When I turn my computer on, everything will switch on for half a second, then stall for around 2 seconds and turn back on again. During the stalling time, the red motherboard lights are still on. Recently, I have overclocked my i7-4790k with a very slight voltage change and when I tested for stability, it showed no signs of errors or crashing. I've had experience with 2 of this exact motherboard models and both did this. Is this normal? I also have the latest BIOS and drivers installed.