Strange temp behavior?

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DJXT

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Jun 18, 2013
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I have idle temps that are about the same as my gaming temps. My idle temps are usually 54/57, temps during gaming may go up to 60 or so. 65 is the highest I've seen, though that was on a hot day with my door closed and my room being hotter than usual due to my pc's heat being caged in.

My CPU is an i7 2600 @ 3.4ghz with a coolermaster hyper 212 evo. I've had this same thing happening since I first installed this cooler after replacing the stock one, so it's not a new occurrence. Should I be worried, or is this normal/not a big deal?
 
Solution
opio
also: it could be too much or too little thermal paste, reseat your heat sink. If idle and load are the same you could have things running in the background you don't know about, I'd reformat and reseat the heatsink with just a dab of TIM. Arctic Silver is the best thermal paste IMO

Also go into your BIOS and get a temperature reading, lower your voltage to the core as well, see how low you can set your voltage to run whatever you're clocked at with stability
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High-end cards tend to be hotter than casual cards. As long it keeps under 80-90 it's ok, if it goes hotter than it should you could notice that in 2 ways: 1. Games/programs takes alot more time to load than they used to do 2. It shutsdown when it gets too hot automatically.
 
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also: it could be too much or too little thermal paste, reseat your heat sink. If idle and load are the same you could have things running in the background you don't know about, I'd reformat and reseat the heatsink with just a dab of TIM. Arctic Silver is the best thermal paste IMO

Also go into your BIOS and get a temperature reading, lower your voltage to the core as well, see how low you can set your voltage to run whatever you're clocked at with stability
 
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Solution
Thanks for the help. BIOS simply has "CPU temperature" at 40C, not individual core temperatures. I doubt it's anything running in the background, as I've been watching the cores at idle/low load (no fluctuations to more than 15% load) while doing light things like browsing the internet, and they've been staying consistently in the mid to upper 50s. I also ran small FFT in prime 95 for about an hour, 67 is the hottest a core got.

As long as these temps won't cause any problems anytime soon, I may just be content to leave them as they are for now unless they get much worse. About voltage though. I lowered it a little, and temperatures are a little lower now. Prime 95 only got to 61 this time.
 
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Respectfully, you appear to be misinformed.

Concerning CPU temperature in BIOS, you can't depend on BIOS to be accurate. CPU temperature in BIOS is higher than in Windows at idle, because BIOS starts the processor at boot voltage to ensure that it can initialize under any conditions.

There are 5 sensors in a quad core; 1 CPU sensor and 4 Core sensors.

CPU temperature is measured by a single analog thermal diode located under the cores, which is the overall temperature of the entire processor. This value is calibrated to look-up tables in BIOS, and is read through BIOS.

Thermal code can vary greatly between BIOS suppliers and version updates, and can be wrong by up to 30C. BIOS or CPU temperature may not be accurate.

Core temperatures are read directly from the digital thermal sensors in each core, which are factory calibrated by Intel. Core temperature is 5C higher than CPU temperature due to sensor location.

Core temperature is the standard for thermal measurement because it's consistently more accurate than CPU temperature.

Guys,

Partial workloads such as gaming, applications, rendering and encoding have fluctuating temperatures which aren't suitable for thermal testing or comparing temperatures, but they're great for endless speculation and debate.

Moreover, Standard Ambient temperature is 22C, which is normal room temperature, and is the reference value for Intel’s Thermal Specifications. Knowing your Ambient temperature is important because Ambient directly affects all computer temperatures.

Since everyone tests their rigs using X stress software at Y Ambient temperatures with Z measuring utilities resulting in CPU or Package or Core temperatures, it's impossible to compare apples to apples. This is why processor temperatures are so confusing.

The only way to make sense of your temperatures is to test your rig using a methodology that reduces the variables to the lowest common denominators. The Intel Temperature Guide explains how to do it in Section 12.

DJXT,

Which version of Prime95 are you running?

What is your ambient temperature?

At 22C Standard Ambient, here's the typical operating range for Core temperature:

80C Hot (100% Load)
75C Warm
70C Warm (Heavy Load)
60C Norm
50C Norm (Medium Load)
40C Norm
30C Cool (Idle)

Use Real Temp to measure your Core temperatures, as it was designed specifically for Intel processors: Real Temp - http://www.techpowerup.com/downloads/2089/real-temp-3-70/

Please post your Core temperatures and ambient temperature.

Also, please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT :sol:
 
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welp, all I know is that programs like speedfan and hwmonitor kept telling me my cpu was over 100c, could only get an accurate reading from my BIOS, thus why I used the word usually
 
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The point is that BIOS is usually not accurate, so I wouldn't place a great deal of faith in it.

The information I provided for you was also intended for everyone's benefit, which includes our silent readers in the background.

CT :sol:
 
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Hi CT, apologies for the late response. I'll do another measurement with the information you've provided and using the setup steps in the guide when I get home today with exact temps for my new cpu voltage if you'd like me to.

I've been using prime 95 v28.5 though. Ambient was 23C yesterday when I tested. Prior to changing Vcore to 1.2 (which was on auto originally), 68C was the highest core temperature I got from running small FFT for 30 minutes with fluctuating variations of 65-68 between the cores. Idle/low/gaming load was, as usual, in the mid to upper 50s. These temps were recorded with RealTemp and HwMonitor, both picked up similar temps.

It seems so odd to me that I've got such high idle/low load temperatures, but my heavy load temperatures seem quite normal, if I'm understanding things correctly. I would think that normally, decent load temps would be paired with decent idle temps.
 
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Lowering the Vcore actually seems to have made my peripherals behave strangely after waking my pc from sleep mode. My mouse never came on, monitor never got a signal, and my keyboard was unresponsive. I set Vcore to normal now and that problem was fixed.

I seem to have solved the temperature issue as well. Not sure what exactly worked, but I changed the C states and EIST in the BIOS to "enabled" from being on "auto" after finding advice to do that from other topics. I also changed "Processor idle disable" in power settings to enable idle from its original disabled setting. Not sure why that was off to begin with.

Idle/low load temps in RealTemp are now ranging from 28-40C. Thanks for the help everyone!
 
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