5820K high temps with Noctua D15

[kiasta]

So I just re-applied thermal paste thrice now. Made sure it's a pea sized dot in the middle like I always do.

I am using the Noctua D15 with both fans in place, blowing upwards. I have 1 140MM fan and 2x 120MM fans. I would have 2 more 120MM fans on the side but they will not fit with the Noctua. So I have decent airflow and there is an intake fan so there will not be a vacuum.

My idle temps are at a steady 32-34C but using the small FFTs I have reached a max temp of 85C after about a half hour, so I shut it down in case it gets any hotter. On blend it gets to 80C after about 15 minutes.

I am not overclocking at all. Everything is stock speeds including the Ram even though it is 2800MHz, it is only running at 2133MHz. Is there something that I am missing, do I have a bad CPU? I just received it 2 days ago so if I need to I can return it. I know for sure I have a proper spread, I have applied it a few times to check the spread before I even turned it on and did re-apply a few more times because of high temps.

If it helps here are my specs:

ASUS X99 Deluxe/U3.1 Mobo
32GB Ripjaws4 DDR4 @ 2800MHz
Intel 5820k
Noctua NH-D15
Rosewill CHALLENGER Case

The 120MM fan in front on the bottom is the intake, the 140MM on top is pulling the air coming from the heatsink which both fans blowing toward. The 120MM fan in the back on top is also blowing outward. I don't think I need to get a watercooler for stock speeds... the Noctua should be plenty good enough even with a few hundred MHz overclocked.

Any Suggestions?

 

[BonzaiDuck]

So I just re-applied thermal paste thrice now. Made sure it's a pea sized dot in the middle like I always do.

I am using the Noctua D15 with both fans in place, blowing upwards. I have 1 140MM fan and 2x 120MM fans. I would have 2 more 120MM fans on the side but they will not fit with the Noctua. So I have decent airflow and there is an intake fan so there will not be a vacuum.

My idle temps are at a steady 32-34C but using the small FFTs I have reached a max temp of 85C after about a half hour, so I shut it down in case it gets any hotter. On blend it gets to 80C after about 15 minutes.

I am not overclocking at all. Everything is stock speeds including the Ram even though it is 2800MHz, it is only running at 2133MHz. Is there something that I am missing, do I have a bad CPU? I just received it 2 days ago so if I need to I can return it. I know for sure I have a proper spread, I have applied it a few times to check the spread before I even turned it on and did re-apply a few more times because of high temps.

If it helps here are my specs:

ASUS X99 Deluxe/U3.1 Mobo
32GB Ripjaws4 DDR4 @ 2800MHz
Intel 5820k
Noctua NH-D15
Rosewill CHALLENGER Case

The 120MM fan in front on the bottom is the intake, the 140MM on top is pulling the air coming from the heatsink which both fans blowing toward. The 120MM fan in the back on top is also blowing outward. I don't think I need to get a watercooler for stock speeds... the Noctua should be plenty good enough even with a few hundred MHz overclocked.

Any Suggestions?

Upwards?! Do you have it ported to a vent in the top of the case? I can see there is a vent in the top of the Challenger for either a single 120mm or 140mm fan. You also indicate that you only have a single intake fan -- I'm guessing either 120 or 140mm.

You can make the alternate orientation of the heatsink work, but it would be less troublesome if you could just set it up so that it blows air at the 120mm rear exhaust fan.

The i7-5820K is a toasty chip which runs under Prime95 load at stock settings to produce 140W of thermal power. Also, it is likely at the version of Prime95 you are using includes a vigorous use of the AVX2 instruction-set extensions.

To get a better idea of what is happening with this, first compare the sFFT temperatures against something like OCCT:CPU.

There are several ways to get the maximum cooling effectiveness from the D15 in either orientation. You can duct the cooler. You can install a second exhaust fan at the case top -- which you did, and duct two adjacent sides of the cooler fins, perhaps with a an obstruction between the towers to channel air at faster velocity. Thus intake air would enter the cooler on two sides and exit on two sides. But I'd also find some way to increase intake air-flow.

Also, it shouldn't make as much difference as other factors, but what TIM are you using?

 

[deanx0r]

The newer versions of Prime95 aren't great for Haswell. Some stress tests out there needlessly overheat the CPU even at stock speed. They aren't representative of what you would be getting in the real world. Download Intel XTU and run the benchmark test and report us what kind of temperatures you are getting.

 

[kiasta]

Yeah upwards to the top so the top fan can pull the air. I would put more fans in but there isn't anywhere else to put more. The heatsink is so huge that I can't fit anymore fans in the case. I am considering getting a new case anyways but for now this will suffice. The TIM I am using is Arctic MX-4. I suppose I could take a picture of the setup and show the airflow. I just thought of something, perhaps I can install the fans on the outside of the case as the intake. Also, I ran the OCCT test for 15 minutes and my CPU never went past 71C. I haven't build a computer in 5 years guess I need to brush up a bit on what's new, perhaps I should have researched better for bench tests. I'll run OCCT all night tonight and see how my temps look in the morning. Thanks for your help and ideas

 

[kiasta]

The newer versions of Prime95 aren't great for Haswell. Some stress tests out there needlessly overheat the CPU even at stock speed. They aren't representative of what you would be getting in the real world. Download Intel XTU and run the benchmark test and report us what kind of temperatures you are getting.

Alright I'll try that out and let you know.

 

[Burpo]

I noticed from your cinebench score, that you're running 102bclk. You must be using an XMP profile. That pushes the cpu a little harder than stock, but a Noctua should handle it. Even so, It's not throttling @ 85c..

 

[kiasta]

I noticed from your cinebench score, that you're running 102bclk. You must be using an XMP profile. That pushes the cpu a little harder than stock, but a Noctua should handle it. Even so, It's not throttling @ 85c..

Yeah I used the EZ tuning because I was having a lot of issues with enabling the XMP profile, matter of fact anything I did manually I kept getting overclock failure errors, including just enabling the XMP profile itself.

 

[kiasta]

Alright I ran XTU did a 15 minute stress test didn't go above 65C and did the benchmark and I got a score of 1586 with a max CPU temp of 62C.

So I guess that it's not my CPU just an issue with Prime95.

 

[Yuriman]

Not Prime95 specifically, but anything that uses AVX instructions. Some things do, but they're not common yet in consumer workloads so it's an unrealistic "worst case".

 

[BonzaiDuck]

"EZ tuning." There will be understandable variations/differences between the generations of ASUS proprietary software.

Another member's experience posted in these forums and various reviews or posts in other forums suggests to me that the VCORE by default or "AI Overclocking" is higher than it needs to be.

You probably should run some tests, and filter some threads and posts for some mention of VCORE, Offset and related settings that give stability at stock or the mildest overclock. I'm not familiar with your motherboard or BIOS, but just about any of the regulars here at the Anand forums would probably agree: When you mention "EZ tuning," the first thing that comes to mind is "more voltage than you need to run at that speed."

The OCCT:CPU tests also suggest that you're on the high side of a comfort zone for that cooler. The other Anand member had started with a D15, wasn't satisfied with the temperatures, but seemed to have as much trouble with a large external radiator in a custom-water cooling choice.

But the OCCT result, if only for 15 minutes leads me to think that your temperature problem was due to running Prime with the AVX2 extensions. For now, you're probably OK. I think it can be better, and I gave some thoughts toward making it so.

 

[kiasta]

Not Prime95 specifically, but anything that uses AVX instructions. Some things do, but they're not common yet in consumer workloads so it's an unrealistic "worst case".

Well I guess that is true. I should have just did more research and tried other tests.

"EZ tuning." There will be understandable variations/differences between the generations of ASUS proprietary software.

Another member's experience posted in these forums and various reviews or posts in other forums suggests to me that the VCORE by default or "AI Overclocking" is higher than it needs to be.

You probably should run some tests, and filter some threads and posts for some mention of VCORE, Offset and related settings that give stability at stock or the mildest overclock. I'm not familiar with your motherboard or BIOS, but just about any of the regulars here at the Anand forums would probably agree: When you mention "EZ tuning," the first thing that comes to mind is "more voltage than you need to run at that speed."

The OCCT:CPU tests also suggest that you're on the high side of a comfort zone for that cooler. The other Anand member had started with a D15, wasn't satisfied with the temperatures, but seemed to have as much trouble with a large external radiator in a custom-water cooling choice.

But the OCCT result, if only for 15 minutes leads me to think that your temperature problem was due to running Prime with the AVX2 extensions. For now, you're probably OK. I think it can be better, and I gave some thoughts toward making it so.

Indeed you have. I added the 2 fans on the outside of the case for intake. Both are 120mm so that should suffice (I hope)? I have in total 5 case fans and the 2 CPU fans. I'm about to do some tests now to see if that helped anything. As for the EZ tuning: I tried everything I could to get the XMP profile to work without error. Even manually modifying the CPU bclk too much causes a overclocking error. just enabling the XMP profile causes errors and my computer to crash. So the only way to do anything is with the EZ tuning. I spoke with customer support for Asus and they just told me to use the EZ Tuning, so on my day off I'm going to sit here with live support and figure this all out. But you are probably right about the voltages. I'll take a screenshot of the CPU-Z and you can see what the voltages are. I set the bclk back to 100 and it took, thankfully.

Not sure what proper voltages should be but I'll do some more research.

 

[maddogmcgee]

Holy cow, is that 1.9 vcore? That can't be right. I would imagine 1.5 or so would kill the CPU kinda fast and create huge amounts of heat. What does CPUZ report the voltage as when your doing CPU intensive stuff? If it's really 1.9 I would try to avoid doing anything on your PC till you get that down to maybe 1.3ish

 

[Burpo]

I see 1.09.. not 1.9

 

[kiasta]

Holy cow, is that 1.9 vcore? That can't be right. I would imagine 1.5 or so would kill the CPU kinda fast and create huge amounts of heat. What does CPUZ report the voltage as when your doing CPU intensive stuff? If it's really 1.9 I would try to avoid doing anything on your PC till you get that down to maybe 1.3ish

Using OCCT that was recommended, the core voltage, according to CPU-Z, only gets to the 1.147V at max and according to OCCT the VCORE is at max 1.89v

This is the voltages according to the BIOS

 

[BonzaiDuck]

The good ol' ASUS BIOS and its side-by-side real-time monitor.

First, the peculiar incongruities. HWMonitor and CPU_Z are both products of the CPUID shop. HWMonitor is reporting "CPU Input Voltage" as VCORE; the BIOS shows the distinction between the two; and HWMonitor libraries are used by OCCT.

A software revision by both CPUID and the author of OCCT is probably in order. Or maybe the OP is using older versions.

But there's really no problem with this, except that you'd really like to use a stress-test program with built-in monitoring that is 100% accurate, even for only one item. Conversely, you don't want to run two different monitor programs simultaneously. But running CPU_Z alongside OCCT should not pose a problem, unless someone can verify otherwise.

 

[stockwiz]

I don't know if people still do this but I've lapped the IHS on the processor my last 3 or 4 builds (which probably span 10 years now) ... usually the heatsink itself is manufactured so it doesn't need lapping but the same cannot be said for the IHS. Past processors would be concave for me, where it was not making sufficient contact in the middle.

 

[DrMrLordX]

Lapping is controversial. I often do it myself, but that doesn't mean it's right for everyone. It could help the OP if he's serious about AVX/AVX2 workloads. Otherwise, I don't see it as being a big problem.

 

[escrow4]

What are temps in game? My 5930K @ 3.7GHz all cores @ 1.1v or less on an Asrock X99 Extreme 4 hits around 50 celsius with a Noctua UH-14S. Too lazy to overclock. Plus Haswell in general runs hot and is rather temperamental.

 

[kiasta]

So I think you guys were on to something with the voltages. I took some of your advice and used another test bench RealBench by Asus. I also just decided to set my voltage, BCLK and Ratios manually and I have a stable overclock of 4.4GHz at only 72C on load. I could go back to stock speeds I think the max temp was only just over 60C. I did the overclock only to see how far I could go while staying under 1.3v and unfortunately 4.5GHz is unstable below 1.325v. Either way I'm no longer getting ridiculous temps. Of course, I'm going to let this run overnight just to make completely sure it's stable.

Here is what I set manually

BCLK: 100 (100 is default, but the auto-tuning and XMP profile increases it, so I thought it was worth noting)
CPU Ratio: 44 and used sync all cores
Cache Ratio: 24
CPU Core Voltage: 1.275

Everything else I left on auto or default. Ram speed I'm getting 2400MHz and I've yet to get a stable overclock, but I'm not really interested in doing so as 2400MHz is fast enough.

You guys have been a lot of help, I appreciate it

 

[kiasta]

What are temps in game? My 5930K @ 3.7GHz all cores @ 1.1v or less on an Asrock X99 Extreme 4 hits around 50 celsius with a Noctua UH-14S. Too lazy to overclock. Plus Haswell in general runs hot and is rather temperamental.

Just completed the drone mission in Star Citizen and it didn't get above 52C with the 4.4GHz overclock. Though there was some stuttering but I think that has to do with me still using an HD 6870. Just waiting for my 780Ti to get repaired and sent back.

*UPDATE*
I let the benchtest run overnight and it did so without a hitch. Closed the benchtest, cpu-z and hwmonitor. Then went to open cinebench to check my new score and I get a BSOD with IRQL_NOT_LESS_OR_EQUAL and at post an overclock failed error. I set the voltage back to auto and did a 15 minute bench to see what the max voltage was and it was at 1.290v. So while it was stable with the bench it was apparently not as stable as I thought. Probably very close though, maybe I could pull it off with 1.285v or 1.290v at the most.

 

[DrMrLordX]

It may be just one LLC tweak away from stability. What LLC settings are you using right now?

 

[BonzaiDuck]

Maybe I'm venturing a conclusion a bit early, but I'd think your 5820K @ 4.4 is a "done deal" with that Noctua D15.

I'm assuming that your ~72C high-load bench result was made without AVX2, or you used something like OCCT:CPU, AIDA-64 or Intel XTU?

That's an 800Mhz OC from stock turbo speed. I'd say -- good enough. You may be luckier than another cohort of 5820K owners.