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I have a brand new build; EVERYTHING NEW. i7-7700k is running at stock speeds. I have the RAM set to XMP for DDR4-2666. Motherboard is Asus Maximus IX Hero Z270.
I have found that the i7-7700k reports a momentary (a second or less) temperature spike +25 > 35 degrees Celsius anytime a program is opened, a webpage is opened, a background app runs etc. The temperature blip cascades through the cores in random order; not the same every time. This causes my heatsink fan to constantly cycle up and down. Temperatures otherwise report as steady, normal increases. Peak temperature under Prime95 blend test is 71 degrees Celsius.
Attempted solutions:
I have re-installed my heatsink and thermal paste with no change.
I have tried to manually set my fan speed in the bios. The only setting that avoids this issue is setting the temperature / fan at a constant (and loud) 80-100%. I've tried PWM and DC mode.
I have found a few user reports elsewhere on the web, all reasoning that it's just the way it is. I don't accept that. Opening a folder or browser should not spike temps +30 degrees. Not only is the fan cycling annoying, it puts undue stress on my fan; possibly shortening its lifespan.
What's the answer, if any? RMA?
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Hello Everyone,
We appreciate the feedback you have provided, and your patience as we investigated this behavior. The reported behavior of the 7th Generation Intel® Core™ i7-7700K Processor, showing momentary temperature changes from the idle temperature, is normal while completing a task (like opening a browser or an application or a program).
In our internal investigation, we did not observe temperature variation outside of the expected behavior and recommended specifications. For processor specifications, please refer to the https://ark.intel.com/products/97129/Intel-Core-i7-7700K-Processor-8M-Cache-up-to-4_50-GHz Intel® Core™ i7-7700K Processor Product Specifications.
Most motherboard manufacturers offer customizable fan speed control settings that may allow for smoother transition of fan revolutions per minute (rpm). Please consult your motherboard manufacturer's manual or website for instructions on how to change default fan speed control settings.
We do not recommend running outside the processor specifications, such as by exceeding processor frequency or voltage specifications, or removing of the integrated heat spreader (sometimes called "de-lidding"). These actions will void the processor warranty.
Kindest Regards,
Ronald M.
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Here is the test with OCCT 4.5.0, now it is swowing the right Voltages
CPU Core/Cache Voltage set to Manual Mode, Additional Turbo Mode CPU Core Voltage to 1.25, Offset Voltage to 0, Load Line Calibration to 5.
The one hour test you ask me it is running as soon as it is done i will post.
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I appreciate all these tests you have done... sorry to ask for another, but can you run it with the LARGE data set.
The test you have been running have all been small, where me and Ra were doing larges. The large test actually touches more of the system than just the cpu so i suspect it will have a little different results.
Your Voltage line is so much more constant that ours and I wonder if that has to do some with the data set being used. Could just be the VRM's in yours are just much better in general.
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As soon as the one hour test it is done i will run the one you want, do you want me to run it for 30 minutes or one hour?
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30 minutes should be fine. It just gives us a comparison of large vs small. Thanks again for this. Sorry for all the trouble we are putting you through.
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That looks very good! I suggest you run it for an hour ... That way we can be very confident that the problem is with our boards ... Possibly a fault on the Prime range.
I really appreciate you doing this .. I've been hanging my head over this for weeks now and this is the first bit of clear sky (as well of course as the tests that TG has done).
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Too late i ran one hour :-) in a few minutes i will be posting the results.
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Here is your 1 hour test
CPU Core/Cache Voltage set to Manual Mode, Additional Turbo Mode CPU Core Voltage to 1.25, Offset Voltage to 0, Load Line Calibration to 5
TGrable
Here is your test, (Large data set)
CPU Core/Cache Voltage set to Manual Mode, Additional Turbo Mode CPU Core Voltage to 1.25, Offset Voltage to 0, Load Line Calibration to 5
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Well that answers it. Looks like the blips are an issue of the Prime's. Thank you for taking the time to do these.
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Anytime.
If you need some more test don't hesitate to ask.
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Really great ... many thanks ZZ, you've been a great help! At least we can talk to ASUS now with some solid info.
BTW ... I think this is a good setting for you for overclocking. Without speedstep and c-states on you won't get the CPU going from zero to 100 all the time and so your temperature spikes should also be less. If you have the time it would be interesting if you went back to your best overclock, change the settings to the ones you have now (but with the voltage you had before) and then see if you can reduce the voltage and still have a stable OC.
Speedstep etc., is only really useful for mobile IMO. It only saves around 10W at idle, at the expense of big clock swings.
Cheers
Robert
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Isn't disabling Speedstep the same, as using high performance power plan?
CPU clock stays constant all the time.
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to further our discussion...
i did a further test @ ASUS Optimised Defaults (Stock)...
computer running perfectly - i can throw everything @ it - perfect, i wonder how many BSOD's you have had Robert...
could be a feature of Z270 chipset - could be a feature of OCCT...
HX850i PSU...
craig
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Hi there.
I always have speedstep and c-states disable when OC the only thing i don't use because i hate it is LLC
Links
Isn't disabling Speedstep the same, as using high performance power plan?
CPU clock stays constant all the time.
That's right, it's called:
Static Overclock.
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Hi Craig ... I'm considering the TUF Mark 1 as a replacement for my Prime, so I'm glad to see that's the board you have.
Could you run the same test that we have been running? That is, with voltage set to Manual, LLC to 5, either with C-States and speedstep disabled, or Windows set to High Performance power plan. With these settings it's easy to see what is happening, and also easier to compare with our results.
There is a possibility that the TUF motherboard has the same issue as the Prime boards.
Cheers
Robert
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Out of interest ... why do you hate LLC? At lower settings, like 5 or below on the ASUS boards, it stabilises the voltages much better than Auto mode (at least on the Prime Z270-A).
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hi Robert (&TGrable),
it is very obvious that you are trying to apply an overclock to an existing overclock...
just look @ OCCT & it shows a 7+% overclock @ stock 7700K settings...
obviously, we choose 7700K because it is 'best of class' (a 'beast' when set up correctly)...
i have zero interest to do your proposed test Robert - i have everything enabled & getting great results - & i have been using computers for over 40 years - i still say good software is the key, layered upon good hardware...
Robert, there is a very simple test for you - return your ASUS Prime mobo to optimised defaults & i am sure you will find exactly the same 'blip dips' as you are complaining about, within OCCT test as i have provided...
i will be very interested in your conclusions...
once again - you are looking for an overclock of an existing, native 7700K overclock...
cheers, craig
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Hello Craig,
ASUS believes that there is in fact a problem with both of my motherboards (the Prime Z270-A). What they have not confirmed yet is whether or not this is a problem with all of the motherboards in this series or whether there is a bad batch of boards; they also currently do not have a solution. So this is not a case of overclocking over overclocking as you suggest (but thank you for your input).
In fact the same issue is present at 4.2GHz, so the issue has nothing to do with overclocking.
I appreciate that you do not wish to try out the test, but hopefully someone else with a TUF Mark 1 will, as it would be very useful to know if the problem exists on this series as well (and also I'm proposing to replace my Prime with a TUF, so it would give me some confidence that I won't just hit the same problem all over again).
Cheers
Robert
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I don't like LLC just for the simple fact that in some High End Motherboards it tends to cause instability and in some scenario instead stabilise the voltages it makes it worst.
And for you craigeaglefire.
No offense but in your post you sounded so arrogant, if you're getting great results why are you getting blip dips?
I am so lucky because i decided to skip the Z270 series.
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hi Robert,
time to chill out - i would absolutely appreciate if you would run the OCCT test @ 4.5 stock, as i have done (& post vcore/temp results)...
also, on this forum you have threatened to legally sue Intel - i am now wondering if you wish to now further legally sue ASUS...
i also asked you how many BSODs you have had over the past few months - your answer would be very interesting...
the TUF Mark 1 works really well - with a 5 year warranty - which i intend to honour/keep (fair play principle) - it also has the best audio i have ever had on any computer - with Bose Companion 20 micro speakers...
i am not sure of the 'blip dip voltage "problem"' you are raving about - do you have any knowledgeable science to back up your theory?
sounds like a 'storm in a teacup' to me...
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well i guess ZeoxZariX - you can tell us all what 'blip dips' actually are - with all your knowledge...
my Z270/7700K i now realise is running perfectly!
cheers
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