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I5 2500k 85 deg idle cpu temp?

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September 9, 2011 12:56:29 PM

Greetings all, I am quite stressed out over this as it has just started happening to me as of late last night/early this morning.

I built my computer about a month ago and have never experienced heat levels like I am currently.

System specs:
Intel i5-2500k CPU at 3.30 ghz, not OC'd. Totally stock. Stock fan, everything.
4gb of ram
Asus GTX 560 video card
550w power supply
Asus P8P67-M LFA 1155 Intel P67 SATA 6Gb/s USB 3.0 Micro ATX Intel Mobo

Generally my PC has never ran this hot in any area, however while my CPU says 83-87~ degrees C idle, my core temps remain around 39-50ish.

My room is not excessively hot and I feel like I have the PC in a good position for air flow. The rig itself has 4 case fans, the stock processor fan, and the gfx card has two large fans on it itself.

I have here a screenshot of my Speedfan 4.44 & Real Temp 3.60 running with nothing more then Firefox open.

Is this faulty sensors or do I need to go purchase a new fan/heatsink asap? I'm completely willing to run to the store and pick up the Coolermaster Hyper 212 as I have read many reviews on it being a very cost efficient way of cooling down your CPU.



Any help would be greatly appreciated as I'm buggin out over this! :ouch:  I'm very new to custom built computers and I fear for frying my CPU/mobo.

-Steffen
a b B Homebuilt system
September 9, 2011 1:28:22 PM

False reporting, probably. Either the sensor has gone guts or the apps are reporting false temps. As the core temps are still around 37C.
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September 9, 2011 1:34:32 PM

So that's all I need to worry about? Is that the core temperatures are all normal? Should I still invest in the better Coolermaster Hyper 212 or does all look to be well?

From turning the rig off and going inside, the cpu itself does not feel overly hot to the touch.

But seeing a number like that is a bit nerve wracking. Like I said, very new to computer hardwares and whatnot so I really appreciate the prompt reply :love: 
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a b B Homebuilt system
September 9, 2011 1:46:24 PM

No, if its a sensor problem, or applications are false reporting, even getting a Hyper 212+ won't solve the problem..

Go to BIOS settings and check what temp. it reports for the processor. Anything below 70C in BIOS is normal.

These chips can handle upto 90-100C but that decreases the lifespan of them. Anything below 40C at idle is fine. 70-75C under load is fine in a hot country.
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September 9, 2011 2:12:04 PM

008Rohit said:
No, if its a sensor problem, or applications are false reporting, even getting a Hyper 212+ won't solve the problem..

Go to BIOS settings and check what temp. it reports for the processor. Anything below 70C in BIOS is normal.

These chips can handle upto 90-100C but that decreases the lifespan of them. Anything below 40C at idle is fine. 70-75C under load is fine in a hot country.


Okay sir! I shall do that right now! I just got done running Prime95 for half an hour and all seems to be well. I will report back shortly with the BIOS temp

EDIT: I also must thank you again, I really appreciate your help this early in the morning.

I live in florida, but my house temperature generally averages around 76 degrees. Would the computer being on a small raiser on carpet affect anything? b.c I have hard wood in the rest of my house, however carpet in my bedroom; and generally there is a noticeable temperature increase when I enter my room.

I can provide pictures of the setup if you like
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September 9, 2011 2:26:08 PM

Okay, back with the BIOS info.

On the normal ASUS settings my CPU was running at 69 degrees C
CPU voltage at 1.192
and CPU fan at ~2030 RPMS


however with it switched to the "optimal" setting,

The CPU temp reached 72 degrees C maximum,
with the voltage and fan speed precisely the same.

Is it safe to run with these settings constantly?

I use my PC for gaming, StarCraft2 in particular. As well as streaming SC2 in 720p. Perhaps an overclock would be to my advantage with a more powerful CPU fan + heatsink?

The general idea of OC'ing scares me a bit however I feel if done properly could unlock much potential my computer has that has yet to be tapped.
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a b B Homebuilt system
September 9, 2011 2:27:28 PM

steffen_91 said:
Okay sir! I shall do that right now! I just got done running Prime95 for half an hour and all seems to be well. I will report back shortly with the BIOS temp

EDIT: I also must thank you again, I really appreciate your help this early in the morning.

I live in florida, but my house temperature generally averages around 76 degrees. Would the computer being on a small raiser on carpet affect anything? b.c I have hard wood in the rest of my house, however carpet in my bedroom; and generally there is a noticeable temperature increase when I enter my room.

I can provide pictures of the setup if you like


Just like I thought. Post BIOS temp. readings too.

Whats 76 degree F in C? The carpet, wood etc doesn't really matter. From my experiences, keeping a ceiling fan or the AC open keeps the CPU temp. atleast 5-10C cooler.
I can also suggest you another thing which wonderfully worked for me.

In the BIOS, in Fan and Cooling section, Change the CPU Fan Minimum duty cycle to 35-40%, and the value "Try to keep the CPU Temp." from 85C to around 65C.

Earlier my i3 2100 used to heat up quickly upto 72-75C while gaming. Now it stays at under 65C under load.

Also, you have 4 case fans installed. May I know in which positions of the case are they fitted? an image would be nice.
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a b B Homebuilt system
September 9, 2011 2:30:58 PM

steffen_91 said:
Okay, back with the BIOS info.

On the normal ASUS settings my CPU was running at 69 degrees C
CPU voltage at 1.192
and CPU fan at ~2030 RPMS


however with it switched to the "optimal" setting,

The CPU temp reached 72 degrees C maximum,
with the voltage and fan speed precisely the same.

Is it safe to run with these settings constantly?

I use my PC for gaming, StarCraft2 in particular. As well as streaming SC2 in 720p. Perhaps an overclock would be to my advantage with a more powerful CPU fan + heatsink?

The general idea of OC'ing scares me a bit however I feel if done properly could unlock much potential my computer has that has yet to be tapped.


Err.. Every Motherboard's BIOS is different so I don't really no what values are set in that Optimal Setting.
I suggest you not to overclock the CPU ,

1. If its not necessary. Turbo Boost will do its job fine.
2. Unless you get a better heatsink. Something like a Cooler Master Hyper 212+ can handle i5 2500K overclocks upto 4.5Ghz.
3. Your CPUs life span will decrease slowly if it continues to run at a high temp. (over 70C) continuously.
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September 9, 2011 2:43:31 PM

Surely!

76 degrees F is 24 degrees in Celcius.


I will definitely give that BIOS setting a look see right now, and tweak those settings. I'm quite concerned w/ the temperatures of my rig at any givin time and that would be the top priority on my list to upgrade next before anything else. I've read about people achieving some absurdly low idle temps like high 20s~ super low 30s~.

That would be totally ideal imho.

Here is a diagram of the airflow for my pc, just took the picture 5 minutes ago. This is as it as this very moment.

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a b à CPUs
September 9, 2011 4:14:32 PM

Those GPU fans are pulling air and expelling it out the back and I believe the front of the GPU as well.

Not that it helps much, but As 008Rohit says it very well could be a defective/malfunctioning sensor, my Phenom II x4 840 reports core temps that are unbelievably low, and a CPU temp that's normal. So that's possible.

Quick example, Core temps are being reported as 20c, CPU is 27c (or 28c they are not labeled using HWMonitor)

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September 9, 2011 8:43:58 PM

OP here,

Everything seems to be in order, I really really reeeeaaaaaallllly appreciate the communities prompt replies!

Cheers! <3
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September 9, 2011 8:44:33 PM

Best answer selected by steffen_91.
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