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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