4790K Really High Temps

[sentiax]

So my 4790K is hitting 80+C with an H100i on an Asus z97-Pro WiFi AC. I've reseated the cooler twice and it was originally cooling great, after the first reseating, not even hitting 60C under small fft test in p95 or fpu stress test in Aida 64. Now even at complete stock it's sky rocketing and won't turbo while stress testing unless my memory's XMP profile is enabled. Does anybody know what could be causing this, are these temps normal? I thought this thing was supposed to be able to OC close to 5ghz without much heat problems. I'd like to at least be able to hit 4.6 without hitting 80C.

 

[TechyInAZ]

check the voltages, make sure it's not insane like 1.5Vcore. and also make sure the thermal paste is seated correctly, if needed just apply a brand new layer of paste.

Also, 4790K is known to only reach 4.6 ghz, only a handful can go beyond 5Ghz.

 

[volcanoscout]

At 4.4 and above, it's temp curve is going to match the 4770K. Below that it's supposed to be running as much as 10C cooler, but lately there's been a lot of posts saying idle temps are high too, in spite of coolers.

 

[sentiax]

check the voltages, make sure it's not insane like 1.5Vcore. and also make sure the thermal paste is seated correctly, if needed just apply a brand new layer of paste.

Also, 4790K is known to only reach 4.6 ghz, only a handful can go beyond 5Ghz.

It's only hitting 1.17 at 4.4 turbo... I've reapplied thermal paste twice

 

[volcanoscout]

Here's a good article on overclocking the 4790K: http://www.extremetech.com/computing/185512-overclocking-intels-core-i7-4970k-can-devils-canyon-fix-haswells-low-clock-speeds/2

"If, however, you were eyeing the Core i7-4790K as an overclocking processor, we’d recommend looking elsewhere. Even if we charitably consider the Core i7-4790K’s 4.2GHz clock speed as the start of its overclocking range, we only managed to push our core up to 4.6GHz — a meager 9.5%. Based on what readers and other publications are reporting, your chance of getting a 5GHz-on-air processor is quite small. Intel has stated that later cores may improve this, but I’ve got my doubts — it has already had well over a year to optimize the architecture."

I just got my new 4790K and Hero VII today and haven't had much time to play with it, but I have a sneaking suspicion that I'm going to have to settle for 4.4 or 4.6 unless I switch to liquid...as in custom liquid.

 

[Tradesman1]

A lot depends on the individual CPU you get, they are all slightly different within a model (the silicon lottery).

 

[sentiax]

Here's a good article on overclocking the 4790K: http://www.extremetech.com/computing/185512-overclocking-intels-core-i7-4970k-can-devils-canyon-fix-haswells-low-clock-speeds/2

"If, however, you were eyeing the Core i7-4790K as an overclocking processor, we’d recommend looking elsewhere. Even if we charitably consider the Core i7-4790K’s 4.2GHz clock speed as the start of its overclocking range, we only managed to push our core up to 4.6GHz — a meager 9.5%. Based on what readers and other publications are reporting, your chance of getting a 5GHz-on-air processor is quite small. Intel has stated that later cores may improve this, but I’ve got my doubts — it has already had well over a year to optimize the architecture."

I just got my new 4790K and Hero VII today and haven't had much time to play with it, but I have a sneaking suspicion that I'm going to have to settle for 4.4 or 4.6 unless I switch to liquid...as in custom liquid.

This makes me sad... but I still feel like my temps are too high. I'll play with it around 4.6 when I get a chance I guess, but the H100i is brand new and a stellar cooler from what I can tell and the fact that it shoots up to 100C at 1.3V 4.8Ghz instantly is sorely disappointing. I still question whether there is something wrong with my stuff...

 

[timz45]

Here's a good article on overclocking the 4790K: http://www.extremetech.com/computing/185512-overclocking-intels-core-i7-4970k-can-devils-canyon-fix-haswells-low-clock-speeds/2

"If, however, you were eyeing the Core i7-4790K as an overclocking processor, we’d recommend looking elsewhere. Even if we charitably consider the Core i7-4790K’s 4.2GHz clock speed as the start of its overclocking range, we only managed to push our core up to 4.6GHz — a meager 9.5%. Based on what readers and other publications are reporting, your chance of getting a 5GHz-on-air processor is quite small. Intel has stated that later cores may improve this, but I’ve got my doubts — it has already had well over a year to optimize the architecture."

I just got my new 4790K and Hero VII today and haven't had much time to play with it, but I have a sneaking suspicion that I'm going to have to settle for 4.4 or 4.6 unless I switch to liquid...as in custom liquid.

This makes me sad... but I still feel like my temps are too high. I'll play with it around 4.6 when I get a chance I guess, but the H100i is brand new and a stellar cooler from what I can tell and the fact that it shoots up to 100C at 1.3V 4.8Ghz instantly is sorely disappointing. I still question whether there is something wrong with my stuff...

hey.

did you ever resolve this issue? I just built a system with this chip and I am having the exact same problem you are.

 

[sentiax]

Here's a good article on overclocking the 4790K: http://www.extremetech.com/computing/185512-overclocking-intels-core-i7-4970k-can-devils-canyon-fix-haswells-low-clock-speeds/2

"If, however, you were eyeing the Core i7-4790K as an overclocking processor, we’d recommend looking elsewhere. Even if we charitably consider the Core i7-4790K’s 4.2GHz clock speed as the start of its overclocking range, we only managed to push our core up to 4.6GHz — a meager 9.5%. Based on what readers and other publications are reporting, your chance of getting a 5GHz-on-air processor is quite small. Intel has stated that later cores may improve this, but I’ve got my doubts — it has already had well over a year to optimize the architecture."

I just got my new 4790K and Hero VII today and haven't had much time to play with it, but I have a sneaking suspicion that I'm going to have to settle for 4.4 or 4.6 unless I switch to liquid...as in custom liquid.

This makes me sad... but I still feel like my temps are too high. I'll play with it around 4.6 when I get a chance I guess, but the H100i is brand new and a stellar cooler from what I can tell and the fact that it shoots up to 100C at 1.3V 4.8Ghz instantly is sorely disappointing. I still question whether there is something wrong with my stuff...

hey.

did you ever resolve this issue? I just built a system with this chip and I am having the exact same problem you are.

Unfortunately no, I think the 4790k is just doomed to a life of mediocre overclocking, as I struggle to get good temps at a stable 4.4, which is even part of the turbo boost range.

 

[clueless77]

Press down on the heatsink while stressing it to see if you're getting poor contact, it's not all that much of an exception with the h80i and h100i from having the components being too loose when mounted on the motherboard resulting in not having enough tension to maintain good contact between the CPU and heatsink. If that doesn't do anything, if you want to overclock and push that chip to its reasonable limits, maybe time to delid with the vice method. Keep in mind that during stress tests that the chip will always generate more heat than what's going to ever be generated during normal usage, so I wouldn't worry too much about stress temps.

And 5 ghz? Only super golden chips are going to overclock to 5 ghz at anything under 1.40 volts. Mine's 4.7 at 1.32 on the core, 4.5 at 1.30 on the cache. Not great, but I'm not unhappy with it.

 

[sentiax]

Press down on the heatsink while stressing it to see if you're getting poor contact, it's not all that much of an exception with the h80i and h100i from having the components being too loose when mounted on the motherboard resulting in not having enough tension to maintain good contact between the CPU and heatsink. If that doesn't do anything, if you want to overclock and push that chip to its reasonable limits, maybe time to delid with the vice method. Keep in mind that during stress tests that the chip will always generate more heat than what's going to ever be generated during normal usage, so I wouldn't worry too much about stress temps.

And 5 ghz? Only super golden chips are going to overclock to 5 ghz at anything under 1.40 volts. Mine's 4.7 at 1.32 on the core, 4.5 at 1.30 on the cache. Not great, but I'm not unhappy with it.

I'm not delidding, I'll mess with my cooler and see if it helps, but I know 3 people having same issue with same or similar coolers. And yeah, with my 2500k I got it stable 4 years ago, so I'm not going to pretend to remember what my voltage was, but it was fine with a nh-d14 for 4 years at whatever it was, and only got replaced because 4790k and mobo were gift.

 

[clueless77]

The reason why people who overclock are almost always having issues with heat during stressing with the 4790k, for reasons that aren't hardware or bad TIM application induced, is because these chips are designed differently than previous generations and CPU stressing software when loading them is going to generate unrealistic usage temps. The supposedly cooler temps with the refreshes is mostly just Intel marketing pushing binned 4770k chips. Having come from a 3770k that I could keep really cool during stressing at a higher frequency and voltage, I was also disappointed with the 4790k, but even at somewhat slower clocks than our past experiences these chips are faster than those, probably somewhat overkill while at it.

If you don't want to delid, that's understandable, but sometimes it can make all the difference in the world.

 

[alleeeN]

Hi

I build my first pc by myself few days ago.
I have same "problems".
First my spec is:

Asus maxsimus VII hero
Intel i7 4790k
Corsair h105
Corsair Vengeance pro silver 16gb 2400mhz CL11
Corsair Carbide 540air case
Corsair RM750

I dont have gpu right now, i use intel integrated gpu
All new drivers and bios

Now my problems is:
Every day i check my temps, (bios all defaut i manualy just set xmp profile) cuz Ram is 2400mhz. At start my temps are i can say nice, i run intel burn test STANDARD mode 10 times and my temps on IDLE is 27-30c and max 74-77.
i7 4790k stock speed and i see my core voltage when is load on 4.4 is 1.211v
Next day i run intel burn test again 10 times. Idle 29-31c Max 79-83c
Again next day temps are fine like first time i wrote. 
Im not use spliter for h105 fans i conect one fan in CPU-FAN,another fan in CPU-OPT, and i connected PUMP in CHA-FAN3, i disable fan control in bios for cha-fan3 and in bios rpm is 1800-1850. But in AI suite3 rmp is 1600+ ? And out from box my pump have some buzzing sound,is not loud but i hear it. 
I see some lose on motherboard when i set h105 and i put on motherboard washer from h105 and is tight im sure.
Is this temp good or not ? I have new artic silver 5 premium. Maybe reaplied thermal paste? Move out washers ? Help im noob.
For monitor i use hwmonitor cpuz and realtemp, for stres i just use intel burn test.

 

[sentiax]

I think there is a massive bad batch of 4790K's, as you can see from the last post on the second page of this thread, this guy was in contact with his retailer to have them test his RMA'd CPU for thermal irregularities, and they discovered there was some, and then tested 4 more replacement CPUs before they found one operating normally. The temps on this one at 4.4Ghz turbo are with a STOCK HSF, if they can get it to stay under 80C with a stock HSF in turbo mode with Aida64, there's no reason mine should go over 75 or 70 in default turbo mode in Aida64, I'm going to try to RMA.

EDIT: It's not stock HSF, but a Zalman 9700, still doesn't change my point, H100i should be performing better.
https://communities.intel.com/thread/54032?start=15&tstart=0

https://communities.intel.com/servlet/JiveServlet/showImage/2-252758-239017/SCAN_replication_01.jpg

 

[clueless77]

Alleeen, I never used Intel Burn Test for the 4790k but I know that it puts a lot of load on the CPU, but that seems like that's probably about normal stress temps for stock, compared to both my experiences as well as many other people's. The variable in temps could be a change in your ambient temperature the next day, even if you may not notice it. You might want to look into what other people are getting in a similar setup just to make sure though, proceed from there.

Sentiax, about the cooler performing better, I'm telling ya, stress temps do not amount to real usage temps with these chips. My batch is like LB41960 or something like that, even delidded with a way better TIM than anything that Intel has applied under the IHS, I can still get around 100 c in one specific pass with Prime at that clock and voltage as stated above, whereas I get 80 c max in OCCT. It's the general consensus that the 4790k runs excessively hot during stressing, and there's what could be interpreted as a flaw in its design being the reason as to why it will run so hot. I have a h80i by the way, I never see over 55 in day to day usage with it set to low while using more cpu dependent and multithreaded applications. Low to mid 40's is about the norm when not in idle in less dependent application, 35 or under at idle or near it. RMA it I guess, but don't be surprised that even if you get a better chip that it'll generate just as much heat. That 4.8 at 1.30 is pretty nice though if you can get it stable.