is this a good overclock?

[packersfan036]

overclocked a asus maximus vII hero motherboard a corsair cx600m power supply, and a i5 4690k cpu to 4.3 ghz and voltage is at 1.2 volts. ram is set with xmp at 1600 MHz 1.50v. ran a stress test and its stable.

 

[parani]

Stock cooler ?

 

[packersfan036]

Stock cooler ?

I'm using a corsair h100i v2 liquid cooler. my temps are 30c idle and 54c under a load.