20 Most Recent Dell Dimension C521 PC Desktop Questions & Answers

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Dell Dimension... | Answered on Sep 22, 2017

This means that you have an external video card (which is not outside the computer). This video card will be plugged into the motherboard. That message is saying that the port on the back of the computer that your monitor is plugged into is the wrong one. You need to look for another port on the back of the computer.

Here is a picture of a VGA port that you should use if you have a VGA cable to connect the monitor (Blue Ends).

Here is a picture of a DVI port that you should use if you have a DVI cable to connect the monitor (White Ends).

So depending on the cable and connections that are available on your computer and your monitor depends on what you have to use. I hope that wasn't too confusing. Let me know if you need more info.

Dell Dimension... | Answered on Dec 07, 2016

if you have an internal video card on the board and one in a PCI slot make sure you have the one you are going to use plugged into the VGA

Dell Dimension... | Answered on Jul 02, 2016

Cmos ng, motherboard ng, bad peripheral, bad memory, power supply?

Start checking.

Dell Dimension... | Answered on Jan 08, 2016

Hello, Open the case of the computer and look for the battery on the motherboard, slide the battery out and put a new one in it. You will have to reset the bios and the date and time.

Dell Dimension... | Answered on Nov 01, 2015


Did the system come with a Factory Reset CD? If it did, use that.

Dell Dimension... | Answered on Sep 26, 2015

Were you locked out of windows? Clearing the CMOS will not fix that, it will only set your motherboard to standard factory settings. It is possible that in clearing the CMOS you have lost settings that are required to have the system start and until you reset those you may not be able to exit the bios.

Dell Dimension... | Answered on Aug 12, 2015

Go to link below just over half way down.


Please rate 4 thumbs for the free answer

Dell Dimension... | Answered on Jul 19, 2015

press f2 go to the boot priority and select harddrive to the first boot.

Dell Dimension... | Answered on Jun 27, 2015

Bad boot attempt. Try to reboot from cold for 2 minutes. If it still won't boot up the mother board is dead.

Dell Dimension... | Answered on Jun 23, 2015

This gives you a list of every possible fault on this machine! It looks like you will have to contact DELL directly on this one!

Dell Dimension... | Answered on Apr 17, 2015

It's not really a virus, it's adware. Removal instructions: http://www.liamdelahunty.com/tips/fun_web_products.php

Dell Dimension... | Answered on Apr 16, 2015

The downloads will work but what is not mentioned is the format that you wish to run and so the quality in question.These cards can be used specially for downloading from the web and when it comes to good quality maybe it is worth testing for first hand view to testify the case. You can get help is you visit any accessories store from where the card is to be bought as it can be tested on your PC before any money is spend as trial.

Dell Dimension... | Answered on Jan 15, 2015

It's seems that this model don't have a integrated wireless adapter.

Dell Dimension... | Answered on Dec 04, 2014

You can press the button on the front of the cdrom and the cd drawer will open.Insert the cd and then you can then press the button to close.
Thank You,
Dell-Jesse L
Dell Social Media and Communities

Dell Dimension... | Answered on Oct 15, 2014

Windows Vista and windows 7 both work on this pc i installed windows 7 it works just fine.

Dell Dimension... | Answered on Jul 11, 2014

How old is the computer, could it still have warranty? USB ports are often protected with fuses. Some latest stuff has resetable fuses, but many are one-time that do not heal. Did you try the keyboard in the front USB's The thing of biggest concern though is that this happened in coincidence, meaning you may have a motherboard hardware failure. (the reason I mentioned warranty)

Dell Dimension... | Answered on May 14, 2014

A steady or Amber blinking power button indicates a low voltage problem. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.

Dell Dimension... | Answered on May 01, 2014

Check your graphics card settings and all your cables.

Dell Dimension... | Answered on Apr 24, 2014

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