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Cabinet how to open & replace fan - noisy hum!!!

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Re: cabinet

Depending on which fan you're talking about usually the fan on the side or front are the easy ones to access. The front fan is a little harder but the front of your tower needs to come off. You should see release clip on both sides on the front of your tower when you remove both sides. If it's the heatsink (the one that keeps the CPU cool then you need to get one compatible and you need to buy some thermal paste as well. This paste helps discapate heat. Without it your computer will keep restarting. I hope this helps solve your problem

Posted on Dec 28, 2007

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Noisy computer fan

If its a loud "whirring" noise almost need to replace that's about to fail. if it's a vibration type of noise, you should try tightening the screws first...if it's coming from processor fan, replace it before you fry your processor...

Jul 03, 2012 | PC Desktops

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The Sound used to increase over a few hours. NOW the machine starts up REVED.... When you turn it on after letting it cool, it's silent until you start Windows, and the noise picks up a little. You...

Hello there! Noisy Sounds can be much frightening, but if you could determine from where the sound is coming on you will get the solution, the sound makers inside a pc are mostly fans, and what type of sound you are actually hearing, rattling sounds means some wires touching up the C.P.U Cooler fan, another one could be a loose fan on the SMPS. Solution to this is to Check all the Fans Do so by
1. Remove the Cabinet cover on one side and Start the machine and try to see and determine what actually is making the noise, rattling sound could be a wire or something touching the fan, if its okay, then listen for the SMPS fan.
Hope this Helps.

May 07, 2011 | HP Media Center Photosmart PC (M7160N) PC...

1 Answer

Power supply irratating hum

1st of all, are you sure it's the Power supply that is humming and not one of the Cooling Fans inside - Cooling fans are often a lot more noisy than power supplies. However, if it's definitely the power supply there's a couple of things you can try.
1st of all, it's never a bad thing to get your vaccuum cleaner out and (on a low power setting with the computer turned off) just vacuum out any dust that might be in the fan of the power supply.
2nd: Is the hum coming from the power supply itself or from something the power supply is vibrating against - try moving the unit a little, and ensuring that there's nothing wresting against it.
I'm presuming you've checked the cabling and ensured that the power cable (from the wall) is firmly connected? If you haven't checked that.
3rd - if you feel confident doing this, turn off the pc, open the case and just check to make sure that there are no internal cable resting on fans or on the power supply. Lastly, if none of things fixes the problem and your machine is under warranty, I'd send it/take it back to the place you bought it from for a replacement (remember to back up any data you have on your computer first though otherwise you'll lose it)

Mar 03, 2011 | Acer Gateway DX483105 Desktop PC Intel...

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My computer will not boot. The power will come on and the cooling fans will just continue running.

Open cpu cabinet.
Refix ram memory.
Pull cmos cell from motherbord 10 minutes then refix it.
Remove pci cards from motherbord if any .
Clean dust from all parts.
Open processor fan and processor refix both.
Make sure motherbord is not ground with cabinet.
Check motherbord in outside of cabinet.
Reconnect all connection to harddisk.
Let me know if you need more assistance.

Oct 31, 2009 | Gateway GT5220 PC Desktop

1 Answer

Hi I have a HP Pavillon a708 and the fan is almost constantly on. It's really noisy and seems to slow the PC down, is there anything I can do??

First, open up the case and gently vacuum all the dust, especially around the 2 fans.

If still noisy and the problem is the cooling fan (3-5 inches across), buy a replacement fan of the appropriate size at a PC store for $30 - $40. It takes 5-10 minutes to unscrew the old fan and install the new one, and just use the same electric wire from the old fan for the new fan.

If it's the CPU fan, you'll need to have your PC serviced.

Hope this helps.

Jul 09, 2009 | HP Pavilion a705w PC Desktop

2 Answers

Case coling fan is very loud

Hey there Ohio,

There are a few things that cause a normally silent fan to get noisy.

  • Dust building up - Unlikely, but check. Clean if necessary.
  • Some internal wiring brushing against the trailing edge of the fan blades - Likely only if the case was recently opened. Re-open and check, relocate the wiring if necessary.
  • The fan is getting ready to fail - Most likely. Replace the fan. If you have an unused computer, pull a fan out of that one to use. New fans are available for under $20.00 USD .

This replacement is very easy.
  1. Four screws out
  2. Unplug
  3. Remove old fan, put new one in.
  4. Plug in
  5. Four screws in
Don't wait until it fails, though. A cool computer is a happy computer.

Hope this helps,

Nov 28, 2008 | PC Desktops

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