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Re: Dell Dimension C521 power shuts off spontaneously
It sounds like your power supply fan may be overheating. The easiest way to determine this is to open the case and look at the fan while it is spinning- if it is indeed spinning at all. I find the best way to get an idea of the functionality of the fan is to shine a flashlight on it at an angle. If you can detect fluctuations in the rpm visually, you know where the problem is. Then it's a matter of changing out the power supply. If, however, the fan seems to keep the same rotation speed constantly, we'll need to look further. Let me know what you find out before we go deeper into the system.
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If the monitor gets no signal it will show orange. or ,It's hibernating or sleeping. Shut down computer, reboot, open Control Panel, Power settings, change to High Performance, change Hibernate to never or disable, change sleep to never or disable. Shut down the computer and monitor when not in use. It will last longer and reset the computer every day when turned on.
This is done 1 of three ways depending on how your restore information is stored. 1. After you push the power button start pushing the F8 key and when you get the option screen select restore to previous or restore to factory settings. This method works if your system has a special restore partition still. If you received System Restore Disk insert the CD in the CD player and reboot the system. It will boot from the CD and present the Restore menu for you to make a selection from. Your third choice is to select System restore from the system tools sub menu under the Accessories menu in your program list and chose to restore to factory settings.
This problem occures when ther is an conflict with drivers, so try to updat your Bios from dell web site orm you may try to update the video driver or have an option to replace it and try Try to boot the system safemode and chk if you get the same BSOD if not then its the video drivers
If the fan on your power supply is not turning then you need to replace the power supply as soon as possible. The machine is overheating and then shutting off. If the power supply is not replaced it can cause additional problems with the motherboard, cpu, and hard drive. Open your case and look on the power supply for your replacement parts number, check Ebay.com for a replacement. They are easy to replace, just a few screws and power plugs.
I hope this helps, if so please rate my solution.
Buddy Corporate Computer www.ccl-la.com Over 21 years of PC and printer support/repair
My first plan of attack would check Second the event log in the BIOS, looking for a heat event. Make sure your
fans are spinning, while you are in there get a can of compressed air
and blow out any and all dust. Sometime it becomes necessary to remove
the processor and put a little Artic 5 between the cpu and the heat
sync.I would check out the video card, the easiest thing to try first is to remove and update the video drivers. I still lean towards the heat event Idea... Hope this give you a headstart in the correct direction. Good luck, PS, if you are the one shutting it down and rebooting, look to the Video Card,
It was a faulty or worn out power supply fan. I just replaced it and the computer has been running for about an hour and a half and still no shut down. The system temperature is stable. It runs quieter now. New fan cost 13.88CAD.