fan will constantly for a few seconds

I have a Dell Inspiron 580 desktop PC which worked well for a while, but now the fan is constantly on and outside.  The machine is not too hot.  It's annoying and I'm afraid something will happen worse.  Please can someone advise

Do you know which fan did this, for example fan CPU or video card?

  • If the CPU fan, reboot and press F12. Go to the utility partition and run the diagnostics of fan.  If it fails, replace the fan with another fan CPU OEM Dell.
  • Power off, unplug and press / hold the power to open the case ~ 15 sec and use canned air to blow out all the dust bunnies of the card mother, heatsink of heat, expansion card and all the fans. Also, make sure that the vents are clear.  Case and see if that helps.
  • If the video card fan, try reinstalling the video card carefully in its niche.

Thermal paste between the heatsink and processor can also be dried and must be replaced. You will need to remove the heat sink (see the manual for more details), clean both surfaces and apply a thin layer of fresh dough (for example, Arctic Silver). Reattach the heat sink, then fix it in place in accordance with the instructions of the manual.

Tags: Dell Desktop

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