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Turning off features before overclocking

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  • Overclocking
  • Intel i5
  • Turbo Boost
Last response: in Overclocking
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a b K Overclocking
February 26, 2014 3:16:46 PM

I have an I5 2550K. I feel like lately it just isn't the powerhouse it use to be so I want to overclock it. I disabled turbo boost technology but I can't remember if there is anything else that has to be disabled. For some reason I thought I remember someone saying Intel C1 E/ C3 state need to be also turned off?

More about : turning features overclocking

a b K Overclocking
February 26, 2014 3:52:57 PM

If there is any video stuff on the chip you can turn it off, also hyper threading if you're going for pure speed on a single core. Your C states shouldn't really matter if you're not using turbo but you can disable them if you find the settings in your bios. EIST would be another one you could disable, I don't know why some people would not want the processor to be able to reduce speed and temperature during idle, but do what you like. All the C states and EIST do are reduce voltage/speed/temp when the cpu isn't under load.
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a b K Overclocking
February 26, 2014 4:06:50 PM

Ok thanks. So the most important thing is the turbo boost I guess. I mean you don't want to be at 4.4 GHZ and have it boost even more. I started overclocking but I have hit a wall at 4.3 GHZ. That's good but I would like to get to 4.5 GHZ. I'm thinking I probably need to increase the voltage .1%. The question is what do I want to increase the CPU Vcore or the PLL voltages?
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a b K Overclocking
February 26, 2014 6:21:01 PM

Intel says the max pll voltage should be 1.575 and increasing it too high is a good way to kill your cpu. Read up on it if you want to increase it, but it's main purpose is to control fsb speed. You should increase vcore but keep an eye on your temperatures.
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a b K Overclocking
February 26, 2014 7:05:51 PM

I increased it from 1.3 to 1.355 and I'm leaving it there that is one notch up from stock on the motherboard. I got it to 4.7 stable and it is running fine. The thing I am kind of worried about though are the temps. I'm using HW Monitor and when stress testing it with Prime 95 it is giving a reading of 72-82 degrees across the individual cores with an overall package temp of 83 degrees. I know these CPU's can go up to 90 degrees before shutting down but is that to hot. I mean it seems to hot but then again in reality no game or program will stress a CPU to the degree of prime 95. It is the ultimate torture test.
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a b K Overclocking
February 27, 2014 8:03:37 AM

Yes that's exactly right, nothing you run normally will probably ever stress it that much. So if you're stable and the max temp is 83 I'd call that acceptable. Check under normal load for awhile and make sure it's not pushing past the low 70's and if not you're fine. Prime95 is just to test the worst case scenario and if you're stable there after a few hours you should have no problems in games.
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a b K Overclocking
February 27, 2014 8:04:55 AM

Yes that's exactly right, nothing you run normally will probably ever stress it that much. So if you're stable and the max temp is 83 I'd call that acceptable. Check under normal load for awhile and make sure it's not pushing past the low 70's and if not you're fine. Prime95 is just to test the worst case scenario and if you're stable there after a few hours you should have no problems in games.
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