Question about Dell Dimension 4700 PC Desktop
The fan in my Dell desktop runs very fast from time to time, and for no apparent reason. Is that an indicator it is getting ready to go out or something?
First check to make sure fan is pulling air out of computer instead of pushing it in,then pull blue wire out of 4-wire fan plug on mobo,then join this wire to black ground wire of 4- wire plug. plug connector back in mobo. power up computer ,problem solved.
Posted on Mar 12, 2009
Check your manual for instructions to see if CPU temperature monitoring is done in that system.
You may be able to view that actual operating temp. of your processor.
If that system is so equipt, then it is very possible that the fan speed is regulated by temperature and it will vary according to ambient and internal temperature to conserve a tiny bit of power.
If nothing else, you can block airflow into or out of the system box to see if the fan speed increases after a few minutes.
Blocking the exhaust in the back of the unit will probably be enough.
NOTE: DON"T walk away if you decide to experiment - you may fry some chips and those don't taste good at all!
Posted on May 06, 2008
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Posted on Jan 02, 2017
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