|You probably can't use that CPU, no matter which bios version the mboard has. |
There is no AMD Phenom II x4 B95 listed in the CPU comptaibility list on the ECS site for your mboard here:
Click on the CPU heading
...and it's not listed here:
ECS A780GM-A(V1.1) CPU compatibility list
Get a CPU that's on the list.
The newest bios version release note says Support 6 core CPU but it doesn't say which ones.
The CPU support list on the ECS site has no info about what bios version you need to support each CPU version .
The CPU-Upgrade site shows the minimum bios version for some of the CPUs on the same line = the older version of the two bios updates listed on the ECS web site.