Supermicro Desktop 5130DQ-IL User Manual page 107

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Desktop 5130DQ-IL User's Manual

D.2 BIOS Boot Block

This motherboard supports the Dual Boot Block feature, which is a last-ditch mechanism to

recover the BIOS boot block.

A BIOS boot block is the minimum BIOS loader required to enable necessary hardware

components for the BIOS crisis recovery flash that will update the main BIOS block. An on-

call BIOS boot-block corruption may occur due to a software tool issue (see image below) or

an unexpected power outage during BIOS updates.

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Reading flash . . . . . . . . . . . . . . . . . . . . . . done

-- ME Data Size checking . ok

-- FFS checksums . . . . . . . . ok

Erasing Boot Block . . . . . . . . . . . done

__Updating Boot Block . . . . . . . . 0x00A91000 (13%)

BIOS Boot Block Corruption Occurrence

When a BIOS boot block is corrupted due to an unexpected power outage or a software tool

malfunctioning during a BIOS update, you can still reboot the system by activating switch

JBR1 on the motherboard. When JBR1 is activated, the system will boot from a backup boot

block pre-loaded in the BIOS by the manufacturer.

Rebooting the System with JBR1

1. Power down the system.

2. Set the JBR1 switch to ON and power on the system.

3. Follow the BIOS recovery procedure listed in the previous section of this Appendix C.

4. After completing the steps above, power down the system.

5. Turn JBR1 OFF and power on the system.

AMI Firmware Update Utility vX.XX.XX

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