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> Overclocking CPU, I need an advice
♠ The Joker ♠
post Aug 21 2015, 03:05 PM
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Peasant
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My rig:
CPU: intel i5-2500k Quad Core 3,30 Ghz
GPU: Msi Gtx 970 Gaming 4GB
RAM: 8GB
OS: Windows 10 Home
Monitor: 1920x1080

Hello, I have done my 1st cpu overclock and the results were not according to my expectations. I overclocked 33 CPU Ratio to 40 so each core has 4,0 Ghz and CPU Core Voltage to 1150 V. I tried playing Witcher 3 Wild Hunt afterwards and there was 0 difference in performance, FPS was the same only CPU temperature raised from 38-50°C (60°C+ while gaming) to 70°C+ after few minutes, so I turned CPU settings back to normal. I don't know if the problem is that my CPU is 5year old ( it's the only part in my pc that I haven't upgraded yet) and the thermal paste must be completely decomposed and that I am using CPU stock cooler, but other people who I know got a lot better results. Can you guys please tell me what's wrong or advice me what settings should I use? I am 18 years old and studying at Grammar school so I am not so good at those things, actually I am noob tongue.gif
I am looking forward to your answers. Thanks smile.gif
( Sorry for my english)
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Yet Another Fool
post Aug 21 2015, 03:14 PM
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Knight
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The lithography on second gen is 32nm, it heats more than fourth gen with 22nm.
Also using the stock cooler with overclocked CPU isn't recommanded. 70°C while gaming isnt a big issue, but the more it heats the less lifespan it has. Temperature shouldnt affect prformance as long as it doesn't reach the maximum allowed by your BIOS (should be 90 or 100°C), that would cause thermal throttling (reducing CPU speed to maintain temperature).

Also keep in mind that some games rely more on the GPU than the CPU, but a GTX970 is a pretty good card so I don't think its the issue.
Having let's say 20% increase in fequency (in your case I don't know how much 3.3 to 4.0 is) don't mean you will get 20% more FPS.

You already have a Turbo feature built in your CPU to automaticaly set the clock speed to 3.7 instead of 3.4 GHz when needed.
Always disable SpeedStep and Turboboost if possible when overclocking.
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