Question about Dell Dimension 4700 PC Desktop
I replaced the CPU fan, because I couldn't tell which fan was so noisy all of a sudden. I did clean out inside the chassis, also. The air blowing out is not particularly hot. The pitch of the fan sound does rise and fall. Should I be worried about my power supply or anything else? Thanks for any advice.
All the above answers are correct to some extent. Problem is that your fan hasn't stopped. It's hard to diagnose something that isn't broken.
Depending upon how critical the computer and your finances, your fix could be:
1: Do nothing and wait for it to stop working.
2. Spray fans with DW40 and wait for it to eventually stop working.
3. Replace first one, then the other fan.
4. Replace both fans at the same time.
5. Replace computer.
Posted on Jun 03, 2010
The best way to test to see what fan is noisy, is to turn on your computer and tap each fan in the middle lightly, if the nosie stops for a second, you've found your fan. The best way to clean a dirty fan is a can of compressed air, and follow directions carefully.
I wouldn't be worried about your power supply fan. Unless it has hair on it from any animals, than I would give it a couple quick sprays of air. It sounds like you did a good job. :)
Posted on Jan 04, 2009
On many Dell models the fan speed is controlled by the system. So it is normal to hear the fan speed up and then slow. If you feel warm air leaving the PC its likley in good shape. There is a fan in the powersupply too, and if its going out it will usually squeel or make a vibrating noise. if its just high speed fan noise, thats normal.
Posted on Jan 04, 2009
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Posted on Jan 02, 2017
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