i5 6600k Temperature

[Gallarian]

Hey guys,

Got my new Skylake system up and running, and to cool my i5-6600k @4.5ghz, I've installed a Corsair H100i with 2x Corsair SP120 Quiet fans.

My case doesnt have enough room to mount the radiator fans inside, so they're currently pulling air through the top vent to cool the radiator, with the air the being sucked out the back of the case with a single 120 exhaust fan.

My question is; are these temps normal?

Idle: 16.3 - 19.5 C
Load (wPrime /Cinebench): 38 - 45 C

Obviously, these are very cold temps. But that's what is concerning me; are they too cold to be true? Every review of the 6600k I can find shows much warmer temps, and the same is also true for the H100i reviews.

Could it possibly be that the motherboard/CPU temp sensors are reading them wrong?

(Monitoring software: MSI Afterburner, Corsair Link, CPU-Z, HWMonitor, RealTemps)

Idle Monitor Screenshot:

 

[Karsten75]

What is your ambient (room) temperature? The observed processor temperatures must be higher by a minimum of 5C or so. That's the "thermal gradient".


Having said that, indications are that Skylake will run cooler than Haswell, Haswell Refresh, and Devil's Canyon since some voltage regulation has been moved off the processor chip.

Also, Intel spent considerable engineering effort in improving thermal management.

 

[Gallarian]

What is your ambient (room) temperature? The observed processor temperatures must be higher by a minimum of 5C or so. That's the "thermal gradient".


Having said that, indications are that Skylake will run cooler than Haswell, Haswell Refresh, and Devil's Canyon since some voltage regulation has been moved off the processor chip.

Also, Intel spent considerable engineering effort in improving thermal management.

I don't have any thermal instruments to get a reading of my ambient temperature (I live in the UK, thermostats and AC are not common place here).

If my current room temperature was 12 C or below (which is likely), would that mean the CPU temps listed would be about accurate?

Here's a complete list of my current system temps (according to Corsair Link) with only this page open:

CPU: 16.1
GPU: 26
H100i: 20.4
Mobo: 25
SSD: 26

Anything jump out as strange?

 

[CompuTronix]

CPU: 16.1
GPU: 26
H100i: 20.4
Mobo: 25
SSD: 26

Anything jump out as strange?

(Monitoring software: MSI Afterburner, Corsair Link, CPU-Z)

16C is probably below ambient temperature, which is not possible.

Use Real Temp as it was developed specifically for Intel processors: - http://www.techpowerup.com/downloads/2089/real-temp-3-70

Full load: 38 - 45 C

Please define "Full load".

The reason why there are so many conflicting reports of different temperatures, is that everyone tests their rigs with different stress tests, clock speeds, Vcore, coolers, ambient temperatures and measuring utilities that read three different types of processor temperatures.

Add to that the fact that almost no one bothers to look up Intel's specs, which aren't written to make any sense to anyone anyway. Then there's the term "load" that gets tossed around like gorilla poo in a cage. Load? Which load? What load? Load is a very subjective term.

Applications, rendering, encoding, gaming, web browsing, downloading and virus scanning are partial workloads with fluctuating temperatures, which aren't suitable for thermal testing or comparing temperatures, but they're great for endless speculation and debate. Add a graphics card that recirculates heat into your case, and your perspective is lost among all the variables.

The only way to make sense of this mess is to test your rig using a methodology that reduces the variables to the lowest common denominators. The Intel Temp Guide explains how to do it in Section 13: - Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

CT

 

[Gallarian]

16C is probably below ambient temperature, which is not possible.

Use Real Temp as it was developed specifically for Intel processors: - http://www.techpowerup.com/downloads/2089/real-temp-3-70

Please define "Full load".

CT

1) Just checked my heating system, the display shows 8C. We Northerners don't feel cold!

2) RealTemps shows these figures:

3)Full load in this context: 100% CPU usage during benchmarking (Cinebench and wPrime).

 

[CompuTronix]

8C is only 46.4F! Really ??? You're running a very chilly 14C below Standard Ambient, which is 22C.

Our Forum Members and readers are certainly not accustomed to seeing ambient temperatures so low.

If you add 14C to "normalize" your idle temperatures, they would be 29, 32, 30, 22.

Which version of Prime95? 26.6?

Which Torture Test? Small FFT's?

 

[Aladdad]

is your PC in a freezer?

 

[Gallarian]

is your PC in a freezer?

Haha, nope, Linus proved that doesn't work!


So it seems fair to say that those temperatures just cannot be true? In that case, why is every monitoring software saying thats what they are?

 

[Gallarian]

(See original post for screenshot update)

 

[CompuTronix]

Gallarian,

All computer temperatures go up and down with ambient, so your idle temperatures are quite plausible.

Please run Prime95 version 26.6 Small FFT's for 10 minutes so we can see your load temperatures on Real Temp.

CT

 

[Gallarian]

Gallarian,

All computer temperatures go up and down with ambient, so your idle temperatures are quite plausible.

Please run Prime95 version 26.6 Small FFT's for 10 minutes so we can see your load temperatures on Real Temp.

CT

Will do.

Just wondering though, why 26.6 and not a more current version?

 

[Gallarian]

Heres a screen shot after 10 minutes of Prime95 Small FTTs, with RealTemps showing all core temps (with MSI afterburner also running as a test, showing CPU load at 100%).

Min: 14-19 C

Max: 33-50 C

 

[CompuTronix]

Do not run any versions of Prime95 later than 26.6. Here's why:

Core i 2nd through 6th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.5, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the utility AIDA64 shows similar results.

Prime95 v26.6 produces temperatures on 3rd through 6th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a significantly larger Die.

Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.5.

Also, MSI Afterburner may be conflicting with Real Temp. It is not recommended to run multiple monitoring utilities concurrently, as they may interfere with one another.

CT

 

[Gallarian]

Do not run any versions of Prime95 later than 26.6. Here's why:

Core i 2nd through 6th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95, such as 28.5, run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the utility AIDA64 shows similar results.

Prime95 v26.6 produces temperatures on 3rd through 6th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a significantly larger Die.

Your Core temperatures will test 10 to 20C lower with v26.6 than with v28.5.

Also, MSI Afterburner may be conflicting with Real Temp. It is not recommended to run multiple monitoring utilities concurrently, as they may interfere with one another.

CT

Fair one.

Afterburner was only opened for the screen shot just to show that all monitoring software gives the same results.

Now that you have seen idle and load with RealTemps, what would be your judgement on my temperature values?

 

[Karsten75]

I'm really sorry, but I don't believe your ambient temperatures.

Inverness has outdoor temperatures around 8-12C depending on time of day for this time of the year. That's outdoor. You can't realistically live with those temperatures indoors. You'd have to be bundled up all the time and wear multiple layers of clothing. It's not just too cold for comfort.

https://en.wikipedia.org/wiki/Room_temperature

According to the West Midlands Public Health Observatory (UK), an adequate level of wintertime warmth is 21 °C (70 °F) for a living room, and a minimum of 18 °C (64 °F) for other occupied rooms, giving 24 °C (75 °F) as a maximum comfortable room temperature for sedentary adults. At temperatures below 20 °C (68 °F), increased risk of death has been observed, and winter deaths reportedly rise at a rate of about 1.4% per degree below 18 °C (64 °F).[4]

From WebMD: http://www.m.webmd.com/a-to-z-guides/tc/hypothermia-and-cold-temperature-exposure-topic-overview

What can cause hypothermia?
Hypothermia can occur when you are exposed to cold air, water, wind, or rain.
Your body temperature can drop to a low level at temperatures of 50°F (10°C)

Granted, I doubt your ambient is wet and windy (indoors after all), but you're running 2 degrees colder.

 

[Gallarian]

I'm really sorry, but I don't believe your ambient temperatures.

Inverness has outdoor temperatures around 8-12C depending on time of day for this time of the year. That's outdoor. You can't realistically live with those temperatures indoors. You'd have to be bundled up all the time and wear multiple layers of clothing. It's not just too cold for comfort.

https://en.wikipedia.org/wiki/Room_temperature

According to the West Midlands Public Health Observatory (UK), an adequate level of wintertime warmth is 21 °C (70 °F) for a living room, and a minimum of 18 °C (64 °F) for other occupied rooms, giving 24 °C (75 °F) as a maximum comfortable room temperature for sedentary adults. At temperatures below 20 °C (68 °F), increased risk of death has been observed, and winter deaths reportedly rise at a rate of about 1.4% per degree below 18 °C (64 °F).[4]

Yeah, spoke to my brother (heating and gas engineer); the 7C on the heating display is the temp the house has to get to for the heating to be on, rather than what it currently is.

I would say with confidence however, that my office (where my PC is situated) will be much colder than the average living room. It is on the corner of the building (so 2 exposed walls) with no radiator and a window that doesn't shut properly, so I would definitely classify the temperature as 'uncomfortable' at best.

 

[Karsten75]

I would definitely classify the temperature as 'uncomfortable' at best.

You may be the first person that I'd ever recommend the AMD FX 9590 to... with a TDP of 220W, it will improve your situation markedly. (just kidding).

 

[CompuTronix]

I realize that we've already visited this issue with ambient temperature, but Karsten75's point is well made.

I don't wish to put you to any difficulty, but before I answer your questions, I really think we need to know the temperature near your computer's air intake. A small and inexpensive plastic mercury thermometer would do just fine.

Also, what is your Vcore and Watts during Small FFT's,?

Use CPU-Z for Vcore and Core Temp for Watts.

I'm asking these questions because extremely low ambient temperatures can significantly skew Core temperatures. Here's why:

At a given Vcore and workload, and with respect to 22C Standard Ambient, as ambient temperature decreases, resistance and power decreases in a non-linear manner.

Conversely, as ambient temperatures increase, resistance and power increases in a similar manner.

I'm not being trivial, I'm just trying to help you. I can give you an accurate answer, but we need a little more information. Just hang in there with me ... we'll get there.

Thanks

CT

 

[Remco_]

I'm experiencing the same low temperatures with the i5 6600k.

 

[mastergup]

first you telling running at 4.5ghz but like it shows in cpu-z its running at 4.4ghz, second now where i can see what the vcore is on load show it please
with adeptive vcore in idle i have the same temps but with fixed vcore under load not

 

[Gallarian]

first you telling running at 4.5ghz but like it shows in cpu-z its running at 4.4ghz, second now where i can see what the vcore is on load show it please
with adeptive vcore in idle i have the same temps but with fixed vcore under load not

Nice 'necro' - go find someone that needs your help, I most certainly don't.

 

[g-unit1111]

Nice 'necro' - go find someone that needs your help, I most certainly don't.

Yes please don't bump old threads. Further attempts to do so may result in sanctions against your account. This thread will be closed for further replies.