Not all processor cores are available, how to enable?

Question

Iron

I decided the other day to revive an old PC by changing the processor from a quad-core fx 4300 to an eight-core fx 8320, which should work in conjunction with an rx 470 4gb. But bad luck, after installing a new processor in cpuz, it shows that it has only 4 cores and 4 threads, although it should be 8 each. Perhaps you need to update the BIOS or the motherboard does not support the percentage, but I don’t really understand this and I don’t want to harm computer.
Motherboard "ecs a960m-m3" PSU 450W

Answer 1

Try updating BIOS
https://www.ecs.com.tw/en/Product/Motherboard/A960...

Socket AM3+ AMD FX Series 8300 since 4/18/2012