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i7 4790k cpu temp extremely high is the CPU faulty?

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  • Intel i7
  • CPUs
Last response: in CPUs
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October 14, 2014 3:35:53 AM

Hi I've looked at several threads all complaing about cpu temp with i7 4790k cpu. I'm afraid my question is no different. I'm thinking that I may have a faulty chip.
My Rig:
Coolermaster Cosmos SE mid tower case
2* Noctua NF-P12 PWM 120 Cooling fan
Asus Z87 PTO MB
Corsair Vengeance low PROFILE 2*8 GO DR 1600MHZ
Intel i7 4790k cpu
Asus Nvidia Geforce GTX 660
Notcua NF-F12PWM
Crucial MX100256 SSD

As soon as I enter the Bios the temperature jumps from normal temps to over 89 degrees which is mega hot. I've ajusted the voltaged to the cpu and that has brought it down to at best 79 degrees, which is still high. After re seating the heat sink several times with new compound it made no difference.

Is there anything else I can do to bring the temperature down or should I just return the chip back to amazon?

More about : 4790k cpu temp extremely high cpu faulty

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a b à CPUs
October 14, 2014 3:42:10 AM

Your motherboard needs a bios update to work with the I7 4790k.

As for the temp problem, return the cpu.
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a c 245 à CPUs
October 14, 2014 3:51:16 AM

Is this with the stock intel cooler?

While it is a little hot, that does not mean the CPU is faulty and is elligible for warranty, the temp is still within Intel spec.
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October 14, 2014 4:47:14 AM

@ dubbleclick forgot to mention updated the Bios now running version 2103

@Novuake I'm running this with a Notcua NH-L12 heatsink. Which should be at 5-10 degrees lower than the stock cooler. My motherboard say it running hot while doing nothing. This chip should only reach these type of tempreatures while gaming or some like that. Considering I have not even attempted to overy lock this chip thus can't be right? Can it?

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a c 245 à CPUs
October 14, 2014 4:50:00 AM

Wait, so that is in idle on your windows desktop?
In bios? Where?

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a b à CPUs
October 14, 2014 5:59:17 AM

He said in bios, where it should be about 40c max, with an ambient temp of 28c.
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October 14, 2014 6:06:12 AM

Yep that's right running idle I'm getting those high temperatures. Hence why I say there must be something wrong with this chip.

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a c 245 à CPUs
October 14, 2014 6:24:12 AM

BIOS sets the CPU to load(unless this is changed with Haswell).
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October 14, 2014 6:33:39 AM

Well do you both are that this isn't right and there is a possible fault with the cpu or even MB?
Is there anything else that I could do? If not I'm going to return the chip back to Amazon.
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a b à CPUs
October 15, 2014 2:04:00 AM

Novuake said:
BIOS sets the CPU to load(unless this is changed with Haswell).


It does give load to the cpu, but not more than maybe 5%. It simply maintains the turbo clock, but doesn't put heavy load that would produce high temperatures.
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a b à CPUs
October 15, 2014 2:04:54 AM

You could try remounting the cooler, reapplying thermal paste (after rubbing it off) and then give it another shot. But as you already did that, I'd just return the chip to amazon.
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October 15, 2014 11:54:32 PM

@Dubbleclick well I tried something a bit different, I downloaded the Intel diagnostic tool and to my astonishment it passed on the the default scan.

The output claimed that the CPU is 5 degrees under its maximum tolerance level.

Now I'm somewhat perplexed at this, does anyone know of a free independent and reliable stress test tool that I can you?
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a b à CPUs
October 16, 2014 12:57:33 AM

For monitoring temps, coretemp.
For monitoring about everything you can think of, hwinfo64.

Stress stability test Intel Burn Test.
Temperature test prime 95 version 26.6.

It might be that your cpu is working great, but can't dissipate the heat to the heatspreader because of too little TIM between die and ihs.
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October 16, 2014 5:19:24 AM

Okay thanks for the info I will try these to confirm that my results from Intel are correct.
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