Skylake i7 6700k at 4.9Ghz overclocking
Skylake i7 6700k at 4.9Ghz overclocking
CPU specifications are Intel Core i7 6700K running at 4.90GHz. RAM includes 16GB DDR4 Dual-Channel Gskil trident Z at 3600MHz. The motherboard is ASUS MAXIMUS VIII HERO (LGA1151). GPU is MSI Gaming X with NVIDIA GeForce GTX 1080. Power supply is EVGA SuperNOVA G2 Gold 750W. Storage consists of a 2.0TB Seagate Barracuda drive and two 120GB Samsung SSDs (850 EVO). Operating system is Windows 10 Home 64-bit. The case used is Thermaltake core p5 with EK coolstream XE 480 radiator, EK-XTOP Revo D5 pump, EK-RES X3 250 fan, and EK black nickel fittings. CPU features include EK plexi/nickel blocks for CPU, graphics, and RAM, along with EK HD 10&12mm tubes.
During testing, I managed to reach a stable 4.9GHz @ 1.375Vcore without overheating, keeping temperatures under 62°C during stress tests with Prime95. However, reaching 5GHz proved difficult despite having ample thermal headroom. Raising the Vcore to 1.45v didn’t yield a stable 5GHz overclock. I expected temperatures to rise to around 74°C during prolonged Prime95 runs, but the system would crash shortly afterward.
I’m curious if the issue lies not with the CPU itself, but rather with the overall system stability, especially considering my RAM operates at XMP 3600MHz @1.35V. Would slightly increasing the RAM voltage help achieve a more consistent performance at higher clock speeds? Regardless, 4.9GHz at 1.375V seems like a solid performance level for my setup.