MSI Z77 User Guide - Page 47

MSI Z77 Manual

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Chapter 1 MS-7751 Switch MULTI BIOS SWITCH: Multi-BIOS Switch This mainboard has two built-in BIOS ROMs (Labeled A and B, default BIOS ROM is A). If one is crashed, you can shift to the other for booting by sliding the switch. In addition, these two BIOS ROMs do not have the Auto Recovery feature, you need to maintain or update the BIOS version by yourself. A B BIOS recovery using the M-flash utility: 1. Ensure that the system is switched off. 2. Boot up the system with the operational BIOS ROM by switching the Multi-BIOS switch. 3. Enter the BIOS setup → UTILITIES → M-Flash → Save BIOS to storage and then save the file to a bootable USB pen drive (root folder). 4. Switch back to the BIOS ROM that needs to be recovered. 5. Choose "Select one file to update BIOS" and recover the BIOS ROM with the file saved in the USB pen drive. Important Do not use the Multi-BIOS Switch when the system is powered on. 1-35

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1-35
MS-7751
Chapter 1
Sw±tch
MULTI BIOS SWITCH: Mult±-BIOS Sw±tch
Th±s ma±nboard has two bu±lt-±n BIOS ROMs (Labeled A and B, default BIOS ROM ±s A).
If one ±s crashed, you can sh±ft to the other for boot±ng by sl±d±ng the sw±tch. In add±t±on,
these two BIOS ROMs do not have the Auto Recovery feature, you need to ma±nta±n or
update the BIOS vers±on by yourself.
A
B
BIOS recovery us±ng the M-flash ut±l±ty:
1.
Ensure that the system ±s sw±tched off.
2.
Boot up the system w±th the operat±onal BIOS ROM by sw±tch±ng the Mult±-BIOS
sw±tch.
3.
Enter the BIOS setup → UTILITIES → M-Flash → Save BIOS to storage and then
save the file to a bootable USB pen dr±ve (root folder).
4.
Sw±tch back to the BIOS ROM that needs to be recovered.
5.
Choose “Select one file to update BIOS” and recover the BIOS ROM w±th the file
saved ±n the USB pen dr±ve.
Important
Do not use the Mult±-BIOS Sw±tch when the system ±s powered on.