Just a quick video showing my overclock of 4.5ghz on an i5 4690k. This build was purchased second hand with the motherboard being the bargain £45. The motherboard was always my concern here being so cheap surely it must have problems.
Well it overclocks like a champ using Ai tuner in the bios, I was easily hitting 4.7ghz between 1.27 and 1.3 volts. But due to my cooler I backed down to 4.5ghz giving me a 29% overclock.

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