Question about Dell OptiPlex GX260 Intel Desktop PC - Intel Pentium 4 2GHz, 256MB DDR, 40GB HDD, CD-ROM, Windows XP

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Optiplex gx620 black screen stuck on safe mode cant do nothing the green light turns on and makes a beep noise

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  • aquatic_logi Mar 12, 2009

    they look fine no leaks or swelling where can i find the power supply

  • aquatic_logi Mar 13, 2009

    no i dont have the four ABCD diagnostic lights is there anything else we could do before i replace the power supply. and i found a cable connection not connected. its a foxconn p6

  • Anonymous Mar 23, 2014

    only makes buzzing noise when startup/ging to sites/opening sites/icons on desktop



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Look at the motherboard (mobo). Failure of motherboards is usually due to breaking capacitors. A few years ago a capacitor company stole the "recipe" for making capacitors from another company and tried to make their own, unfortunately they did not get the ingredients right and the capacitors started breaking after 2-3 years of use. They sold these capacitors at very cheap prices and a lot of computer companies and power supply makers bought them. This is easy to diagnose. Look for capacitors (caps) (they look like little tiny soda cans) on your motherboard (mobo). They should be perfectly flat on top and not bulged or swelling or leaking anything.
You could also try to change out the power supply if you can find another one that fits it.

Posted on Mar 11, 2009

  • computerscot Mar 12, 2009

    The power supply is where your cord enter the back of the machine. It is a box aproximately 3-4 inches square. You will see a bundle of wires leaving it and going to various places on the motherboard and devices. If you replace it get a power supply of the same or greater output watts. There should be a sticker on the power supply itself that states how many output watts it is. If this will be your first time replacing a power supply then take a pad and pencil and write down each wire that you take off so that you can put that many more back on. I would take the power supply with me to the store and have on of the sales people get you an adequate one. Note that if you have added a better video card or other improvements you will need a more powerful power supply. You can always sticck in a bigger one, but never a smaller one.

    Also do you have the four ABCD diagnostic lights on the back of your computer?

  • computerscot Mar 18, 2009

    There are usually some "extra" connectors in the bundle coming from the power supply. They are for hooking up other devices. It sounds like you may have a bad power supply. I would try that first. If you have to buy a power supply, I would ask about the stores return policy if it does not work.

    I just found this thread on the dell site talking about some places having a high failure rate of PSU's in this model GX620

    If your model is still under warranty I would contact DELL to see about getting a replacement. If it is out of warranty I would still contact them since there is a known issue with these power supplies. I have gotten DELL to replace some stuff out of warranty before. It doesn't hurt to ask.



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hi there
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