[Motherboard] How to check what Bioses version your motherboard is shipped with
The bioses version is bottom of the barcode label , it is the last 4 digits of the barcode label. The barcode label is located between CPU socket and the memory slots. For example, this Maximus XII Extreme motherboard shipped with bioses version 0403.
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For PRIME series, it is also shown between CPU socket and memory slot, see it close up to find exact locations of the bioses version. Example: PRIME X570-PRO shipped with bioses version 0405.
