Chapter 4
165
89h
Enable Non-Maskable Interrupts (NMIs)
8Ah
Initialize Extended BIOS Data Area
8Bh
Test and initialize PS/2 mouse
8Ch Initialize
floppy
controller
8Fh
Determine number of ATA drives (optional)
90h
Initialize hard-disk controllers
91h
Initialize local-bus hard-disk controllers
92h Jump
to
UserPatch2
93h
Build MPTABLE for multi-processor boards
95h
Install CD ROM for boot
96h
Clear huge ES segment register
97h
Fixup Multi Processor table
98h 1-2
Search
for option ROMs. One long, two short beeps on checksum
failure
99h
Check for SMART Drive (optional)
9Ah Shadow
option
ROMs
9Ch
Set up Power Management
9Dh
Initialize security engine (optional)
9Eh
Enable hardware interrupts
9Fh
Determine number of ATA and SCSI drives
A0h
Set time of day
A2h Check
key
lock
A4h Initialize
Typematic
rate
A8h Erase
F2
prompt
AAh
Scan for F2 key stroke
ACh Enter
SETUP
AEh
Clear Boot flag
B0h
Check for errors
B2h
POST done - prepare to boot operating system
B4h
1
One short beep before boot
B5h Terminate
QuietBoot
(optional)
B6h
Check password (optional)
B9h Prepare
Boot
BAh Initialize
DMI
parameters
BBh
Initialize PnP Option ROMs
BCh
Clear parity checkers
BDh
Display MultiBoot menu
BEh
Clear screen (optional)
BFh
Check virus and backup reminders
C0h
Try to boot with INT 19
C1h
Initialize POST Error Manager (PEM)
C2h
Initialize error logging
C3h
Initialize error display function
Code
Beeps
POST Routine Description
Summary of Contents for 4535 5133 - Aspire - Athlon X2 2.1 GHz
Page 6: ...VI ...
Page 44: ...Chapter 2 35 A progress screen displays ...
Page 49: ...40 Chapter 2 2 In DOS mode run the MAC BAT file to write MAC values to eeprom ...
Page 56: ...Chapter 3 47 5 Remove the HDD Cover as shown ...
Page 98: ...Chapter 3 89 4 Lift the bezel away from the panel ...
Page 101: ...92 Chapter 3 4 Lift the LCD Panel out of the casing as shown ...
Page 125: ...116 Chapter 3 4 Replace the single securing screw ...
Page 147: ...138 Chapter 3 ...
Page 194: ...Chapter 6 185 ...
Page 219: ...Appendix A 210 ...
Page 249: ...240 Appendix B ...
Page 251: ...242 Appendix C ...