Topic Title: strange temp with FX 6350
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Created On: 09/02/2013 04:05 PM
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 09/02/2013 04:05 PM
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fred13
Peon

Posts: 4
Joined: 09/02/2013

Hi everybody

After a few years with phenom II X4 945 , I've now an FX6350 , working really fine. One little thing is disturbing me: On idle , temp (speedfan , or aida 64) jump from12° to22° in one second (12 and 22 just for example) then in the same time , go down to 15°,then 20° ........

But with 100% CPU (aida cpu stress test) , after a few seconds , I have a real straight line 40° .

What is the meaning for this jumping idle temp ?



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Gigabyte GA990XA UD3-AMD FX6350/Noctua NUH9-Crucial ballistix 4x4Go-Samsung 830-Seagate 1To-WDGreen 500Go- W7 64-

 09/02/2013 05:38 PM
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black_zion
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Cool N Quiet. It's normal.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 09/03/2013 07:13 AM
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fred13
Peon

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Originally posted by: black_zion Cool N Quiet. It's normal.

But when using phenom II with same bios , idle temp was always about 20° , sometimes moving from 20 to 21 , or 20 to 19 . I never had 10° jump !?



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Gigabyte GA990XA UD3-AMD FX6350/Noctua NUH9-Crucial ballistix 4x4Go-Samsung 830-Seagate 1To-WDGreen 500Go- W7 64-

 09/03/2013 08:53 AM
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black_zion
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Because newer processors are better at saving power when not needed. It's normal.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 09/03/2013 02:25 PM
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fred13
Peon

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ok, thanks for these answers.

it's always better to know "the reason why".



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Gigabyte GA990XA UD3-AMD FX6350/Noctua NUH9-Crucial ballistix 4x4Go-Samsung 830-Seagate 1To-WDGreen 500Go- W7 64-

 09/08/2013 05:02 PM
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AMDforMe
Farming Materials

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Newer AMD processors have multiple "power planes" allowing both the CPU voltage and frequency to be altered based on load. This is why under low load the CPU/APU temp can literally jump 10 degrees almost instantaneously.



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Building a reliable PC involves more than just assembling the parts. You need to be able to configure all of the BIOS settings appropriately. This can be quite involved and frustrating as it can require a lot of trial and error with stress testing. It is however often the only means to get a 100% reliable PC.

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