overclocking problems with i7 4790k
overclocking problems with i7 4790k
I used the YouTube tutorial (https://www.youtube.com/watch?v=eDHLGq-VQM4) to attempt overclocking my i7 4790k on the same motherboard. It functions without crashes, but temperatures are high—around 87°C on the first two cores and 80°C on the last two. I have a Corsair H100i water cooler and kept voltage/current settings consistent with the video (1.1v, target 4.2GHz). Other settings tried (4.4–4.7GHz at 1.2–1.35V) caused immediate crashes after running Prime95. After reviewing various articles and watching others’ experiences, it seems I’m facing a problem with this CPU. The room temperature is currently between 70–80°F, sometimes lower.
Well, the 80s aren't the final chapter when it comes to temperature trends. Each CPU behaves slightly differently, so adjustments are necessary. My old i7-4770k performed around 4.3Ghz at 1.29 core voltage, while 4.5Ghz at 1.35 was feasible but led to overheating in the high 90s. Doing that would have needed a delidding process. I’d estimate the average i7-4790k should run about 300Mhz under similar conditions. When testing, keep a steady voltage and experiment with offset settings once you identify the optimal voltage for each clock speed. Remember to boost the input voltage (Vin on ASUS) to the chip during your trials. I think I was applying around 2.0 volts.
Well, the 80s temperature range still looks manageable. Each CPU behaves differently, so you need to experiment a bit. My old i7-4770k performed around 4.3Ghz at 1.29 core voltage, and I managed 4.5Ghz at 1.35 but it got too hot in the high 90s. That would have needed a delidding fix. For the average i7-4790k, I’d expect about 300Mhz at similar voltages. Try keeping a steady voltage while testing, adjust the offset later once you know the right settings. Make sure to boost the input voltage (Vin on ASUS) for the chip during your tests. I think I was using around 2.0 volts. There aren’t many experts left—just the top players like der8auer.