CPU temps too high?

[El_Mayo]

My i7-4790K is idling around 40 degrees when running every fan at 100% and hitting 96-100 degrees in any type of Prime 95 test and would probably go even higher in Intel Burn test. The motherboard is around 27 degrees which is what I'd expect the CPU to be also.

Voltage is 1.296V (even when the CPU clocks down to 800mhz) (CPU Z)

I've got a Thermalright True Spirit Power 140, and I've tried reseating the heatsink and reapplied thermal paste... but these temps feel way too high and are probably what's limiting my overclocking right now

I can't find a sticky thread about this matter on the forum

 

[Toothless]

Looks like you need a better cooler. I'd look at a uh.. This for cooling.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608018

 

[El_Mayo]

Looks like you need a better cooler. I'd look at a uh.. This for cooling.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835608018

The reviews I've read don't point towards this being that bad a cooler

http://forums.bit-tech.net/showthread.php?t=269339

http://www.dvtests.com/thermalright-true-spirit-140-power-test-review/

http://www.play3r.net/reviews/thermalright-true-spirit-140-power-review/8/

So I'm thinking it's something else before I assume the cooler just can't hack it

edit: I'm using a pull fan set up, if that could be a reason? the assumption I made was didn't matter if it was push or pull

I edited some settings in ASUS Suite III, the CPU Power Phase Control, and now the voltages fluctuate when idle instead of remaining a consistent 1.298, but the temps are still high so it's not that

 

[micropage7]

i may lapping the heatsink first, using better paste and using better fan plus improving airflow before thinking of new cooler

 

[sneekypeet]

I'm using a pull fan set up, if that could be a reason?

Could be this, but there is an easy test to find out. Due to the open side construction, you may be pulling a lot of the air in from the sides and not getting good flow across the main body of fins. To test it, hold a lighter lit in front of the cooler. If the flame bends in towards the fins, I'd say its fine. You could also just swap the fan and see if temperatures go down.

 

[64K]

My i7-4790K is idling around 40 degrees when running every fan at 100% and hitting 96-100 degrees in any type of Prime 95 test and would probably go even higher in Intel Burn test. The motherboard is around 27 degrees which is what I'd expect the CPU to be also.

Voltage is 1.296V (even when the CPU clocks down to 800mhz) (CPU Z)

I've got a Thermalright True Spirit Power 140, and I've tried reseating the heatsink and reapplied thermal paste... but these temps feel way too high and are probably what's limiting my overclocking right now

I can't find a sticky thread about this matter on the forum

Those temps are way too high. Have you checked to see if the heat pipes on your cooler are connected to the plate that rests on your CPU? I'm wondering if it's defective.

Edit: They should be attached to the bottom of the box and not the top.

 

[sneekypeet]

I'm wondering if it's defective.

This is a possibility as well. Only other thing I could think of off the top of my head is that if you do not remove the sticker on the base it would perform like this!

 

[RealNeil]

(CPU Z)

This CPU-Z link that you posted shows a CPU Temp of 36c and that is normal.
Are you looking at your temps in Celsius or Fahrenheit measurements?

 

[64K]

This CPU-Z link that you posted shows a CPU Temp of 36c and that is normal.
Are you looking at your temps in Celsius or Fahrenheit measurements?

Yes, but that was under these conditions according to his post.
"Voltage is 1.296V (even when the CPU clocks down to 800mhz) (CPU Z)"

36 celsius is still high and his system would be hitting a lot higher temps than 100 degrees fahreheit under Prime 95 so it can't be confusing farenheit for celsius.

 

[Ruyki]

Try using OCCT instead of Prime 95 as your loadtest, it should give better results on haswell.

And you're probably not gonna get 30ish idle temps if you CPU doesn't do the whole drop voltage and clockspeed when it's not under load thing.

What frequency do you run at?

 

[OneMoar]

possibly had a heatpipe leak out it does happen if you get a pin hole in it someplace the acetone will leak out and render the pipe useless
I would try a push config on the fan tho
just remember tho you are running at nearly 1.3V and prime95 stresses the FPU so 90C temps are not unheard of with that config
I would also check and make sure the fan speed is being ramped correctly

 

[RealNeil]

I read a few reviews on the cooler in question and I see that it supports twin fans in a push/pull configuration. (they even include retention devices for two fans)
I would try setting the power options in BIOS to stock settings, and then add the second fan for a push/pull configuration.

 

[El_Mayo]

possibly had a heatpipe leak out it does happen if you get a pin hole in it someplace the acetone will leak out and render the pipe useless
I would try a push config on the fan tho
just remember tho you are running at nearly 1.3V and prime95 stresses the FPU so 90C temps are not unheard of with that config
I would also check and make sure the fan speed is being ramped correctly

I agree, I can deal with 90 degrees at 4.4-4.6ghz because when I game I only get up to about 65 degrees
It's the idle temps that make me think something's wrong because the ambient temps are nowhere near 40 degrees

Try using OCCT instead of Prime 95 as your loadtest, it should give better results on haswell.

And you're probably not gonna get 30ish idle temps if you CPU doesn't do the whole drop voltage and clockspeed when it's not under load thing.

What frequency do you run at?

Hi there, I found why the voltages weren't reducing, the power saving formula option in AI Suite wasn't enabled. Now I have the voltages reduce when idling, but temps remain the same (???)

CPU Z

 

[OneMoar]

before someone comes in and says otherwise
prime95 does not "overheat" your cpu the reason prime95 causes the spike in heat output is that its using a AVX and high FPU Loads
if you can't keep the temps under control with prime then you either need less overclock or better cooling

 

[El_Mayo]

41 degrees in the BIOS! I think the chip is messed up?

 

[Dippyskoodlez]

41 degrees in the BIOS! I think the chip is messed up?

Feel the base of your heatsink, if it is not warm(at 40C+) then your mount is wrong.

if the heatsink is hot after sitting idle in the bios, something strange is happening.

I would find it hard to believe the CPU is messed up this early in the troubleshooting unless you got an extremely bunk IHS mount (doubtful).

 

[El_Mayo]

Feel the base of your heatsink, if it is not warm(at 40C+) then your mount is wrong.

if the heatsink is hot after sitting idle in the bios, something strange is happening.

I would find it hard to believe the CPU is messed up this early in the troubleshooting unless you got an extremely bunk IHS mount (doubtful).

It feels warm to touch when idling in Windows

I'm leaving it to sit in the bios with the side open and the CPU fan at 100%... 37 degrees... Slowly coming down to between 34 and 35. However it doesn't feel warm at all after its been in just the BIOS (I'm trying to reduce voltage to 1.2 to see if that helps)

I will try the stock cooler and if for any reason the temps are better then the heatsink is the problem


Update: this doesn't look good at all!

This is with the stock heatsink. Definitely the chip?
I've just filed for an RMA

 

[OneMoar]

I think you got a bunk sensor really if your CPU was 80C you would't be-able to touch the heat-sink base for more then a few seconds without EXTREME Discomfort 80c is 176F your avg hot-water at full blast is about 140F
tho on some boards the CPU will go to the maximum performance level while sitting the bios
check the temps with realtemp
http://www.techpowerup.com/realtemp/

 

[El_Mayo]

I think you got a bunk sensor really if your CPU was 80C you would't be-able to touch the heat-sink base for more then a few seconds without EXTREME Discomfort 80c is 176F your avg hot-water at full blast is about 140F
tho on some boards the CPU will go to the maximum performance level while sitting the bios
check the temps with realtemp
http://www.techpowerup.com/realtemp/

I didn't touch it when it was 80 degrees, I took a pic and turned it off asap as I was worried the chip would mess up or something. Even if it is a busted sensor I'm going to RMA anyway and hopefully get one with a working sensor

 

[OneMoar]

80c isn`t hot enough to damage anything

 

[El_Mayo]

80c isn`t hot enough to damage anything

Ye true the temps were climbing. I'll still use the PC with the thermalright cooler until I can get a replacement

 

[Ruyki]

But the CPU temp reported in the bios is probably from a sensor located on the motherboard near the CPU socket or in it. If this sensor is faulty, replacing the chip won't help.

 

[El_Mayo]

But the CPU temp reported in the bios is probably from a sensor located on the motherboard near the CPU socket or in it. If this sensor is faulty, replacing the chip won't help.

I saw similar temps when I loaded into Windows, the temps ballooned up to 95 degrees in Core Temp and the PC shut down. I'll try it again later and see if the temps are different with RealTemp

Update: no difference between real temp and core temp, the idle temps are still high (this is with the STOCK cooler now) as you can see the voltages is lower with less load. I've reinstalled Windows 8 and I didn't install ASUS AI Suite III this time round

 

[El_Mayo]

Update: somewhere inbetween the reinstall of Windows, the reinstallation of the heatsink and the updating of the bios, the temps look at LOT better.

Screenshot is running Small FFTs. I notice that the chip isn't actually doing the 4.4Ghz turbo and the voltage isn't near the usual 1.3, but it's a start

 

[GorbazTheDragon]

If you had a different chip to test with I'd say do that. Otherwise, if it persists, you might want to RMA the CPU.