74

Detect & Initialize Math

Initialize math coprocessor.

 

Coprocessor

 

 

 

 

75

HDD Check for Write

HDD check out

 

protection

 

 

 

 

76

Reserved

 

 

 

 

77

Display POST error

Check POST error and display them and ask for user intervention -

 

 

Ask password security (optional).

 

 

 

78

CMOS and Option ROM Init

Write all CMOS values back to RAM and clear screen. Enable parity

 

 

checker Enable NMI, Enable cache before boot. Initialize any option

 

 

ROMs present from C8000h to EFFFFh.

 

 

 

79

Reserved

 

 

 

 

7A

Reserved

 

 

 

 

7B

Reserved

 

 

 

 

7C

Reserved

 

 

 

 

7D

Boot Medium detection

Read and store boot partition head and cylinders values in RAM

 

 

 

7E

Final Init

Final init for last micro details before boot

 

 

 

7F

Special KBC patch

Set system speed for boot, Setup NumLock status according to

 

 

Setup

 

 

 

80

Boot Attempt

Set low stack Boot via INT 19h.

 

 

 

FF

Boot

 

 

 

 

BOOT BLOCK POST CODES

 

 

 

 

Code(hex)

Name

Description

 

 

 

1

Base memory test

Clear base memory area (0000:0000--9000:ffffh)

 

 

 

5

KB init

Initialized KBC

 

 

 

12

Install interrupt vectors

Install int. vector (0-77), and initialized 00-1fh to their

 

 

proper place

 

 

 

0D

Init Video

Video initializing

 

 

 

41

Init FDD

Scan floppy and media capacity for onboard superIO

 

 

 

FF

Boot

Load boot sector

 

 

 

For a more detailed treatment of POST CODES, please see the POST CODES PDF document that is located on your driver CD in the Manuals section.

EVGA Corporation 2900 Saturn St. Suite B, Brea, CA 92821

Phone: 888 / 881-EVGA - 714 / 528-4500 - Fax: 714 / 528-4501

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EVGA 131-K8-NF44-XX manual Boot Block Post Codes