ESM-2850

40.3S4 POST Codes

Code (hex)

Name

Description

5A

Early Chipset Init

Early Initialized the super IO. Reset Video controller. Keyboard

 

 

controller init. Test the Keyboard Initilized the mouse

 

 

 

5B

Cmos Check

Check Cmos Circuitry and reset CMOS

 

 

 

5C

Chipset default Prog

Program the chipset registers with CMOS values. Init onboard

 

 

clock generator

 

 

 

5D

Identify the CPU

Check the CPU ID and init L1/L2 cache Initialize first 120 interrupt

 

 

vectors with SPURIOUS_INT_HDLR and INT 00h-1Fh according

 

 

to INT_TBL. First step initialize if single CPU Onboard. Re-init KB

 

 

If support HPM, HPM get initialized Here.

 

 

 

5E

Setup Interrupt Vector

Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR

 

Table

and INT 00h-1Fh according to INT_TBL. First step initialize if

 

 

single CPU Onboard. Re-init KB If support HPM, HPM get

 

 

initialized here.

 

 

 

5F

Test CMOS Interface

Verifies CMOS is working correctly, detects bad battery. If failed,

 

and Battery status

load CMOS defaults and load into chipset.

 

 

 

60

KBC final Init

Final Initial KBC and setup BIOS data area

 

 

 

61

Initialize Video Interface

Read CMOS location 14h to find out type of video in use. Detect

 

 

and Initialize Video Adapter.

 

 

 

62

Video memory test

Test video memory, write sign-on Test video memory, write

 

 

sign-on message to screen. Setup shadow RAM - Enable

 

 

shadow according to Setup.

 

 

 

63

Setup PS2 mouse and

Setup PS2 Mouse and reset KB Test DMA channel 0

 

test DMA

 

 

 

 

64

Test 8259

Test 8259 channel 1 and mask IRQ 9

 

 

 

65

Init Boot Device

Detect if mouse is present, initialize mouse, install interrupt

 

 

vectors. Special treatment to PS2 Mouse port ACPI sub-system

 

 

initializing Initialize cache controller.

 

 

 

66

Install Boot Devices

Enter setup check and auto-configuration check up Initialize

 

 

floppy disk drive controller and any drives. Install FDD and setup

 

 

BIOS data area Parameters Initialize hard drive controller and

 

 

any drives. IDE device detection and install

 

 

 

67

Cache Init

Cache init and USB init

 

 

 

68

PM init

PM initialization

 

 

 

69

PM final Init and issue

Final init Before resume

 

SMI

 

 

 

 

FF

Full on

 

 

 

 

90 ESM-2850 User’s Manual