i7 7700k overheating, ASUS AI Suite 3 showing ~10C less temps all times?

Achint2000

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Click my profile pic to get specs. Overclocks (and some info) here:
CPU: i7 7700k @ 4.7 GHz, 1.3v manual voltage, Level 2 LLC, 110% VRM Current capability

RAM:
GSkill Trident Z 16GB (2x 8GB) RGB DDR4 @ X.M.P 3333 MHz

MBD:
ASUS Strix z270F; 100.5MHz BCLK

Windows64,Prime95 v29.3,build1

I have my build on sort of a self built unstable test bench. So no airflow issues.
Ambient temps are mostly around 25-27C all the time. (Winters, normal and summers, I have an AC)

I got my i7 7700k in April this year, had a deepcool gammaxx400 and arctic silver 5 to cool it (from my old build) but it was overheating, reaching temps as high as 90C on just using handbrake and 95C with prime95 small FFT test (See specs for my overclock). I did try reinstalling the cooler properly with everything done right, still the same results.

About 2 weeks ago, I got Noctua NH-D15s and made totally sure I did every single step properly. Used articlean and a lint free cloth to clean the old compound and installed the new cooler but it had just a 10C difference from the previous cooler, overall on the same OC, and reaches 83-89C (peak) on prime95 small FFT test at the absolute default bios. (Im not using the low noise adapter)

After a while I noticed that ASUS AI Suite 3 shows approx 10C less on CPU temps AT ALL TIMES. Comparing AI Suite temps with:
PC Meter and some win7 gadgets,
Core Temp,
Real Temp,
ThrottleStop,
HWinfo and HWmonitor,
AIDA64 Extreme,
piriform speccy
while stress testing using:
prime95 small FFT test,
core damage,
AIDA64 Extreme system stability test,
Intel Burn Test v2,
and at times encoding a vid in h265 using handbrake (AVX/AVX2)

On searching, a topic said that multiple monitoring programs can "confuse" each other so I tried 1 program at a time, still the same result. Tried running some of them and all of them at the same time, still approximately same results, with AI Suite 3 STILL showing approx 10C less temps.

And, AI Suite 3 temps make more sense as when I compare my temps to other 7700k owners, (Link) mine is heating about 15-20C more...My idle temps (forced max clocks via throttlestop) show around 45-50C in all other temp monitoring programs I tried, and 35-40C in AI Suite 3. And while stress testing, all others reach 95C but AI Suite 3 shows 84C (however it calculates the package power according to the other programs [throttlestop/hwinfo])

I thought I'd throw a 4.8 or 5 GHz OC at 1.35-1.42v vCore and stress test and temps would shoot up a hell lot, would show 95C in AI Suite and over 100C in other programs, and I'd expect it to shutdown if the temps were actually too high.

But I don't wana take the risk with my CPU...
Is there any other way to check if the temps are actually that high?
And if they are that high, what should I do? I already have one of the best air coolers already!
 

Achint2000

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I meant to say 89C on the default BIOS which is 4.5 GHz on my 7700k, still too hot while being cooled by Noctua NH-D15s.

When I try to overclock, currently at 4.7 GHz 1.3v vCore Level 2 LLC and 110% VRM Current Capability, it reaches over 100C on prime95 v29.3 and 95C on prime95 v26.6

And AI Suite 3 reports approx 10C less temps.
Even intel XTU has the same readings along the others.
 

Achint2000

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Currently on Windows 7 Ultimate SP1 x64
Results on Win7 and Win10 are exactly the same.


Initially the BIOS Set OC was 1.300v (adaptive), 47x multiplier/ratio, 100 MHz BCLK
Using AI Suite, I set the ratio to 48x to see how high temps go with prime95 v26.6 build 3, and BCLK to 100.5 MHz
Didn't change the voltages, still 1.300v Adaptive

TPU: BCLK & Ratios
1f6TcD4.png

rldmRkU.png

51UJawz.png

AI Suite 3 Sensors still say 80C; HWinfo, Core Temp, ThrottleStop say around 88-91C

DIGI+VRM
bdWxwsE.png


HWinfo Screen Under Load:
Small FFT Test [prime95 v26.6 build 3]
Note: I'm using some themes which might be unpleasant (been using this one since I was 13, too used-to it.)


hsy9j91.png
 

biglizard

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Apr 1, 2016
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Your vcore is showing 1.344 under load.

SA voltage is high for 3333 ram.

Read though this guide, note IA AC - DC Load Line settings. https://edgeup.asus.com/2017/kaby-lake-overclocking-guide/5/

Having said all of this, I still dont see anything that explains the temp extremes that you are getting.

Are you sure that cooler is mounted correctly? No protective stickers left on cpu coolers base?

If cooler is mounted correctly, with the voltages that I see here then you must have a cpu with a really bad TIM job. A delid most likely will be the only way to get it to run cooler.

The only thing that Asus AI Suite does even kinda well is control fans, I uninstalled it.
 

Achint2000

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All voltages except CPU, are automatically set. My RAM's default freq is 3200 MHz. [F4-3200C16-8GTZR]

That vCore reading is "Maximum" which was high before I started prime95. Under load it's switching between 1.264v-1.280v.

I'm 100% sure that my cooler is mounted correctly. I've seen about 4 vids where people mounted noctua NH-D15 and D15s, properly followed the instructions that came with the cooler. There's nothing I could've done wrong. The heatsink is getting properly hot and throwing out hot air as well.

My other concern is that AI Suite reported temps make so much more sense.
To make completely sure, I'll remove and mount my CPU cooler again as soon as I get some time. (probably would record a video too, tell me if I did something wrong, lol)

I just checked some razor blade DIY 7700k and 6700k delidding guides on YT, and I can't take any risks of damaging my CPU in any way. Delidding without a proper kit is not an option for me.

If after everything, the end issue is a horrible internal heatspread job, I'll just downclock to 4.2 GHz 1.1v and work with it until I can arrange a delidding kit here. (Tell me the website from which I can order a proper delid kit online. I'm from India.)
 

Achint2000

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Ok, I've reinstalled the CPU cooler again. properly too. Just didnt make a proper vid of it. Also figured out what's up with AI Suite 3.

AI Suite 3 uses the integrated motherboard sensors from nuvoton, not main CPU sensors (DTS i think?)
Which is why AI Suite shows different temps than all other temp monitoring programs.
I confirmed this from HWinfo.

I tried to stay at 4.5 GHz with a forced lower voltage (1.2v) but it just doesn't stay low, automatically goes 2.5v on level 2 LLC. Temps hit 80C on prime95 v26.6, core damage and handbrake.

Though the temp differences are minimal from before, even after reinstalling my NH-D15s AGAIN, I did change my final overclock to this:
BCLK Freq = 102.1 MHz
Core Ratio = 48x; vCore = 1.330v; LLC = Lvl2
DRAM Freq = 3333 MHz XMP; nearing 3400MHz with BCLK

During prime95 26.6 small FFT/ coredamage / handbrake, temps go as far as 97c peak and stay around 95C under full load.
On slight load at max frequency, temps are jumping around 40C-51C, and maximum temps with under 30% CPU usage are 67C.

With my bad luck, I think I can't have a good OC with low enough temps, so I'll risk this and make my peace with the fact that my 7700k will always have horrible temps regardless of the quality of cooling or overclock I'm having.

And even if my cooler's fan stops working (i was retarded enough to pull the fan out for this under prime95 load), for about 3 minutes, temps dont cross Tj Max (100C) under full load so I think im good.

Any other ideas to lower temps besides delidding, let me know.
Thanks.
 

redfaction95

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Disclaimer: Not a "pro" OCer, never pushed the limits, just sharing the experience.
Back in 2011 or 12, when the 2500k was released, I got it and the situation of temps with it was just as yours, when it was not OCed, the temps were totally in the safe zone but higher than they should be and when OCed, same story 90C 95C etc. and one day it died, then on same board same heatsink everything same I installed the new 2500k that I got as a replacement and kaboom, 15-20C difference straight away in nearly every situation. I would like to say that I think you are technical enough and probably have done enough troubleshooting and resolving so unluckily it might just be a bad chip.
PS I suppose both of us have the same ambient temps since I am from Pakistan and one thing that I would like to ask is, what are your temps load and idle at factory defaults for motherboard, like no CPU/RAM OC, everything at total stock clocks? If that is higher than it should be then it is your chip, if it is not then might be motherboard can not handle the overclocks very well.
 

Achint2000

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Well. The last time I tried resetting BIOS to default, loading into Windows 7 and stress testing, it was still overheating. Everything completely default, reaching 80C, peak 85C if I remember correct.

I'll even try that one last time.
Yes, I do believe my luck is horrible enough to have this bad a chip.

I'm using all this on an ASUS Strix z270F, which I think is good enough to handle it.
Again, when I get some time, I'll reset my BIOS to default again, check temps and reply here.
 

Achint2000

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Ok, this seems to be an interesting result. On setting the default BIOS again, I noticed that ASUS still has alot of it's optimizations and a ridiculously high voltage even at the default bios (4.5GHz).

At default BIOS, vCore was going 1.39-1.4v and VID still says 1.4v, (what the hell?)

Many times it randomly sets LLC (load line calibration) to an extremely high level at the default frequency (once it set it to Lv6 and temps went off the roof to 99C in a second) And the multicore optimizations, etc.

I did some very quick changes to the BIOS with the purpose of keeping it manually default, so quick that I can't remember them.

I remember for sure is setting everything CPU related from Auto to the actual default values, and one major thing which made the most difference, forcing core voltage to 1.240v static (under adaptive, it was still too high)

Now, temps at default BIOS are PEAK 68C with prime95 v26.6 small FFT test, core damage, handbrake and AIDA64 stability test, at then a fully stable 4.5 GHz 1.22v. On monitoring the actual vcore from AIDA64 CPUID, voltage drops to 1.152-1.184v when under full load.

And at last, prime95 v29.3's small FFT test take the temps to a peak of 74C with an average of 71C.

This is perfect! I'll instantly go and profile these BIOS settings of mine, and take some pics to update here.
I'll also try OC'ing with these settings, see if I can reach my previous OC without that much heat.
 

Achint2000

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Back with some OC'ing.

47x multiplier
3333 MHz XMP enabled with multicore enhancement disabled
101.5 MHz BCLK Freq. = 4.77 GHz CPU; 3375 MHz RAM
1.3v; Lv2 LLC; 120% VRM Current Capability
EPU Enabled, Active Frequency Mode Enabled (apparently these reduce voltage)
Under Load vCore = 1.27v, 1.3v peak

Getting 87C peak; 82C average on prime95v26.6 smallFFT/coredamage/handbrake
I tried going to 4.8 GHz but it gets either too hot (90C peak) and if i try lowering vCore, it gets unstable.

Tomorrow I'll try the complete default BIOS again and see if higher voltage or ASUS optimizations have any major performance difference.
 
Handbrake takes advantage of the newer AVX instructions; therefore testing with the current version of P95 is better. When comparing temperatures with others, you need to know what cooler and case they have (a quiet case keeps the CPU much hotter than a case designed for maximum cooling), what and how many fans are installed and their ambient temperature. You need to compare with another identical system at the same ambient temperature. My CPUs run warmer than the average simply because I prefer quiet cases with minimal airflow.
 

Achint2000

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I've had this CPU and 2 different air coolers since April this year. With all the OC's i tried, ambient temps seem to have almost no effect on the CPU temps. As I mentioned before, my room is mostly around 25-27C even during summers as I have an AC, and Noctua NH-D15s has a huge heatsink so about 5C change in ambient temps wont matter as I dont have a case. All dissipated heat doesn't stick around in a small box.

Here's how my build is: [This photo is from April, when I didn't have a Noctua NH-D15s]
NUYzryw.jpg