Dell OptiPlex GX260 PC Desktop Logo
Posted on Nov 01, 2007

Optiplex GX260 won't boot

I have an optiplex GX260.  Started running slowly, even to come off screensaver, then just died.  Now, it shows a green power light, the MOBO shows an orange light, the power supply fan is running, the HD spins....but it will not boot or even give any BIOS beeps.  The monitor says no signal.  I have reset the MOBO by unplugging and letting it sit...nothing.  What could be causing this?

  • 4 more comments 
  • Selky Nov 01, 2007

    Just wanted to clarify, the light on the MOBO is orange, the front panel light (power button) shows green. I'm not sure what you mean by the monitor, but I assume not the screen. Before I buy a power supply (which I do agree sounds like the problem) I want to make sure on the lights.

  • Selky Nov 04, 2007

    Tried a new power supply, nothing. It will not boot from a CD, HD, or floppy, and the diagnostic lights on the back show a/b green, c/d orange which does not equal anything in the manuals.

  • Selky Nov 04, 2007

    It doesn't display anything...it can't boot. The screen continues to display no signal. It doesn't even get to a BIOS-beep. Turn it on, power light goes green. Checks the cd, checks the floppy, one short flash for the HD and it stops there. Power light stays green. Does the same if I put in a bootable CD or bootable floppy.

  • Selky Nov 12, 2007

    OK, FIXED. Had to go component by component to find the issue. Brought it down to nothing but the MOBO, removed the battery to reset the CMOS, that checked ok (BIOS beep for no-memory). Added the RAM, that checked ok....added items up until the video card. Then, died. Running it off the onboard video atm. It is running slow for video (sharing the onboard 256MB RAM), but it is running. ab green, cd orange indicates "system resource conflict".

  • besi_1ki Sep 23, 2008

    my pc i missing driver for grafics

  • Jim the geek Jan 28, 2009

    OK, I have a GX260 (tower) with almost the same problem. When I power up (turn on), the cpu fan spins up and the onboard LED is lite green and the front panel show on (power LED is green). But no beep codes and the BIOS boot screen does not display. Removed, checked and reseated the CMOS battery and tried different video cards (AGP and PCI). Still nothing .........

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  • Posted on Jul 31, 2009
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I had the same issue and accidentally discovered a temporary solution. Unplug the power from the back of the machine, open the case and unplug the ATX power connection from the motherboard. With the ATX cable unplugged, plug the power cord back in. When you try to turn the computer back on the power light should turn orange and fans should be spinning, with it powered on plug the ATX connector back in. That should turn the computer off. Turn it back on and it should boot fine. You can even shutdown and restart, but when the power is unplugged you will have to go thru the same process to get it back up. This sounds crazy but it worked on mine. Good Luck!

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  • Posted on Nov 12, 2007
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This is very common issue with the Dell GX260. I bought a pallet of 40 units and 3 had this issue. It was suggested to me to reseat the processor, but this didn't work for me. Dell KB lists this as a power issue with an installed component and suggests to call their support. I'll use that as a last resort because I'm sure there will be a cost.

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  • Posted on Nov 01, 2007
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You will need to replace the power supply with the same power supply for the gx260. I know this because I replaced many at my job where I work. Only if the CPU is showing an orange amber light and monitor is showing a green light.  You need to replace the power supply.

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  • Anonymous Nov 04, 2007

    At bootup what does the computer display. Does it display an error message and if so what does it say.?


    Thanks.

  • Anonymous Nov 05, 2007

    Did you replace the old gx260 power supply with a new gx260 power supply.

  • felixncc Aug 12, 2011

    Thnx, i hv d same problem, but my ABCD lights show a memory problem. A(yellow), B(yellow), C(green), D(green). I dnt knw whether u r considering the lights.

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