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I did check the power supply unit and did find that 2 of the caps are gone! I recently write a response to this issue and resolved it with a new power supply. I have the orange blinky light problem. August 3, at 2: The Blinking Amber Light of Death is a documented problem.

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I did check optiplex gx520 sm bus controller power supply unit and did find that 2 of the caps are gone! I have the same problem with the orange light, the computers works good for a few minutes and after like 20 min it turns off with the orange light….

Yesterday, I tried turning it off and on several times, turning the surge protector off and optplex, and nothing.

When I unplug it, the computer starts just fine. I have four USB ports optiplex gx520 sm bus controller the back and have not optiplex gx520 sm bus controller out which one is doing it but unplugging the USB ports fixed the problem with the on switch blinking orange and keeping my computer from booting. It also turned out to be the damaged usb port as mentioned by numerous others.

The moral of the story: Follow the power supply and the self powered USB devices,which I have 2, unplugged all including power cord and turned off power supply.

Holding the power button down till it goes away. Check all your ports. I replaced the motherboard, and now I have the blinking orange light. The machine was not turning on at all, so my boss ordered me to replace the motherboard. February 15, at No voodoo, no magic unplug sequence first keyboard, then…mouse? I was in a panic until I found this blog post and subsequent comments. To shesagordie,Johnc,Bev and J. Hi all, I too had the same problem with the flashing lights.

Leads me to think it might be a device or driver, optiplex gx520 sm bus controller all the drivers seemed to check out. OMG MurGor… they scammed you big iptiplex. I am forever in your debt and though past child bearing years would give you my first. Margo, Mine is also Dell. I had noticed previously that computer wouldnt come out contrlller hibernation mode, so I had to smm, but adjusted the settings so it would not hibernate.

Great worked, the UPS was connected to an extension that is connected to the wall plug.

A Blinking Orange Power Light

January 2, at 2: This Dell GX would boot and run for hours on some occasions and on others would only show the flashing yellow light. Keep trying things one at a time until the problem goes away. The fans all spin up, then right back off.

Unplug the cable from the PS on the back of the computer. I first checked the breaker on my surge protector and indeed it contrpller tripped.

Never would have thought that USB could be the culprit in something like this. Many computer manufacturers look to cut costs and a great way is by using a low end power supply. The gentleman was correct Well done. I have a Dimension and this happened to me for the 2nd time tonight after a power outage. Tested each separately and found which one switch for monitor in about 3 controlller Blinky orange power light on the mother optiplex gx520 sm bus controller or power button is the power supply.

Thanks cojtroller the tip! Time for a new case, I guess. I have a Dimension and just came back home after 3 days away to a blinking orange light.

I used the chat feature and after I told the Dell tech initially my problem — that my battery was dead — that I was NOT going to replace it at this time and that I was happy to use AC for the time being optiplex gx520 sm bus controller all I wanted was to have them help me stop the orange light from blinking — the tech told me I needed a new battery!!

Brilliant idea to check usb pins.

A Blinking Orange Power Light

For anyone else who is having similar issues, I have an Optiplex GX slim tower. I went thru lots of headache optiplex gx520 sm bus controller to get my Dimension desktop fixed. Almost done cintroller in usb cords. You had to open the hardware connector and then insert the flat cable, then lock the hardware connector. I have an Optiplex GX that our son just got for us. April 27, at 2: So, my conclusion is — it is a design failure or malfunction of the way the battery is to communicate with the blinking light.

Long Island Computer Repair. Always try to replace optiplex gx520 sm bus controller PSU, since it is relatively low cost and easy to do. I have checked connections and voltages on everything. January 22, at I bought a larger disk for the so that my daughter could use it and before I could even put it in I thought I should check for any remaining stuff on the HD. There is one thing that bugs me though. Dell systems store the last power state in the DMI part of the bios. Ram can easily go bad.