Additional Bios Post Codes - Supermicro C9Z490-PG User Manual

Appendix A: BIOS Codes
A.2 Additional BIOS POST Codes
The AMI BIOS supplies additional checkpoint codes, which are documented online at
https://www.supermicro.com/manuals/other/AMI_AptioV_BIOS_POST_Codes_for_SM_
Motherboards.pdf ("AMI BIOS POST Codes User's Guide").
When BIOS performs the Power On Self Test, it writes checkpoint codes to I/O port 0080h.
If the computer cannot complete the boot process, a diagnostic card can be attached to the
computer to read I/O port 0080h (Supermicro p/n AOC-LPC80-20).
For information on AMI updates, please refer to http://www.ami.com/products/.
133