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CPU Fan goes really fast randomly?


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ExodiusUK ExodiusUK is offline
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01-Sep-2011, 07:58 PM #1
CPU Fan goes really fast randomly?
Hello,

im having a few worries about my new system, i just recently got my desktop pc last week and for some reason it seems to be going really loud and fast? is this normal or do i need to change something?

screenshot of Asrock Overclocking Program: Please note: i haven't overclocked anything that i know of.



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Now at the moment it shoows around 3000RPM on the CPU Fan, but was at over 5000RPM in the red when it was going really fast.

Thanks for your help in adavanced.
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Triple6   (Rob) Triple6 is offline
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01-Sep-2011, 08:03 PM #2
Can you post a screenshot of the temps when its running normally and when its really loud?
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01-Sep-2011, 08:06 PM #3
My CPU fan goes really fast (speeds up) at times also.
It is because I have Celeron D 3.2Ghz cpu which gets hotter during certain cpu loads.

Celeron D 3.x cpu's get hotter because it has 65watt with 65nm technology.

If your cpu as that similar technology this may be the reason your fan speeds up randomly.

Also have you over clocked your cpu? Which can be dangerous. You may need to get a higher rated heatsink and more efficient fan if you have overclocked your cpu.
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01-Sep-2011, 08:16 PM #4
Hello,

I havent overclocked no, ive added some more screenshots:



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Triple6   (Rob) Triple6 is offline
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01-Sep-2011, 08:25 PM #5
Its probably going over 50 degrees and the fan is kicking in as per the Asrock utility to keep the CPU at 50 degrees or below. Do you have a stock AMD heatsink or an aftermarket cooler/fan? You may also want to change the Target CPU temp to 55 or 60, but not any higher. But under heavy CPU load it may still rev up to keep the CPU cool.
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Triple6   (Rob) Triple6 is offline
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01-Sep-2011, 08:27 PM #6
42 degrees on the motherboard seems high, can you post the complete specs of the system including the case, power supply, and all fans.
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01-Sep-2011, 08:35 PM #7
Hello, its doing it again now go really fast and here is the screen shots:



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01-Sep-2011, 08:39 PM #8
AMD Phenom X6 Six Core AM3 2.8GHz x6
8GB DDR3 RAM
1TB HDD
ATI HD5450 1GB Graphics
ASROCK MotherBoard
500W Power Supply
Custom Case
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Triple6   (Rob) Triple6 is offline
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01-Sep-2011, 09:09 PM #9
Is the heatsink/fan a stock AMD one an aftermarket one? Also was the system re-assembled for you or did you assemble?

You didn't post the temps, but the clock speed is at full so it makes sense the temp would increase and so would the fans.

The case and power supply should have brand names and model number, the Asrock motherboard has a model number as well. How many case fans, what are there location, and which way are they blowing?
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