Страница 45: ...5 CPU Board Resources 38 PC 686BX NLX LV PC 686BX NLX LVV ...
Страница 101: ...7 BIOS Setup 94 PC 686BX NLX LV PC 686BX NLX LVV ...