Skylake i7 6700k 4.9Ghz Overclock

[melenie]

CPU: Intel Core i7 6700K @ 4.90GHz
RAM:16GB DDR4 Dual-Channel Gskil trident Z @ 3600MHz (17-18-18-38)
Motherboard: ASUS MAXIMUS VIII HERO (LGA1151)
GPU: MSI Gaming X NVIDIA GeForce GTX 1080
PSU: EVGA SuperNOVA G2 Gold 750W
Storage:
2.0TB Seagate Barracuda
120GB Samsung SSD 850 EVO
500GB Samsung SSD 850 EVO
Operating System
Windows 10 Home 64-bit

Case Thermaltake core p5

Cooling:
RADIATOR: EK coolstream XE 480
Pump: EK-XTOP Revo D5 PWM
Resevoir: EK-RES X3 250

EK black nickel fittings
Ek plexi/nickel blocks - cpu, graphics and ram
EK HD 10&12mm Tubes

Playing around with some overclocking, I was able to achieve a stable 4.9ghz @ 1.375Vcore
My temps remained below 62c while stress testing with prime95

Interestingly enough, I was unable to achieve 5ghz even though I still had a lot of headroom with thermals. Increasing the Vcore to 1.45v I still could not achieve a stable overclock @ 5ghz. I would run prime95 and temps would hover around 74c but within a few minutes, I'd crash.

Wondering if its not the cpu itself but overall stability of the system, more so looking at my ram running XMP 3600Mhz @1.35v.

Do you think increasing ram voltage slightly would create a more stable system when attempting to hit a 5ghz cpu clock?

All things aside. 4.9ghz @1.375 seems to me like I've got a decent lottery here. I just can't understand why I'm unable to hit 5Ghz even with an additional .075V increase as well as thermal room.

 

[William Henrickson]

Try running the RAM with XMP off, keep the RING at 4.0ghz

 

[scuzzycard]

Wow, that is quite the modern art masterpiece, I've gotta say. Having you considered delidding, or paying a company to delid? All that voltage is not healthy, even though your temps are very very good.