Tomcat i7230A S5160 
                                        Appendix II: Post Error Code for BIOS 
Code 
Beeps / Description 
Code 
Beeps / Description 
6Ah  
Display external L2 cache size 
A2h 
Check key lock 
6Bh  
Load custom defaults (optional) 
A4h 
Initialize Typematic rate 
6Ch 
Display shadow area message 
A8h 
Erase F2 prompt 
6Eh  
Display possible high address  AAh 
Scan for F2 key stroke 
for UMB recovery 
70h  
Display error messages 
ACh 
Enter SETUP 
72h  
Check for configuration errors 
AEh 
Clear Boot flag 
76h 
Check for keyboard errors 
B0h 
Check for errors 
7Ch 
Set up hardware interrupt  B2h  
POST done   prepare to boot 
vectors 
operating system 
7Eh  
Initialize coprocessor if present 
B4h 
One short beep before boot 
80h 
Disable onboard Super I/O  B5h Terminate 
QuietBoot 
(optional) 
ports and IRQs 
81h  
Late POST device initialization 
B6h 
Check password (optional) 
82h 
Detect and install external  B9h Prepare 
Boot 
RS232 ports 
83h  
Configure 
non MCD 
IDE 
BAh Initialize 
DMI 
parameters 
controllers 
84h 
Detect and install external  BBh 
Initialize PnP Option ROMs 
parallel ports 
85h 
Initialize PC compatible PnP  BCh Clear 
parity 
checkers 
ISA devices 
86h. 
Re initialize onboard I/O ports. 
BDh 
Display MultiBoot menu 
87h 
Configure Motherboard Devices 
BEh 
Clear screen (optional) 
88h 
Initialize BIOS Data Area 
BFh 
Check 
virus 
and 
backup 
reminders 
89h Enable 
Non Maskable 
C0h 
Try to boot with INT 19 
Interrupts (NMIs) 
8Ah 
Initialize Extended BIOS Data  C1h  
Initialize POST Error Manager 
Area 
(PEM) 
8Bh 
Test and initialize PS/2 mouse 
C2h 
Initialize error logging 
8Ch 
Initialize floppy controller 
C3h 
Initialize error display function 
8Fh 
Determine number of ATA  C4h 
Initialize system error handler 
drives (optional) 
90h 
Initialize hard disk controllers 
C5h  
PnPnd dual CMOS (optional) 
91h Initialize 
local bus 
hard disk 
C6h 
  Initialize notebook docking 
controllers 
(optional) 
92h  
Jump to UserPatch2 
C7h  
Initialize notebook docking late 
93h 
Build MPTABLE for multi 
C8h  
Force check (optional) 
processor boards 
95h 
Install CD ROM for boot 
C9h  
Extended checksum (optional) 
96h 
  Clear huge ES segment D2h BIOS 
Boot 
Block 
register 
97h  
Fixup Multi Processor table 
E0h  
BIOS Boot Block 
98h  
1 2. Search for option ROMs.  
E1h  
BIOS Boot Block 
99h 
Check for SMART Drive E2h  
Initialize the CPU 
(optional) 
9Ah 
Shadow option ROMs 
E3h  
Initialize system timer 
9Ch 
Set up Power Management 
E4h  
Initialize system I/O 
9Dh  Initialize security engine 
E5h  
Check force recovery boot 
(optional) 
9Eh  
Enable hardware interrupts 
E6h  
Checksum BIOS ROM 
9Fh  
Determine number of ATA and  E7h 
Go to BIOS 
SCSI drives 
A0h  
Set time of day 
E8h  
Set Huge Segment 
56
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