Amd's ht bus and external frequency are multiples. This option is available in the bios. Generally, ht can be followed by 4x, 5x, 3x and so on.

The relationship between memory and main frequency is multiple. You can change the multiple relationship between the main frequency and the memory frequency by changing the memory settings.

Overclocking suggestion: the external frequency should be 250, the ht should be set to 4x, and the memory should be set to ddr333.

If it is unstable, the voltage can be added, and it is recommended not to be higher than 0. 1. If it is too high, heat dissipation will be very troublesome.