Underclocking i7 4770.

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austenwhd

austenwhd

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I have a Gigabyte H81M-S1 (SOCKET 0) board. I wanted to know,just for the sake of knowing, what and how to underclock my CPU.

And, what will happen if i pull it down to say 3.0 Ghz (it runs at 3.4 Ghz originally). Will it crash or temperature will lower or power consumption. Are there any benefits of doing it?
 
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JOOK-D


The only thing that would fry your CPU is overclocking/overvolting or temps. Doing this would reduce clock speeds/voltage/temps, so I don't think you're going to fry anything. Then again, I've never done it myself. A quick google search might help you out there.

Turbo mode is where your CPU automatically clocks over its standard clock (3.4) when it's met with more strenuous work to a higher clock to try and cope with the workload (3.9).

Also I just noticed that you have a non-k series CPU, so your CPU multiplier may not be unlocked which would make underclocking more difficult. If you're unable to change your...
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JOOK-D

JOOK-D

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I'm not 100% sure with intel CPUs/boards, but there should be a multiplier option in your BIOS which is in relation to your Bus Speed. If you turn down the multiplier it will drop your clock speed.

You will see reduced performance and reduced temps/power consumption. Especially if you drop your voltages too. If there's a turbo option you could turn that off too.

Again, I'm quite inexperienced with intel (been a while since I built one for myself) so some of this may not apply.
 
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JOOK-D

JOOK-D

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The only thing that would fry your CPU is overclocking/overvolting or temps. Doing this would reduce clock speeds/voltage/temps, so I don't think you're going to fry anything. Then again, I've never done it myself. A quick google search might help you out there.

Turbo mode is where your CPU automatically clocks over its standard clock (3.4) when it's met with more strenuous work to a higher clock to try and cope with the workload (3.9).

Also I just noticed that you have a non-k series CPU, so your CPU multiplier may not be unlocked which would make underclocking more difficult. If you're unable to change your clocks, I guess you could just disable turbo and set it to Power Saving in Windows power settings, if you're concerned with power usage.
 
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austenwhd

austenwhd

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Oh, ok, thank you for your informative reply. I am kind of curious about this subject. I think i will try and do underclocking (even if it's somewhat risky or impossible), just for the sake of knowing what happens. I have seen my clocking settings does have the option of going down in speed, i will try it.

Thank you.
 
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PhilTroy

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Hi!

Would you please email me your rsult for underclocking? I wanted to purchase an i7-4770t but they have disappeared so I am wondering if underclocking the i7-4770 will give same results.

Phil Troy
phil@philtroy.com




 
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austenwhd

austenwhd

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@Phil Troy, first of all, i don't know why would you want to underclock your CPU, my reason was the hot climate of my city, even with a EVO cooler, and the fact that i run my PC under 80+ load for more than 15+ hours a day, so i need to keep the power and heat under check. I didn't underclocked my CPU, after all, i am using a discrete GPU so i disabled iGPU and also the Turbo Boost, as a result of which, my CPU runs at least 5 degrees cooler and consumes much much less power. I am not a believer of overclocking CPU. especially when it is under the sort of stress i put it through. 4770 is already fast enough, it is faster than a non-overclocked 4770K or any other variation of the this same CPU, so i recommend go ahead and buy 4770, it's best option for non-overclocker.
 
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PhilTroy

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The reason I am thinking about underclocking is that I would really like to ensure that my power consumption stays below 45 watts TDP so that the machine is quieter. A few years ago I bought an i3 t model (for my son) and it was pretty much amazing how quiet it was. I've been looking for either an i7-4770t or an i7-4790t (better) but the few that I have found are more expensive than the non t models. So if I could underclock the i7-4790, or somehow otherwise control power consumption (under Linux).

Am I correct in understanding that I would need the i7-4790k to underclock it?

Phil

 
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austenwhd

austenwhd

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The reason I am thinking about underclocking is that I would really like to ensure that my power consumption stays below 45 watts TDP so that the machine is quieter. A few years ago I bought an i3 t model (for my son) and it was pretty much amazing how quiet it was. I've been looking for either an i7-4770t or an i7-4790t (better) but the few that I have found are more expensive than the non t models. So if I could underclock the i7-4790, or somehow otherwise control power consumption (under Linux).

Am I correct in understanding that I would need the i7-4790k to underclock it?
Click to expand...

As far as i know, going as low as 45 watts is impossible. i7-4790k has a TDP of 84 watts, and it just can't go that low. Besides, the whole purpose of buying an i7 is to get maximum performance out of one of the higher priced chip, if you want low power consuming chip buy a low power consuming chip. If you want quieter PC even with i7 CPU, try liquid cooling.
 
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austenwhd

austenwhd

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The exact BIOS settings for Mobo differs from brand to brand and even model to model in the same brand, but generally there are three modes you get to choose from, choose power saving mode. Turn off Turbo mode and if you have a dedicated GPU, turn off integrated graphics on CPU, as well. Your CPU basic power draw and temperature will remain at it's least with these settings, nothing too drastically different though.
 
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