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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  • BRUCEUSA Dec 19, 2007

    I solved a similar problem today. My Dell laptop (Inspiron 8600) was becoming more and more difficult to power on, requiring more and more pressure. The problem, it turned out, was oxidation inside the micro switch. In my case, the solution was to get to the micro switch, GENTLY lift to one side the metal cover which encloses/caps the switch, & remove the rubber tab. At this point, I found a silver disk which I removed from the switch and discovered was tarnished. I placed the disk (tarnish side up) on a cloth towel and removed the tarnish by rotating a pencil eraser 6-8 times. When I reassembled the switch, the laptop worked like new. Total time: 35 minutes. This problem has been concerning/bothering me for months, so I'm really pleased . . . and wanted to share this with everyone who's having a similar problem. Bruce (

  • boxerjack11 Apr 11, 2009

    I have the same problem with my Dimension 8300, I had been on my computer for a while it then suddenly shut down. I have no idea to see if it has overheated but I have unplugged it and left it, turned it back on but nothing is working i also have the flashing power button. It has been a few days since it has last worked. I dont know if i have blown something on the motherboard or anything like that. Please help me!



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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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