Any time I buy a used board I check the board carefully for any kind of modification or odd looking solder joints and re-flash the bios/uefi with the latest ver

Any time I buy a used board I check the board carefully for any kind of modification or odd looking solder joints and re-flash the bios/uefi with the latest version. Of course something could still be modified, but so could a board direct from amazon or newegg I suppose.