ECB-862/862L

 

 

 

 

 

 

POST Code (hex)

 

Description

 

 

 

 

 

 

 

49h

1.

Calculate total memory by testing the last double word of each 64K page.

 

 

2.

Program writes allocation for AMD K5 CPU.

 

 

 

 

 

4Ah

Reserved

 

 

4Bh

Reserved

 

 

4Ch

Reserved

 

 

4Dh

Reserved

 

 

 

1.

Program MTRR of M1 CPU

 

 

 

2.

Initialize L2 cache for P6 class CPU & program CPU with proper

 

 

4Eh

 

cacheable range.

 

 

3.

Initialize the APIC for P6 class CPU.

 

 

 

 

 

 

4.

On MP platform, adjust the cacheable range to smaller one in case the

 

 

 

 

cacheable ranges between each CPU are not identical.

 

 

4Fh

Reserved

 

 

50h

Initialize USB

 

 

51h

Reserved

 

 

52h

Test all memory (clear all extended memory to 0)

 

 

53h

Reserved

 

 

54h

Reserved

 

 

55h

Display number of processors (multi-processor platform)

 

 

56h

Reserved

 

 

 

1.

Display PnP logo

 

 

57h

2.

Early ISA PnP initialization

 

 

 

 

-Assign CSN to every ISA PnP device.

 

 

58h

Reserved

 

 

59h

Initialize the combined Trend Anti-Virus code.

 

 

5Ah

Reserved

 

 

5Bh

(Optional Feature)

 

 

Show message for entering AWDFLASH.EXE from FDD (optional)

 

 

 

 

 

5Ch

Reserved

 

 

5Dh

1.

Initialize Init_Onboard_Super_IO switch.

 

 

2.

Initialize Init_Onbaord_AUDIO switch.

 

 

 

 

 

5Eh

Reserved

 

 

5Fh

Reserved

 

 

60h

Okay to enter Setup utility; i.e. not until this POST stage can users

 

 

enter the CMOS setup utility.

 

 

 

 

 

61h

Reserved

 

 

62h

Reserved

 

 

63h

Reserved

 

 

64h

Reserved

 

 

65h

Initialize PS/2 Mouse

 

 

 

 

 

 

ECB-862/862L User’s Manual 101