New build PC always overheats on cold boot

Cass

Cass

Cass

Associate
Joined
22 Mar 2014
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3
Hey guys,

I have a peculiar problem with the new PC I've recently built. After finishing the build I noticed that, on booting, the fans would slowly get louder and louder and the screen would begin to lag and stutter.

I installed CPUID HWMonitor and that showed normal readings on everything but TMPIN1 at 127 degrees (constant and unvarying, almost certainly a busted sensor somewhere since my PC is not on fire) and TMPIN2, which starts off at around 30 and then climbs to 90 (!) at the worst of the lag and stuttering. Strangely, this temperature creep disappears completely after a restart, and the PC will remain stable indefinitely after that.

So I'm stumped. Google doesn't seem to know and I'm hardly knowledgeable. Anyone have any clue what's going on?

Thanks in advance! My build:

Case
CPU: Intel i5 4670k
Motherboard: Gigabyte H87M-HD3
Graphics card: MSI GT 770
PSU: Corsair 750W
RAM: Kingston 8gb 1600MHz DDR3
SSD: Samsung 840 EVO 240gb
HDD: Seagate 2tb Barracuda

If I've missed anything please let me know. Thank you guys!
 
The 127c is "normal", it is most likely an erroneous sensor that the program is picking up.

Which fan is speeding up, did you make sure to install all your drivers for your motherboard chipset, how long does it take to hit the temp, stock or after market cooler, have you walked the dog today?
 
Thanks for replaying cola.

  1. It sounds like it's the two at the front, how can I tell for certain?
  2. Yes, motherboard drivers and BIOS all up-to-date.
  3. Computer tends to hit 90 degrees after about 15 minutes of use (idling takes longer) and performance is affected around 5 minutes after that.
  4. Corsair Hydro series H60 cooler.
  5. Long, enjoyable walk in which the yappy little **** didn't embarrass me once. And he pooed three times! Record.
 
If you put your hand in front of the fans you should feel more air than usual. You could also put a finger on the fans middle part and slow it down a bit, if the noise get quieter it will be that fan.

The problem is finding what that sensor is, as TMPIN2 is not exactly forthcoming. If I was to guess, I would say it is a sensor on your motherboard.

Have you checked the temp with this program, it might provide more information.
http://www.hwinfo.com/download.php
 
All my previous Gigabyte boards usually have TMPIN2 sensor as the nb, though its odd for it to overheat so easily. As for TMPIN1, I find HWMonitor usually makes up a random temperature which doesn't change if a sensor is not there or it is faulty. Have not used Hwmonitor for temps in a long time though.

Interested to know what the issue is.
 
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