6 Tests and Error Messages

Order in Which POST Tests Are Performed

Checkpoint

 

MaxiLife LCD

Beep

POST Routine Description

Display

Code

Codes

 

Message

 

 

 

 

 

 

 

2Ch

RAM failure on address line 1

RAM Add. Failure

 

2Eh

RAM failure on data bits xxxx1 of low byte of memory bus

RAM Data Low

 

2Fh

Enable cache before system BIOS shadow

 

 

 

 

 

 

30h

RAM failure on data bits xxxx1 of high byte of memory bus

RAM Data High

 

32h

Test CPU bus-clock frequency

 

 

 

 

 

 

33h

Initialize POST Dispatch Manager

 

 

 

 

 

 

36h

Warm start shut down

 

 

 

 

 

 

38h

Shadow system BIOS ROM

Shadow BIOS

 

 

 

ROM

 

 

 

 

 

3Ah

Autosize cache

 

 

 

 

 

 

3Ch

Advanced configuration of chipset registers

 

 

 

 

 

 

3Dh

Load alternate registers with CMOS values

 

 

 

 

 

 

42h

Initialize interrupt vectors

 

 

 

 

 

 

45h

POST device initialization

 

 

 

 

 

 

46h

Check ROM copyright notice

 

 

 

 

 

 

48h

Check video configuration against CMOS

 

 

 

 

 

 

49h

Initialize PCI bus and devices

PCI Detection

5

 

 

 

 

4Ah

Initialize all video adapters in system

Video Detection

4

 

 

 

 

4Bh

Display QuietBoot screen (optional)

 

 

 

 

 

 

4Ch

Shadow video BIOS ROM

 

 

 

 

 

 

4Eh

Display BIOS copyright notice

 

 

 

 

 

 

50h

Display CPU type and speed

 

 

 

 

 

 

51h

Initialize EISA board

 

 

 

 

 

 

52h

Test keyboard

Keyboard Test

 

 

 

 

 

54h

Set key click if enabled

 

 

 

 

 

 

107