4.3 GHz! The stock A10-5600K is only 3.6 GHz with the capability to boost a couple cores to 3.9 GHz if only a couple threads are being addressed. If you have it at 4.3 GHz and stable, you must have it OC'ed now.
Do your OC'ing in BIOS. No software.
Basic OC'ing is done by disabling any turbo mode the board/CPU may have. Then increasing the CPU clock multiplier one click at a time. Save and exit to Win. Run a stress testing app like prime95 for an hour and watch that temps don't get/stay above mid 70Cs. If all is good and there's no failed cores, repeat. Eventually you will either get too warm or the OC will no longer be stable. You can either back off and live with the last good OC, or you can begin increasing the vcore about 0.05v at a time and repeat the above.