There are many drivers that don't have Microsoft's 64-bit digital signature, but it doesn't matter, you can use it.
ATI HD3870 graphics card can be successfully driven under 64-bit operating system, but there is no digital signature except the official driver. And the 64-bit operating system is not easy to use, because most software is not compatible with the 64-bit operating system.
Dude upstairs, didn't you know ATI was acquired by AMD?
Motherboard 64-bit download address
/DriverDownload.aspx？ file _ id = 68 ojhpk 6 jjzi 5 mqtiquecvq % 3d % 3d
Video card 64-bit download address:
/us/gpudownload/Pages/index . aspx
Common QQ has these software supports, but it should not be very stable.
64-bit operating system and 32-bit operating system are not backward compatible as usual, but different. When they were developed, the language rules and coding specifications of the software were different, so they were not backward compatible.