Appendix b bios post codes, Recoverable post errors, Terminal post errors – SUPER MICRO Computer 6015TC-10G User Manual

Page 93

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Appendix B: BIOS POST Codes

B-1

Appendix B

BIOS POST Codes

This section lists the POST (Power On Self Test) codes for the PhoenixBIOS. POST

codes are divided into two categories: recoverable and terminal.

Recoverable POST Errors

When a recoverable type of error occurs, BIOS will display an POST code that

describes the problem. BIOS may also issue one of the following beep codes:

1 long and two short beeps - video confi guration error

1 repetitive long beep - no memory detected

Terminal POST Errors

If a terminal type of error occurs, BIOS will shut down the system but before doing

so, will write the error to port 80h, attempt to initialize video and write the error in

the top left corner of the screen. The following is a list of codes that may be writ-

ten to port 80h.

POST Code Description

01h

IPMI Initialization

02h

Verify Real Mode

03h

Disable Non-Maskable Interrupt (NMI)

04h

Get CPU type

06h

Initialize system hardware

07h

Disable shadow and execute code from the ROM.

08h

Initialize chipset with initial POST values

09h

Set IN POST fl ag

0Ah

Initialize CPU registers

0Bh

Enable CPU cache

0Ch

Initialize caches to initial POST values

0Eh

Initialize I/O component

0Fh

Initialize the local bus IDE

10h

Initialize Power Management

11h

Load alternate registers with initial POST values

12h

Restore CPU control word during warm boot

13h

Reset PCI Bus Mastering devices

14h

Initialize keyboard controller

16h

1-2-2-3 BIOS ROM checksum

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