Question about Dell OptiPlex GX520 PC Desktop

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Cpu fan of dell desktop otiplex gx520 running faster than usual with a loud noise . How can I resolve it?

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Either your fan is dirty or your fan is malfunctioning. If you have a warranty then call Dell to replace the fan (they will run some test first), or if you know how to replace the fan i would suggest that first.

Dell usually comes with a Diagnostic Disk that you can boot from to troubleshoot, if you do not have the disk then the built in Diagnostic Utility can help you. This will also help tell you if there is anything else wrong with the machine, the test takes long so be patient.

To get to the Diagnostics Utility follow these steps:

1. Reboot the computer and press "F12" and you will be taken to a "Boot Menu".
2. Select the Diagnostic Utility (might have a different name)
3. Walk through he steps to test your computer. This Utility will test everything that's why the disk is better. The disk will allow you to choose which test to run.

If you do not have the built in Diagnostic Utility and do not have the disk then visit the Dell website, choose support and type in your Service Tag number. Then download the utility, this site can also determine if you still have a warranty on the machine (but your GX520 is quite old and might be out of warranty)

Please rate if this helps

Posted on Mar 15, 2011

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Hi, I am Steve, lets get you some help
When you say you tried to change the fan I am guessing you did not manage to.
The computer has very few moving parts inside it so not much that can cause noise.
You have 2 real options
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Any fan that is making noise you would need to replace. There is also never a need to use alcohol to clean a fan. Some computer air or a light wipe down will do just fine.
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