601-7821-010 PCB 12 = BIOS 1xx = Z87-G45 GAMING
601-7821-020 PCB 20 = BIOS Axx = Z87-G55
601-7821-030 PCB 20 = BIOS Axx = Z87-S02
601-7821-060 PCB 20 = BIOS Bxx = Z97-S02
601-7821=050 PCB 121 = BIOS 2xx = Z97-G45 GAMING 
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Z97-G45 GAMING (MS-7821) V2.9 BIOS Release
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1. This is AMI BIOS release

2. This BIOS fixes the following problem of the previous version:
-  Improved memory compatibility.
-  Fix that system is not able to boot from legacy DVD ROM when RAID is activated.
-  Updated CPU microcode.

3. 2016/2/19

[Below information is Chinese language]

A. AMI BIOS o

B. ץUCD:
-  ﵽPO鶡ۮe.
-  ץRAID \ॴ},LkqDVD ROM}
-  sCPU Microcode.

C. s: 2016~219