The AMD Athlon CPU we tested this time is AMD Athlon II 400/405, which is scheduled to be announced soon around this summer. The CPU-Z below shows that we could upgrade AMD Athlon II 400/405, the X3 cores CPU into X4 cores simply by enabling the AOD-ACC function. However, not every AMD Athlon II 400/405 CPUs can be upgraded. We tested some CPU that some succeeded but some failed with a certain percentage.
This trick works on the following ASRock motherboards:
A790GMH/128M A780GMH/128M A790GXH/128M A790GX/128M A780GXH/128M AOD790GX/128M M3A790GXH/128M