Artesyn ATCA-8330 Installation and Use (April 2015) - Manual (Page 96)

BIOS
ATCA-8330 Installation and Use (6806800S82B) 96
4.13 BIOS Status Codes
The following tables list the BIOS POST codes. The BIOS POST codes are written to the blade's
I/O Port 80 register and can be obtained by reading the "POST code" on-board IPMI sensor. The
reading of the "POST code" sensor is only valid when the board is in the BIOS phase. The reading
can be used to locate the cause of a board hang during BIOS phase. When the board has booted
a OS, the reading of the '"POST code" sensor returns no valid status code.
For debugging purpose, the POST Codes can be printed to the serial console by setting DIP
Switch 4-3 and 4-4 to ON.
Table 4-18 BIOS Status Codes
POST Code Description
0x01 Power On Post Code
0x02 Early Microcode Load
0x03 Enable Cache
0x06 Early CPU Init
0x20 SMI Init DXE
0x21 ACPI Support
0x22 APCI Table Init
0x23 ACPI Load Table
0x24 AHCI ASPI Init
0x25 AHCI Bus Init
0x26 AHCI PassThru Init
0x28 Boot Manager
0x29 Boot Menu
0x2A Boot Mode PEI
0x2C Boot Script
0x2E Boot Type
0x2F Capsule Service PEI/RT
0x31 Console Init
0x34 USB Legacy Init