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Supermicro C7B250-CB-MK Motherboard User’s Manual

Forbidden Signatures ........................................................ 4-36

Append Forbidden Signature .............................................. 4-36

Delete Authorized TimeStamps .......................................... 4-36

Authorized TimeStamps .................................................... 4-36

Append Authorized TimeStamp .......................................... 4-36

Delete OSRecovery Signatures ........................................... 4-37

OsRecovery Signatures ..................................................... 4-37

Append OsRecovery Signature ........................................... 4-37

4-6 Thermal & Fan ..................................................................... 4-38

Fan Control ......................................................................... 4-39

Fan Speed Control Mode ................................................... 4-39

4-7 Save & Exit ......................................................................... 4-40

Boot mode select ............................................................. 4-40

FIXED BOOT ORDER Priorities ............................................ 4-40

Legacy Boot Option #1~#8 ............................................... 4-40

USB Key Drive BBS Priorities ............................................. 4-40

NETWORK Drive BBS Priorities ........................................... 4-40

Boot Override .................................................................. 4-40

SMI USB DISK 1100 ......................................................... 4-41

Launch EFI Shell from lesystem device ............................. 4-41

4-8 BIOS Update ....................................................................... 4-42

Start Update ................................................................... 4-42

Appendix A BIOS Error Beep Codes

A-1 BIOS Error Beep Codes .......................................................... A-1

Appendix B Software Installation Instructions

B-1 Installing Drivers ................................................................... B-1

B-2 Conguring SuperDoctor

5 ................................................... B-2

Appendix C UEFI BIOS Recovery Instructions

C-1 An Overview to the UEFI BIOS ................................................ C-1

C-2 How to Recover the UEFI BIOS Image (-the Main BIOS Block) .... C-1

C-3 To Recover the Main BIOS Block Using a USB-Attached Device .... C-2

Appendix D Dual Boot Block

D-1 Introduction ..........................................................................D-1

BIOS Boot Block ....................................................................D-1

BIOS Boot Block Corruption Occurrence ..................................D-1

D-2 Steps to Reboot the System by switch JBR1 .............................D-2

Supero C7B250-CB-MK User Manual

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