Problem with 6600k OC
Problem with 6600k OC
Hi,
Three days ago I finally acquired my new desktop. Here are the details:
- Motherboard: Z170 Tomahawk
- GPU: GTX 1060 Gigabyte G1 Gaming
- CPU: Intel i5 6600K
- Power supply: Thermaltake Smart Se Modular 530W
- CPU cooling: Thermalright Macho 120RPM
- RAM: 8GB HyperX Fury 2400MHz CL15
Before purchasing, I extensively researched overclocking, mainly focusing on the 6600K and other Skylake models. I opted to boost my CPU voltage to 1.35V for optimization. However, benchmarks and Prime95 tests failed under these settings, so I reduced the multiplier to x44 while keeping the voltage constant. Still, stress tests encountered crashes.
My BIOS settings were configured as follows:
- CPU RATIO: 45
- CPU RATIO MODE: FIXED
- CPU CORE/GT VOLTAGE OVERRIDE: ACTIVE
- CPU CORE VOLTAGE: 1.35
In my view, with these specifications, achieving stable speeds around 4.5GHz or even 4.4GHz should be feasible at a fixed 1.35V. During testing, the CPU frequency remained consistent and temperatures stayed near 70°C (typically around 60°C). I also disabled Intel’s C-state feature.
Please let me know if you need further assistance!
P.S. Perhaps adjusting my power settings would help—currently they’re set to auto, and when using default OC mode ~4.1GHz the BIOS changes it to 255W.
P.S. I’ve also disabled the XMP profile for my RAM since it doesn’t affect performance. The memory speed remains unchanged.
Yes, but at 4.4 GHz my system fails the realbench test and prime95 remains active. How about the X.MP profile for RAM? I didn't turn it on.
XMP influences memory timing only. If you consider trying to run your CPU cache or ring bus at a reduced frequency compared to the CPU core, it might help. This approach has previously caused stability problems.
okey, I started from the end on this post. Now i tried to do something lower 4,3 Ghz - 1,37V and booom blue screen... okay so i put default OC settings provided by MSI 4,1GHz and 1,32V and what ? of course also boom... I used OCC to stress test. What do you advise me ? should I complain this CPU I mean exchange it for the other one?
I question if they'd send a replacement for a CPU since it doesn't reach the high overclock levels you desire, but if the retailer is friendly, they could consider it.
(the chip selection is unpredictable.)
This is why platforms such as https://siliconlottery.com/ become popular.
you know i can't get 4,4-4.5 ghz but it should work with the manufacturer's settings...
hello i have maybe same problem
i work my cpu at 4.5mhz and 1.30v and works fine BUT for a reason that I do not understand WORKS always at 100% and I have lag effect to the cursor. Perhaps the 6600k is not so good choice as much as they say.