Answer:This can only be searched by yourself. It is not easy to get the firmware of an old mobile phone, and it is also meaningless to help you search.
Answer:The a320 does not support overclocking. Both the b350 and x370 support overclocking. The x370 also supports dual card fire fighting. The b350 has the highest cost performance without dual card fire fighting.
Answer:The A320 motherboard does not support the XFR function. Do not select the suffix with X.CPU with X is equipped with XFR function. Without X, there is no CPU.R5 1400 is OK, but it's better to choose R5 1600, which can run for five years without problem