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Temperatures on i5 6600k's reporting incorrectly

post #1 of 7
Thread Starter 
Hello, I have 2 x 6600k's. Just bought them brand new along with all other parts from the local brick&mortar. Although it seems I am having an issue with BOTH of the cpu's? They are 100% identical computers:
CPU: i5-6600k
Mobo: MSI Krait Z170a Gaming
CPU cooler: CoolerMaster Hyper 212 Evo (push-fan)
Video Card: EVGA GTX 970 SC
PSU: EVGA 750w G2
Ram: Corsair Vengeance 16gb 2400mhz DDR4

In any monitoring program I am seeing abnormal temperatures (below ambient) on both of them while idling. They are identical computers except for the cases..

Ambient temp is currently 18.5*c with a cold 12*c wind blowing directly into the case.

Computer 1 (I'm most concerned about), generally at idle has temps between 8*c and 14*c, load temps while stress testing with IBT is between 44*c and 56*c.

Computer 2 (closer to ambient, but still lower), generally at idle has temps between 14*c and 18*c, load temps while stress testing with IBT is between 58*c and 64*c


Programs I've used to monitor temps:
RealTemp
CoreTemp
HWMonitor
MSIAfterBurner

Should I just go back to the store and get all new CPU's and Mobo's or, would it be ok? I have used a temperature gun to measure temps on mobo and base of CPU cooler, and nothing every above 45*c anywhere. Or am I doing something wrong with monitoring the temps?
post #2 of 7
Thread Starter 
Forgot to include the pictures:
Computer 1:


Computer 2:
post #3 of 7
The temperature variance is probably due to how the IHS (Integrated Heat Spreader) has thermal paste between the CPU DIE and the IHS. Also the distance between the IHS and the CPU die will have an impact too as more thermal paste would be required between it resulting in worse thermal performance. It's really a hit and miss from CPU to CPU on these CPUs, the difference is something I wouldn't worry about unless it was performing really bad in thermals like 95°C on load.

If the CPUs had soldered on IHS's then the temperature variance would be minimal and the temperatures across cores would be more closer to each other. Like during the Core 2 Quad days or older CPUs. I know some enthusiast grade CPUs still have soldered on IHS's.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
post #4 of 7
Thread Starter 
I was more concerned of the fact that I know those idle temperatures are false, considering they're below ambient on an air cooler. So are those load temperatures accurate? Is it also reporting load temperature lower than what it actually is? Or would load temperatures be accurate?
post #5 of 7
Ive used Realtemp and Core temp for years, ive never had an issue with them lol. Those temps seem awfully low , but Ive had this certain set up in my desktop below. I mean its very very possible to get those low temps. mine boots up at 29c and rises to 33c on all cores. If your temperature gun or whatever your using is reading the low temps too I truly wouldn't worry about it. two separate pieces doing the exact same thing tells me its ok wink.gif
post #6 of 7
Load temperatures are accurate. Its the idle temperatures that can be inaccurate.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
  hide details  
Reply
post #7 of 7
Thread Starter 
Quote:
Originally Posted by benjamen50 View Post

Load temperatures are accurate. Its the idle temperatures that can be inaccurate.

Thank you! That's exactly what I wanted to know. Idle temps don't bother me, as long as the load temps I'm seeing are accurate is what matters.
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