63
Chapter 4
C7h
Initialize notebook docking late
C8h
Force check (optional)
C9h
Extended checksum (optional)
D2h
Unknown interrupt
Code
Beeps
For Boot Block in ROM
E0h
Initialize the chipset
E1h
Initialize the bridge
E2h
Initialize the CPU
E3h
Initialize system timer
E4h
Initialize system I/O
E5h
Check force recovery boot
E6h
Checksum BIOS ROM
E7h
Go to BIOS
E8h
Set Huge Segment
E9h
Initialize Multi Processor
EAh
Initialize OEM special code
EBh
Initialize PIC and DMA
ECh
Initialize Memory type
EDh
Initialize Memory size
EEh
Shadow Boot Block
EFh
System memory test
F0h
Initialize interrupt vectors
F1h
Initialize Run Time Clock
F2h
Initialize video
F3h
Initialize System Management Mode
F4h
1
Output one beep before boot
F5h
Boot to Mini DOS
F6h
Clear Huge Segment
F7h
Boot to Full DOS
Code
Beeps
POST Routine Description
Summary of Contents for Aspire 1800
Page 6: ...VI ...
Page 12: ...4 Chapter 1 Block Diagram ...
Page 13: ...Chapter 1 5 Mainboard Placement Top View Rear View ...
Page 75: ...67 Chapter 5 Clear CMOS ...
Page 77: ...69 Chapter 6 Exploded Diagram ...
Page 78: ...Chapter 6 70 ...
Page 84: ...76 HDD SHIELDING HDD SHIELDING 33 A29V5 003 HDD COVER HDD COVER 42 A29V5 005 ...
Page 97: ...89 Appendix C ...