MSI X79A-GD45 (8D) - Manual (Page 47)

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MS-7760
Chapter 1
Swtch
MULTI_BIOS_SWITCH: Mult BIOS Swtch
Ths manboard has two ndependent BIOS ROMs (Labeled A and B, default BIOS
ROM s A). If one s crashed, you can shft to the other for bootng by sldng the swtch.
In addton, these two BIOS ROMs do not have the Auto Recovery feature, you need to
mantan or update the BIOS verson by yourself.
A
B
B AT T +
BIOS recovery usng the M-flash utlty:
1. Ensure that the system s swtched off.
2. Boot up the system wth the operatonal BIOS ROM by swtchng the Mult-BIOS
swtch.
3. Enter the BIOS setup → Utltes → M-Flash → Save BIOS to storage and then save
the file to a bootable USB pen drve (root folder).
4. Swtch back to the BIOS ROM that needs to be recovered.
5. Choose “Select one file to update BIOS” and recover the BIOS ROM wth the file
saved n the USB pen drve.
Important
Do not use the BIOS swtch when system s bootng up.