TABLE H-44BIOS POST Codes

POST Code

Description

 

 

48Check video configuration against CMOS

49Initialize PCI bus and devices

4A

Initialize all video adapters in system

4B

QuietBoot start (optional)

4C

Shadow video BIOS ROM

4E

Display BIOS copyright notice

4F

Initialize MultiBoot

50Display CPU type and speed

51Initialize EISA board

52Test keyboard

54Set key click if enabled

55Enable USB devices

58Test for unexpected interrupts

59Initialize POST display service

5A

Display prompt “Press F2 to enter SETUP”

5B

Disable CPU cache

5C

Test RAM between 512KB and 640KB

60Test extended memory

62Test extended memory address lines

64Jump to UserPatch1

66Configure advanced cache registers

67Initialize Multi Processor APIC

68Enable external and CPU caches

69Setup system management mode (SMM) area

6A

Display external L2 cache size

6B

Load custom defaults (optional)

6C

Display shadow area message

6E

Display possible high address for UMB recovery

70Display error messages

72Check for configuration errors

Appendix H Service Processor Commands 189

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Sun Microsystems V40z, V20Z manual Table H-44BIOS Post Codes