What is normal CPU temperature?

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Astralv

Astralv

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I have 2 computers, Ivy and Haswell CPUs. Ivy shows Temp. 40C, while Haswell shows 56C. Both computers in BIOS now, running nothing. I thought, Haswell supposed to be cooler. The Ivy has 4 fans, Haswell only 2, but I was told 2 should be enough, besides- CPU are in BIOS- shouldnt's they have the same temperature? Is 56C a reason for concern? Thank you.
 
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DSzymborski

DSzymborski

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Haswells actually tend to run hot, but that's a very hot temperature for idle. First thing to do is check to see the thermal compound is properly applied and the heatsink properly seated. I'm assuming you're running at stock speeds. Are you using stock CPU fans? Even your Ivy is probably a little hotter at idle than I'd target.



 
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Astralv

Astralv

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Not sure about Heatsink. Both are stock CPU fans, no overclocking- everything at factory- no tweaking, other than enabling XMP profile for memory which changed 1333 memory to 1600 as it listed per specs. I did not have to apply any thermal compound as it preappied on the fan.
 
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Astralv

Astralv

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AISuit is a foftware that came with motherboard support disk. It includes FanExpert settings- confusing. It shows CPU temperature of near 40C on the computer that was 56C in BIOS yestarday. It appears- it is higher when computer in BIOS and goes down slightly when in normal oprtations. Any thoughts? What is the target temperature?
 
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DSzymborski

DSzymborski

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What does HWMonitor tell you? I've had odd temperatures in the BIOS before on both Intel and AMD builds.

Usually, the problem is the cooling solution and/or dust, but you seem confident that the cooler is properly seated and working and to get enough dust to cause problems in the 2 weeks Haswell's been on the market, you'd have to be emptying your vacuum cleaner directly into the PC or something.
 
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Astralv

Astralv

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Ha ha- this is very funny. I have no way to know for sure if it could be CPU fan placement. I installed it to my best abilities- the 4 legs went in to motherboard- if there a gap it attachment- I would not be able to see.

What is HWMonitor and where can I see it?

I should post it as separate thread, but Asus tech support guy told me the fans should be 4 pins in order for FanEpert to be able to control them. Not MOLEX 4 pins but 4 small pins connected to the MoBo. My fans have 3 pins. I get strange readings in Fan Expert. It would say- my front fan is 400 rpm, (it is 200 mm fan), and back fan is some time 1200 rpm, some time like 380 rpm. If I do not have 4th pin, the motherboard should not be able to change fan speed. Also the back fan I had to remove and install back and I do not know which way it should go to create exhaust effect, so I just put it in. I feel some air comming from the back, but there is a chance it may be installed as Intake. Also the case has open top and open mash side. I want to install 2 more fans. Would that help? How do you tell which way to install the fan?
 
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DSzymborski

DSzymborski

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HWMonitor is monitoring software that's free in it's basic edition - check the web, it's all over the place. Without the obvious solutions, it would first to be good to get another internal opinion on what the temperatures really are.
 
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