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CPU Core 4 is cooler

post #1 of 11
Thread Starter 
Noobie here, built my first ever computer. Question, running Core Tempe and looks like core 4 is 10 degrees cooler than the others. Is there something wrong?

Core 1 - 29*C
Core 2 - 29*C
Core 3 - 31*C
Core 4 - 22*C

CPU: Intel 3770K
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post #2 of 11
Nothing wrong, there is always some variation in the temps. If youre worried about it, pull your heatsink and reseat it.
post #3 of 11
Thread Starter 
Quote:
Originally Posted by RX7-2nr View Post

Nothing wrong, there is always some variation in the temps. If youre worried about it, pull your heatsink and reseat it.

Well since it's cooler, maybe the heatsink is working fine. I'm using the Corsair H100i to cool the CPU. Was a bit worried the temp variations was odd.
1st ever build
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Intel 3770k ASUS Max V Extreme EVGA Titan Corsair Dominator 16GB 1633 
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post #4 of 11
Large variations can sometimes be caused by uneven pressure on the heatsink or thermal compound that didnt spread correctly.
post #5 of 11
^^^ This.

My 3930K had one core that was always consistently hotter than the rest, and removing the H100i water block, cleaning it, and re-applying thermal paste fixed it. Now all of my cores are within 3-4C at idle and 4-6C at full load.

Sometimes there's nothing you can do to equalize the temps. It could be something uncontrollable like unevenly applied TIM or solder underneath the integrated heat spreader from Intel.

10C isn't the worst I've seen. Had an associate with a quad core that was 14C between hottest and coldest cores at 100% load. I thought it was a little extreme. Idle temps are completely unimportant.

Greg
post #6 of 11
Thread Starter 
Ran prime95 (CPU stress test) for an hour.

Average

Core 1 - 60*C
Core 2 - 64*C
Core 3 - 66*C
Core 4 - 58*C

Max

Core 1 - 60*C
Core 2 - 64*C
Core 3 - 67*C
Core 4 - 60*C

Stock 3770K, will overclock in the future. Just want to make sure everything is ok.
Edited by WiLd FyeR - 3/25/13 at 9:42pm
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intel 730 350d 
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1st ever build
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post #7 of 11
I agree with hammong

Another thing to remember is the core under that IHS is vertical and some cores will always run hotter/cooler due to their location and what they control.. I'll try to find the post where a gentleman explained it way more in depth so it makes proper sense smile.gif
  
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post #8 of 11
my 1st core is 9c cooler than my 3rd core. your fine. thumb.gif
    
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post #9 of 11
Thread Starter 
Okay, now that I think about it. It's running cooler so that's a good thing.
1st ever build
(13 items)
 
2nd Build
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CPUMotherboardGraphicsRAM
Intel 3770k ASUS Max V Extreme EVGA Titan Corsair Dominator 16GB 1633 
Hard DriveOSMonitorMonitor
Intel SSD Cosair H100i Win 7 Pro ASUS VG248qe 
KeyboardPowerCaseMouse
Corsair K90 Corsair AX850 Phantom 630 Corsair M60 
CPUMotherboardGraphicsRAM
4970k gene vii 750 ti corsair dom 
Optical DriveCase
intel 730 350d 
  hide details  
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1st ever build
(13 items)
 
2nd Build
(6 items)
 
 
CPUMotherboardGraphicsRAM
Intel 3770k ASUS Max V Extreme EVGA Titan Corsair Dominator 16GB 1633 
Hard DriveOSMonitorMonitor
Intel SSD Cosair H100i Win 7 Pro ASUS VG248qe 
KeyboardPowerCaseMouse
Corsair K90 Corsair AX850 Phantom 630 Corsair M60 
CPUMotherboardGraphicsRAM
4970k gene vii 750 ti corsair dom 
Optical DriveCase
intel 730 350d 
  hide details  
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post #10 of 11
Intel does not use 100% accurate temperature sensors. The amount of variation you are seeing is within the normal range of +/- 5C. These sensors are only intended to be used for thermal throttling and thermal shut down control so there was no need for Intel to spend extra money on uber accurate sensors so they didn't. Stop worrying and start overclocking. thumb.gif
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