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AMD FX-8350 strange behaviour

post #1 of 4
Thread Starter 
Hi all

I hope I am posting this in the correct categori.

So my new AMD build is running along merrily...well not quietly since I added some coolermaster SP120 fans connected directly to the PSU.

I am however picking up some very strange temperatures on the CPU. It would show 11-15 Celsius at idle, sometimes even below that, which is impossible due to the ambient temp being about 20 Celsius.

The motherboard(asrock 990FX extreme3) seems to give more accurate temps, but after a while of gaming, sometimes, the cpu temp on the Asrock Extreme tuning utility would show -2 Celsius, and a motherboard temp of -3.

Has anyone else experienced this? I did an update to the latest BIOS, and the -2 has not shown face yet, but it is too soon to tell. The CPU readings in hwmonitor and coretemp are still very low.

Has anyone else experienced this? Is there an offset required on these chips to get the correct temps? Regardless of this, the AXTU behaviour of negative numbers are still very odd
post #2 of 4
I not seen negative temps since winter on mine, but generally you follow guidelines under 40C you follow the cpu/socket temps over 45C u follow core/package temps

idle temps will always be low generally thats why we take no notice of them smile.gif

hwinfo64 is better to follow temps volts than hwmonitor too

I wouldnt trust board software, i dont have mine installed because of the same issues you are seeing, false reporting etc etc
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FX-8370 asus sabertooth 990fx R9 290 DC2 kingston hyper x beast 1866 
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fractal design kelvin s36 windows 10 pro Acer G245HQ Saitek Cyborg V5 
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My Rig
(11 items)
 
  
CPUMotherboardGraphicsRAM
FX-8370 asus sabertooth 990fx R9 290 DC2 kingston hyper x beast 1866 
CoolingOSMonitorKeyboard
fractal design kelvin s36 windows 10 pro Acer G245HQ Saitek Cyborg V5 
PowerCaseMouse
EVGA SuperNOVA 1000 G2 Corsair Graphite series 780T corsair m90 
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post #3 of 4
Thread Starter 
Thanks for the response.

Is that if the socket is over 45 C? As I tested it with prime95 yesterday, and when the Asrock Tuning utility showed 49 C(socket temp), the core temp showed 26 C...Which seems highly unlikely. In my country it is still about 20 C during most days in winter, and we almost never get ambient temps in the minus, with the exception of some early mornings in winter.

I'll have a look at hwinfo64, thanks for the advice.
post #4 of 4
Quote:
Originally Posted by g04tm4n View Post

Thanks for the response.

Is that if the socket is over 45 C? As I tested it with prime95 yesterday, and when the Asrock Tuning utility showed 49 C(socket temp), the core temp showed 26 C...Which seems highly unlikely. In my country it is still about 20 C during most days in winter, and we almost never get ambient temps in the minus, with the exception of some early mornings in winter.

I'll have a look at hwinfo64, thanks for the advice.

Anytime, most of the time you will see a 10c difference between socket temps and core temps

with a 20c difference, its highly likely something isnt quite right, possibly too much/little thermal paste or HS seating...

Yes over 45C socket you will generally follow core/package temps and under that u follow cpu/socket
My Rig
(11 items)
 
  
CPUMotherboardGraphicsRAM
FX-8370 asus sabertooth 990fx R9 290 DC2 kingston hyper x beast 1866 
CoolingOSMonitorKeyboard
fractal design kelvin s36 windows 10 pro Acer G245HQ Saitek Cyborg V5 
PowerCaseMouse
EVGA SuperNOVA 1000 G2 Corsair Graphite series 780T corsair m90 
  hide details  
Reply
My Rig
(11 items)
 
  
CPUMotherboardGraphicsRAM
FX-8370 asus sabertooth 990fx R9 290 DC2 kingston hyper x beast 1866 
CoolingOSMonitorKeyboard
fractal design kelvin s36 windows 10 pro Acer G245HQ Saitek Cyborg V5 
PowerCaseMouse
EVGA SuperNOVA 1000 G2 Corsair Graphite series 780T corsair m90 
  hide details  
Reply
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