Hi Kavin,
I understand your concern. Apart from the steps suggested by other user, you may follow the troubleshooting steps below which might be of some help in resolving this issue:
1) Beep codes at system start up may be due to some hardware failure. You may run an onboard diagnostic test on your computer by following the steps below:
> Restart your computer and tap F12 at Dell logo.
> Highlight diagnostics and hit Enter to initiate the test.
> Make a note of error code if any.
In case you get any error code, it is an issue with system hardware and might need replacement. For more information, you may refer to link: http://dell.to/140XDxC
2) Clean the air vents: You may use a can of compressed air to clean the air vents. Please ensure to power off system and remove the AC adapter and battery before you perform this step. For more information on cleaning the vents, please visit the following link:
http://dell.to/12ir7Ws
3) Update system BIOS
Make sure the ac adapter is connected and the battery is charged 10% or above to update the BIOS. Also, disconnect all the external peripherals before updating the BIOS. All the programs should be closed and documents saved.
Link to download system BIOS: http://dell.to/165pYmL
4) To reduce CPU usage by different applications, you may also perform a clean boot and remove the unwanted programs and services from start up. For more information on this, you may refer to link:
http://dell.to/12nKIFL
You may also optimize the operating system for a good performance. For detailed information, you may refer to the following link:
http://dell.to/YVx5KM
5) Run diagnostics on system fan: You may run a custom test on the system fan to ensure the correct functionality. Your might have received a drivers and utilities disc with the computer, you may use that to run custom test on system fan by following the steps below:
- Insert Recovery CD
- Shut down and restart the computer.
- When Dell logo appears, immediately tap
repeatedly
- When the boot device list appears, highlight the option CD/DVD/CD-RW and press
- Boot from CD-ROM from the menu that appears and press
- This message appears ‘Press any key to boot from the CD’
- Promptly hit
- Select Custom Test > System Fan and follow the prompts.
For detailed instructions on running custom test on system fan, you may refer to the following link:
http://dell.to/165C28m
To run diagnostics online, click on the following link: http://dell.to/11nonGr
If the diagnostics fail and the issue persists, system fan might need replacement.
Hope this helps.
Thanks and Regards,
Chinmay S