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Topic Title: PC Boot up Problem
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Created On: 08/15/2009 02:19 PM
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 08/15/2009 02:19 PM
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BombR
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When I BOOT up my PC I get this:

***WARNING: Your computer CPU Fan Fail or speed too low*** You can also disable this warning message in SETUP.

I got a ASUS M3N72-D SLI. I never went into BIOS or anything....

Here's two pictures of my BIOS.. See if somethings wrong...


 08/15/2009 02:55 PM
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Mime
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If your temperatures aren't out of whack and the machine is behaving fine just disable it. Some BIOSs have options like that as a sort of fail safe in case something goes wrong and a fan or something dies on you.

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 08/15/2009 04:39 PM
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MrWicked1968
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what are your other options besides "DC" in the fan type selection?

if you're not using the cpu fan header on the motherboard, you should definitely disable the low cpu-fan warning.

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 08/15/2009 05:44 PM
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Immortal Lobster
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Some fans also just won't spin if they don't get enough volts, I know with my EPoX and smartfan enabled, my Blue Orb just stops spinning, turns into a passive cooler at that point, nothing wrong with it, provided the fan does spin up once it needs to, if that's the case, just disable the alarm.

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 08/20/2009 04:20 PM
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BombR
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Besides the "DC" It has "PWN" or something
 08/20/2009 04:34 PM
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Immortal Lobster
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PWM, Pulse Width Modulation, I highly recommend it.

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 08/20/2009 06:42 PM
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bbcs62
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Originally posted by: Immortal Lobster

Some fans also just won't spin if they don't get enough volts, I know with my EPoX and smartfan enabled, my Blue Orb just stops spinning, turns into a passive cooler at that point, nothing wrong with it, provided the fan does spin up once it needs to, if that's the case, just disable the alarm.


This is what I was thinking also. My kids computer is very sensitive to voltage input on the CPU fan, and dropping it much will result in the fan stopping then starting almost at random.

I would suggest using the PWM control and then adjusting voltage to get the right kind of temperature/cooling balance you are looking for.
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