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6700k Oc

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cyro44
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2019/05/23 17:12:59 (permalink)
wondering if i got a not so great chip.
 
z270 ftw k board
6700k
D15 Noctua single fan cooler
dual channel ripjaws 2x8
xmp auto vs setting 1 has no heat difference so i keep it at xmp1
using prime 95 v26.6
 
no oc/xmp1 running small fft = 55-59c
 
4.5 oc, adaptive +25 offset= 70-80c in a 83f deg room
 
I see no reason to try and go higher.  Im new at this, might I be overlooking something?  or do I have a no so great chip?
 
 
 
 
 
#1

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    Cool GTX
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    Re: 6700k Oc 2019/05/23 17:21:52 (permalink)
    What is the room temp ?
     
    Voltage cause Heat
     
    Setting your MB to "Auto" -- sometimes uses too much Voltage (more than actually needed)

    I'm not sure if your Cooler or its Mounting could be some of the issue



     
    You May actually get Much more Help in this section of the Forums:  » Overclocking, Cooling and Benchmarking ---> I'll move this Post
     
     
     
    Home » All Forums » [Computer Hardware/Software] » Overclocking, Cooling and Benchmarking


     

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    #2
    cyro44
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    Re: 6700k Oc 2019/05/23 17:32:46 (permalink)
    Thank you for moving this to the right place
     
    Room is 83degF
    Mobo is set on adaptive not auto
    Noctua coolers are very easy to mount, I recently got most of the dust out there is good air movement through the radiators.
    #3
    Cool GTX
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    Re: 6700k Oc 2019/05/23 18:07:16 (permalink)

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    #4
    bob16314
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    Re: 6700k Oc 2019/05/23 18:51:27 (permalink)
    You need to know that the TjMax temperature for an i7-6700K is 100C..That's the temp that the individual cores will begin to throttle down at if CPU Thermal Protection is enabled in the BIOS, which it is by default, and should be.
     
    It's generally recommended to keep the cores from getting within 10C of TjMax..So for your cores, you should try to keep them from going over 90C during load testing.
     
    It's also very important to know what the Vcore (CPU Core Voltage) is under load testing..You can use CPU-Z to check it (and other things) while running IntelBurnTest (IBT)..There's also the Intel Processor Diagnostic Tool for stability/load testing..IBT will really get it cooking..Watch the cores temperatures closely no matter what you use..I use Real Temp.
     
    You also need to know about Load Line Calibration and Offset Mode and how they affect Vcore.
     
    If you search for 'i7-6700K overclocking guide' you'll find lots of them that you should read before going very far..ROG has some decent guides on Overclocking Core i7-6700K and CPU Core Voltage Offset Mode Overclocking that you can glean the basics from, although your mobo BIOS settings will be 'different but the same'.

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    #5
    cyro44
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    Re: 6700k Oc 2019/05/23 23:00:46 (permalink)
    thank you for the info bob. as coolgtx said i have a large cooler, essentially im wondering if 70-80f @ 4.5 is too hot for such a cooler, i heard of lower temps with my cooler so im a bit confused.  i feel like im getting stock performance, or that I did something wrong.
     
    I get it though, as long as im not reaching 90c Im in the clear.  btw i do use realtemp.
     
     
     
    #6
    Hoggle
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    Re: 6700k Oc 2019/05/24 00:19:01 (permalink)
    It seems like the room temps are very high. You might want to try a profile that works for the summer and one that works well in the winter since you are pretty warm.

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    #7
    bob16314
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    Re: 6700k Oc 2019/05/24 06:44:26 (permalink)
    cyro44
    i feel like im getting stock performance, or that I did something wrong.

     
    Because you overclocked it to 4.5GHz which you might hardly notice because that's only 300MHz higher than the stock 4.2GHz Turbo Frequency of an i7-6700K..If you could get it into the 4.7GHz - 5.0GHz neighborhood without core temps getting too hot under load or needing a high amount of Vcore under load (more than 1.45V), you would probably notice an overall difference.
     
    I would keep Intel SpeedStep and C-States enabled in the BIOS and use a Power Saving (or Balanced) power plan in Windows so the thing don't run full blast all the time when it don't really need to, it will scale up as needed.
     
    80C is fine during stress testing..Is that with IBT?..Your ambient (room) temp is hot and that will greatly affect cooling.
     
    And as always, overclocking anything is at your own risk.

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    #8
    Cool GTX
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    Re: 6700k Oc 2019/05/24 08:20:06 (permalink)
    What Case & case fans can make a big difference in temp also

    If you are unsure of the quality of the TIM or question the proper installation of your cooler --> get some more TIM, remove the heatsink & look at the pattern that the old TIM left on Both the CPU & heatsink.
     
    Any dry TIM or missed (empty spots) & if the heatsink was Not kept level when installing Could be the cause of the temp issue your seeing.
     
    I do not know your experience level, or what TIM you applied
     
    I like MX-4 it is a low cost TIM that plain works.  Any Quality TIM should do, everyone has their favorite flavor.
     
    Make sure the heatsink is kept flat (parallel) to the CPU, tighten the mounting screws in the "X" pattern, 1 - turn at a time,
    working Top Left to Bottom Right, then Top Right to Bottom Left --> in an X pattern

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    #9
    cyro44
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    Re: 6700k Oc 2019/05/24 22:52:52 (permalink)
    thank you for the reply Class ultra.
    80c  running small fft test  on prime 95.
    83f room is too hot? whats is a optimal testing temp?
    to be honest i didn't realize 4.5 isn't even much of an OC   Im better off with no OC =drastically lower temps/ no crashes (from long gaming)
    is system stability better with ram @  xmp 1 ? or complete stock settings?
     
    #10
    bob16314
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    Re: 6700k Oc 2019/05/25 13:15:01 (permalink)
    cyro44
    thank you for the reply Class ultra.
    80c  running small fft test  on prime 95.
    83f room is too hot? whats is a optimal testing temp?
    to be honest i didn't realize 4.5 isn't even much of an OC   Im better off with no OC =drastically lower temps/ no crashes (from long gaming)
    is system stability better with ram @  xmp 1 ? or complete stock settings?

     
    80C running Prime95 is good..83F ambient is rather toasty for electronic stuff..4.5GHz isn't much of an overclock and wouldn't really be noticeable except in benchmark scores..An X.M.P Profile should set your RAM to it's rated speed/timing/voltage/command rate specs instead of the lower/slower SPD specs used for compatibility reasons across different platforms..Sometimes there's more than one X.M.P. profile to choose from to overclock the RAM.

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    #11
    castrator86
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    Re: 6700k Oc 2019/05/27 17:42:10 (permalink)
    bob16314
    80C running Prime95 is good..83F ambient is rather toasty for electronic stuff



    This here. Your ambient temps seem really high. My guess is that your case isn't doing a great job of clearing out hot air to allow your heatsink to do the job. You're going to want to check and set all your fans to push air out of the case. Be sure your heatsink fans are slated to do the same. Your only hope at OC'ing and keeping it stable is getting the temp down at that higher voltage.



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