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Dekstop can't operate normally


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#1 ezooone

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Posted 30 January 2010 - 01:46 PM

I don't know whether this problem is in internal or external hardware..well..it is about my old computer..it cannot start normally as usual..sometimes when I want to turn on my desktop..the fan will running only half way and then the computer won't start at all..I have to switch off my plug several times to make the computer to operate normally..can anyone help me? :thumbsup:

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#2 MrBruce1959

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Posted 30 January 2010 - 02:16 PM

I'm not exactly sure what you mean by "the fan will running half way"

Does this mean you start the computer up and the fan spins breifly and then stops?
Which fan are you refering to, the processor cooling fan or the power supply cooling fan?
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#3 ezooone

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Posted 30 January 2010 - 09:02 PM

I'm sorry because I didn't mentioned what kind of fan..hehe..it was the processor colling fan.. :thumbsup:

#4 Broni

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Posted 30 January 2010 - 09:41 PM

It may be failing power supply.

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#5 MrBruce1959

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Posted 30 January 2010 - 11:53 PM

It may be failing power supply.


Your probably right on that.
But Im still confused as to whether its a case of the processor fan failing to keep the processor cool so the PC shuts down, or the power supply fails.

The discription is not clear enough to solve this problem effectively.

Altough resetting the power supply by removing the power plug, could mean a failing voltage regulator, or an over heated one.

As for a fan that stops abruptely, try cleaning the area around all fans with compressed air, making sure the fans do not spin during this process, as this can cause the fan to create a voltage going back into the motherboards power circuits.
Be carefull when cleaning power supply fans, as the componants inside can hold a lethal voltage, even when the power plug is not plugged in.
Blowing dust out of the power supply unit will help a lot as well.

Good luck to you.
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#6 ezooone

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Posted 31 January 2010 - 07:23 PM

I want to clean the fan yesterday but the fan does not dirty at all..even the fan at the power supply..I think it because of the power supply.. :thumbsup:




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