5820k 4.3Ghz 1.32v 78c Max No Luck
5820k 4.3Ghz 1.32v 78c Max No Luck
I think I received a lower binned chip. It runs at 55c when idle, 65c during gaming, and maxes out around 78c. I can reach the desktop with 4.5Ghz using 1.42v, but under stress tests temperatures rise to 85c and it crashes. I've noticed many people getting 4.5GHz at voltages below 1.3voltz. I understand air cooling with a 212 EVO will restrict overclocking margins, though it shouldn't change the voltage requirements.
Half of the chips are below average, and yours seems to be around the norm. One of my G3258s won’t exceed 4.2Ghz, even at 1.4V. I wouldn’t aim higher than the 1.320 you mentioned—it’s still a significant overclock.
My data shows an i7 5280K averaging around 1.3V at 4.3Ghz, which suggests your chip is average. The perception can be skewed because some users claim higher speeds while others doubt their results and stay silent.
I’d consider a better cooler to lower temperatures and prolong your CPU’s lifespan. A decent cooler should cost around $50. The one you have isn’t built for the 200W that extreme Haswell models can reach when overclocked.
Half of the chips are below average, and yours seems to be around the norm. One of my G3258s won’t exceed 4.2Ghz, even at 1.4V. I wouldn’t want to surpass the 1.320 you mentioned—it’s still a significant overclock.
My data shows an average V of about 1.3 for the i7 5280K at 4.3Ghz, so it seems like you have a typical chip. The perception gets skewed because people who reach 4.6Ghz often boast, while those stuck at 4.0Ghz stay silent.
I’d consider a better cooler to lower temperatures and prolong your CPU’s life. A decent one should cost around $50. The one you have isn’t built for the 200W that extreme Haswell models can hit when overclocked.
I have gathered useful details from DonkeyOatie. I can include my own information here, as I share a similar OC with my 5820k. For stability at 4.4Ghz I need 1.325. Booting at 4.5 is possible, but quick bench tests aren't reliable. I don’t have high temperatures (custom loop), yet I’m hesitant to increase voltage much. My current OC stays around 1.1Ghz. I agree a better cooler would help. The power consumption and heat output rise significantly when increasing the OC. During testing at similar settings, I used a Noctua NH-U14S and temperatures would reach about 90°C with ASUS Realbench, though it didn’t crash. It’s extremely hot for long-term use.
If I may propose... You should aim for a lower OC on your chip and keep it under 1.3V.
It really makes more sense, particularly when running on air. I don’t believe that the slight performance gain is worth the heat or the risk of crashes if it isn’t fully stable.
Regarding the high temperatures, especially during idle... Did you possibly adjust the C states?
Load the default BIOS for a moment and check if idle drops.
Agree with mp5 mafia.
Reduce your speed to 4.1GHz, and you won't notice any performance changes when using the PC.
At this setting, stability becomes easier to achieve, and a lower Vcore will extend your CPU's lifespan while keeping it cooler.