CPU Temperature concerns

[Elthrael]

I recently got a PC with the following specs

i7 8700k
ASUS PRIME Z370-A
G.Skill Ripjaws 16GB 3200MHz CL16
(still waiting for gfx card, using integrated Intel gfx right now)
Fractal Design R6 Tempered Glass case
CoolerMaster MasterLiquid 240 AIO watercooling system

Idle temperature is OK (30-32°C), but when I use CPU-Z to stress-test my CPU and CoreTemp to measure the temperatures, it reads temperatures up to 90°C - as far as I know, that's entering "dangerous" territory.

I have three 120mm case fans (two front, one back) set to run at 100% when the processor reaches 60°C and a closed-loop AIO watercooler with two 120mm fans (top mounted), also set to run at 100% when the processor reaches 55°C. The CPU isn't overclocked - I am, however, using it as the graphics card on an ASUS ROG Swift PG279Q at 1440p until my 1080 Ti/2080 arrives (haven't decided yet). I've compared some tests on the web and folks are getting around 80°C at full stress. I feel like I shouldn't be running that hot with 3 fans and watercooling.

Is the fact that I'm using the processors integrated graphics contributing the extra 10°C? Or is something wrong and I should check out my cooling system?

[Bad 💀 Motha]

Yes, best to never connect any Pumps or Rad Fans to any controllers. These are best controlled directly by the Motherboard via PWM

[tacoshy]

Read into Turbo Boost:

https://www.makeuseof.com/tag/forced-induction-intel-turbo-boost-works-technology-explained/

Just because it shows all cores at 4.6 (actually 4.7) it does not mean it is an o wedlock for all cores because the other cores going to idle in a low power state where the literally can't do anything. You still lose the core being able to do workload.

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

tacoshy eredeti hozzászólása:

Read into Turbo Boost:

https://www.makeuseof.com/tag/forced-induction-intel-turbo-boost-works-technology-explained/

Just because it shows all cores at 4.6 (actually 4.7) it does not mean it is an o wedlock for all cores because the other cores going to idle in a low power state where the literally can't do anything. You still lose the core being able to do workload.

I have 5 different i7 computers through different era's of time, all the way from the very first i7, up to x99 ones from 2015. They all run with all cores active with max turbo boost at all times. Even my pair-of-two-i7-cpu's server runs idle in windows @ 3.7 ghz at all times (max turbo for those processors) on all cores at all times and -never- drops speed even for a second, not even on any one of it's 12 cores. And those are locked xeons even.

I know how to watch CPU-Z. I know how turbo boost works. It's sounding more like -YOU- probably don't even own any i7 chips to even know personally how to make them work correctly.

[Bad 💀 Motha]

Impending Rentacle Tape eredeti hozzászólása:

tacoshy eredeti hozzászólása:

Read into Turbo Boost:

https://www.makeuseof.com/tag/forced-induction-intel-turbo-boost-works-technology-explained/

Just because it shows all cores at 4.6 (actually 4.7) it does not mean it is an o wedlock for all cores because the other cores going to idle in a low power state where the literally can't do anything. You still lose the core being able to do workload.

I have 5 different i7 computers through different era's of time, all the way from the very first i7, up to x99 ones from 2015. They all run with all cores active with max turbo boost at all times. Even my pair-of-two-i7-cpu's server runs idle in windows @ 3.7 ghz at all times (max turbo for those processors) on all cores at all times and -never- drops speed even for a second, not even on any one of it's 12 cores. And those are locked xeons even.

I know how to watch CPU-Z. I know how turbo boost works. It's sounding more like -YOU- probably don't even own any i7 chips to even know personally how to make them work correctly.

What are you monitoring with exactly?
CPU-Z doesn't count, you can't see "Cores" in that app.

[TehSpoopyKitteh]

Impending Rentacle Tape eredeti hozzászólása:

The Spoopy Kitteh eredeti hozzászólása:

Those are still completly unssafe and abnormal temperatures. I am OCing my Core i7-6700K at 4.4GHz 24/7 365....and it doesn't even reach 80C...let alone anything above that, under gaming load. Note I am not using an AIO. Just a massive Heat Sink and fan system that barely leaves me room for any side case fans xD

The highest I have seen min go at that speed during a stress test is 75C peak, 70 average on full core use, and 65C and 70C peak with multi-threeaded modes.

See Intel specifications for the 8700K here: https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz And scroll down to "Package Specifications" and then read where it says "TJUNCTION 100°C"

Now, compare that to your processor, the 6700K: https://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz Then scroll down and see Package Specifications where it says "TCASE 64°C".

So technically, any temperature above 64c for your 6700K -IS- dangerous, and can damage your processor. And 80c or 90c would definitely be extremely dangerous, for your processor.

However none of this is true for the 8700K. For the 8700K, such temperatures are completely normal, and in fact completely safe and harmless.

Also the 8700K is a 6-core chip and your 6700K is a 4-core chip. So of course the 8700K is going to run hotter than your chip.

Temperatures of that nature are not dangerous for my processor at all. Anything above 90C is where I should worry. Why did you go point to the Intel Ark page to show the CPU temperature range? It isn't even listed there.

Anyway, here is proof that I am OC'ing to 4.4GHZ

https://steamuserimages-a.akamaihd.net/ugc/960846210292322519/8A9F69A915A3DBB74C9D1AA4433704B812A4D331/

Here is an SS of CPU-Z to confirm that OC setting.
https://steamuserimages-a.akamaihd.net/ugc/960846210292327910/B8721A4D33713A2389119D1A781D485093AFFA8B/

Here is the CPU-Z validation.
https://valid.x86.fr/xpau66

[tacoshy]

Seems you not have understand a thing because you can't read or understand what you read. Turbo boost many boost the frequency to all cores bit cores are disabled so if with Turbo boost of 6x 4.7 GHz means only 1 core will actually run in performance. The other are in a low power state during that. Means you have then only high single core performance but loose your multi core performance for that.

[TehSpoopyKitteh]

tacoshy eredeti hozzászólása:

Seems you not have understand a thing because you can't read or understand what you read. Turbo boost many boost the frequency to all cores bit cores are disabled so if with Turbo boost of 6x 4.7 GHz means only 1 core will actually run in performance. The other are in a low power state during that. Means you have then only high single core performance but loose your multi core performance for that.

You could at least quote the person you are replying to mate. Makes it hella confusing sometimes.
xD

[Elthrael]

Bad_Motha eredeti hozzászólása:

Yes, best to never connect any Pumps or Rad Fans to any controllers. These are best controlled directly by the Motherboard via PWM

Only thing is, my case fans are 3 pin fans and the MoBo has 4 pin headers. Is it still possible to transfer the case fans from the hub to the mobo?

[_I_]

yes

3pin is power/ground/sense
4pin adds the pwm for speed control

with a 3pin fan plugged into the 4pin header it will run at full speed, unless you set bios to run it as a 3pin voltage control instead of pwm

[Bad 💀 Motha]

^ this

The rest of all your fans should be fine connected to said controller. But for the Pump and any Fans you deem important to the CPU (i.e. those Radiator Fans) I'd connect them to Motherboard Headers to ensure they use the PWM method and that should they fail in any way, like low RPMs, or dead altogether, that the Motherboard warns you. Which is basically what those 2x White Headers is suggesting on your Board. Headers labeled AIO_PUMP and CPU_FAN; if these are failing or very low RPMs, the system will warn u @ BIOS POST and not go any further. This is help ensure you are aware since these headers are of most importance. But that feature doesn't work as it should if you aren't using them properly.

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

Bad_Motha eredeti hozzászólása:

What are you monitoring with exactly?
CPU-Z doesn't count, you can't see "Cores" in that app.

I can also use hwinfo and see the same thing. I can't understand why anyone would question this. Anyone that owns an Intel I7 knows you can run max turbo with all cores active on any i7 chip. And anyone that owns an I7 that's -NOT- doing this is starving themselves of fully utilizing their chips. It's super simple just like I said, disable speedstep, and C1, C2, C3 in bios but leave C6 on and turbo on, everything else auto, then F10 and go enjoy. Windows 10 requires we use "Maximum performance" power plan too though.

[Elthrael]

Bad_Motha eredeti hozzászólása:

^ this

The rest of all your fans should be fine connected to said controller. But for the Pump and any Fans you deem important to the CPU (i.e. those Radiator Fans) I'd connect them to Motherboard Headers to ensure they use the PWM method and that should they fail in any way, like low RPMs, or dead altogether, that the Motherboard warns you. Which is basically what those 2x White Headers is suggesting on your Board. Headers labeled AIO_PUMP and CPU_FAN; if these are failing or very low RPMs, the system will warn u @ BIOS POST and not go any further. This is help ensure you are aware since these headers are of most importance. But that feature doesn't work as it should if you aren't using them properly.

That's the way I have it setup right now

radiator fans on CPU
AIO pump on pump
case fans on case controller

It might just well be a bad cooler, I guess, and by that I don't mean faulty, but not-good-enough. I'll wait for the GPU and see what happens with the temperature in new games. If it functions well enough, I think I'll just leave it.

I'm really disappointed though because I had watercooling installed to have some "headroom" with the temperatures (I've been using a laptop for 6 years now and I know how performance dives if the system is overheating). and perhaps even have some room to overclock past the 4.7GHz boost. The reason why I chose this cooler was because it was the only one they could get at the time for that price and the reviews seemed good - I live in Slovenia so PC parts aren't really in abundance and anything you want for a build you have to wait for the stores to order the item. In short, I'm pissed off because I thought I was paying for that extra 5% piece of mind only to fall right into "meh".

...on the other hand, I see videos like this https://www.youtube.com/watch?v=Vdf0FVQogfE and I can't help but wonder if I'm just being overly anal and I'm fine. Which is what Impending Rentacle Tape said in the first place, lmao.

Thanks to everyone for your help so far, by the way.

[[☥] - CJ -]

Have you checked to see if the block is making contact with the CPU?

Checked to see if there is an adequate amount of paste on the CPU?

Also, which way do you have the AIO's fans facing? as intake or exhaust?
-

And you arent being overly anything, theres simply something wrong with that AIO.
And thats the sort of issues you accept when using an AIO because ALL AIO's run the risk of being faulty.

But in this case its possible that AIO just sucks.

[Elthrael]

☥ - CJ - eredeti hozzászólása:

Have you checked to see if the block is making contact with the CPU?

Checked to see if there is an adequate amount of paste on the CPU?

Also, which way do you have the AIO's fans facing? as intake or exhaust?
-

And you arent being overly anything, theres simply something wrong with that AIO.
And thats the sort of issues you accept when using an AIO because ALL AIO's run the risk of being faulty.

But in this case its possible that AIO just sucks.

The AIO fans are exhaust. Front fans are intake, rear fan exhaust.

I admit I haven't disassembled the pump to check if the block and CPU are making proper contact and that there is enough paste. I didn't put it together so I'm a bit reserved towards pulling it apart, I didn't want to mess anything up since I've only ever dealt with air coolers. I think I might do it tomorrow though, just to be extra sure.

[[☥] - CJ -]

Yeah thats definitely something to look at before you do anything else, just be careful.