3930k overclock help

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King Hackintosh

King Hackintosh

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Jun 1, 2013
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Hello I have just overclocked my i7-3930k to 4.5ghz using 4.65v on a Gigabyte X79-UP4. The BIOS says that I am running at 3.5ghz which i presume is because of speedstep. However, when I run prime95, according to CPU Z, the frequency never leaves 3500mhz. When I disable speed step, everything seems to work just fine. Should I keep speedstep off, or is this not the best fix... I am trying to achieve an overclock that I can keep running 24/7 so I would think speedstep would be useful.

Thank you so much for helping me :)
 
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I don't think SpeedStep is the problem, although some people say you should disable it when you overclock. All it does is reduce the multiplier and voltages when your computer is idle, which is a great thing when you aren't taxing the computer, it will run cooler and waste less electricity. You should however disable Turbo Boost, which might be what's holding your clocks down when you tried running Prime95. Turbo Boost will automatically over clock the cores, but does so depending how many are used. Running all cores will make cause Turbo Boost to run the CPU at a predetermined clock.
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navysealbrian

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Jan 18, 2006
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I don't think SpeedStep is the problem, although some people say you should disable it when you overclock. All it does is reduce the multiplier and voltages when your computer is idle, which is a great thing when you aren't taxing the computer, it will run cooler and waste less electricity. You should however disable Turbo Boost, which might be what's holding your clocks down when you tried running Prime95. Turbo Boost will automatically over clock the cores, but does so depending how many are used. Running all cores will make cause Turbo Boost to run the CPU at a predetermined clock.
 
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