Question about Dell Dimension 8300 PC Desktop

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Power button mulfunction?

Hi all, My 8300's power button has been acting strange; it requires a few pushes to turn on the computer. The frequencies increased last few days and now it completely refuses to repond. I checked the connector on the system board, checked the cable and called Dell Tech Support; but still can't figure out what's the problem. Dell Technician suggested changing the power supply, but he is not sure if that's going to solve the problem. I am thinking perhaps the power button is not working, but I don't know how to take off the front cover to examine it. Dell Technician suggested going to a repair store, but that's going to costly and not necessary helpful. Hope someone can help me here. Thanks. Skyer

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Re: Power button mulfunction?

Most front covers have screws that hold them to the chassis. Unscrew the screws and be careful not to break any wire connections to your front panel. Then you'll be able to examine the power switch.

Posted on Sep 22, 2007

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My computer was downloading windows updates overnight and froze. Tried turning it off from the power button, but did not work so I unplugged the computer. Few hours later I plugged the computer back in and...

You will have to get your power button unstuck. I do not know what type of button you have but if you would like to at least get your PC on without it instantly turning off, you can remove the power switch connector from the motherboard. You will eventually need to have the switch unstuck, or replaced though.

Oct 13, 2013 | Dell Dimension C521 PC Desktop

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I have dimension 8300 mother bord . it don t power on withe standar power sply when I plug the cable alumentation the fan works and when pushed Powerboton all shutdown

See my published guide entitled My Computer is not turning on!!! Is it dead!!! No POST!!!

Check the connections to the VGA on the Graphics card or the on-board VGA out put, whichever applies to you. Ensure they are making good contact.

The next step is to remove the graphics card if you have one and clean the contacts and then reinstall.
Next remove the RAM modules and clean them, reinstall one at a time in alternating slots. On powering on each time.

Take care!

Apr 19, 2011 | Dell Dimension 8300 PC Desktop

1 Answer

My monitor is a sleep and wont wake up

Hi Mellissa,
I have the same problem at times.
At the top right hand side of your keyborad there may be a half moon button.(THIS IS A SLEEP MODE BUTTON)
Push that button, wait for your computer power light to turn from blue to yellow.
Then lightly touch the power button on your PC, wait a few then tis should fix your issue, I hope.

Jan 10, 2011 | Compaq PC Desktops

1 Answer

How do i reboot my dell computer


The first way you can do so is Click Start, Turn Off PC, then select Restart.

Or you can push the restart button on your desktop. Should be right next to the main power button but smaller.

If all else fails, just push the power button, or hold it for a few seconds and it will turn the PC off. Then just power it back on.

Thank you for choosing Fixya.

Sep 26, 2010 | PC Desktops

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My computer does not turn on easy only lights flash

hmm sounds like your powersupply may be going

Dec 04, 2009 | PC Desktops

1 Answer

I have a HP Pavilion a1140n. The computer froze and was turned off by holding down the power button, but it would not boot up. No light appears on the power button, and when it is pushed, the DVD drive...

hmmm strange first thing id try is resetting the bios it seems it has been effected . remove case remove battery leave off for 3 minutes and replace try then again, while u have the battery out hold the power button on , oh and make sure the power is plugged out, and yeap hold power button for 3 secounds just to drain last of power from power supply. hope this helps

Nov 29, 2009 | HP Pavilion a1140n (PX774AA) PC Desktop

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Flat screen monitor functioning strangely

Sounds like there maybe bad caps on the power board in the LCD. Try a different monitor on your computer and if the known working monitor comes on with the computer and behaves properly then you know its a problem with your original monitor. If the known working monitor acts strange as well then you know its a problem with the video card. Let me know what happens.

Jun 11, 2009 | E-Machines eMachines Desktop PC

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How do I remove the power button on Dell Dimension 8300 desktop

open the side- and along the just inside the front exposed edge there are several tab that get push inward to release the front. They have a tendency to catch again when you go to the next'll just have to play with it a bit. once that is open you'll see the other little plastic tab that holds the switch assembly . Don't forget to UNPLUG the power supply.

May 14, 2009 | Dell Dimension 8300 PC Desktop

2 Answers

Computer has shut down and can not re-start

The Dell 8300 does not use industry standard parts. You need Dell specific parts in order to replace the fan. Here is a link to a replacement fan shroud assembly for your Dimension:
You may be able to find cheaper if you do a Goggle search and dig deeper. Hope this helps & please take a moment to rate this solution. Thanks.

Mar 14, 2009 | Dell Dimension 8300 PC Desktop

1 Answer

Strange behavior


Initially, pls try disabling the hibernation feature of your computer.

Other than that, would appreciate if you can post back the make and model of your computer.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 04, 2008 | PC Desktops

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