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Dell blinking amber power button

Last response: in Motherboards
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July 30, 2013 6:39:35 AM

I have a Dell OptiPlex GX520 running Windows XP. The other day someone knocked the tower over, and when I went to turn the computer back on, the power light was blinking amber, as were the two lights on the Ethernet port on the rear of the computer. I looked up what the amber light meant in the Dell manual, and it states:

If the power light is blinking amber — The computer is receiving electrical power, but an internal power problem might exist.
- Ensure that the voltage selection switch is set to match the AC power at your location (if applicable).
- Ensure that the processor power cable is securely connected to the system board.

I first checked the voltage switch on the PSU, and it was correctly set to 115. I then checked all the connections to the mobo and they were tight. I also checked all the capacitors on the mobo for any leaks or bulges, still nothing. Next I took out the CMOS battery (for about 1-2 minutes) and put it back it, no luck there either. And I reseated the memory with no luck.

So I bought a new power supply and switched it out, still I had no luck, the light was still blinking amber. I am however able to get the PC to boot up if I jump out the Green (PWR_PS_ON) Pin with a Ground Pin on the ATX 24-pin connector. When I do this, the computer stays on and runs no problem, but once I shut it down, I can not turn it back on using the normal power button, it blinks amber again. In order to boot it up, I have to jump out the ports. If anyone has any idea, I'd appreciate the feedback. Thanks

- Matt R.
a c 128 V Motherboard
July 30, 2013 8:09:02 AM

I think the problem lies in front panel connectors, the electronics gone for good, or the power button switch on the cabinet. Try switching the power button with the reset button on MB. Then all you have to do it to press the reset button to boot up the PC. See how it works.
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July 30, 2013 10:42:26 AM

lonewolf7 said:
I think the problem lies in front panel connectors, the electronics gone for good, or the power button switch on the cabinet. Try switching the power button with the reset button on MB. Then all you have to do it to press the reset button to boot up the PC. See how it works.


I can't switch the power button with the reset button because on this motherboard the entire front panel (Power Button, USB ports, MIC in, and headphones) are all connected to the MB through a single ribbon cable so I can't separate the individual components.
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a c 128 V Motherboard
July 30, 2013 11:35:08 AM

Then you have to replace the whole front panel electronics. Google it you may find it.
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July 31, 2013 7:35:25 AM

lonewolf7 said:
Then you have to replace the whole front panel electronics. Google it you may find it.


I found the front panel online, and it's not too expensive. I'll probably order one and give it a try. I'll let you know if it works out
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Best solution

a b V Motherboard
July 31, 2013 7:42:42 AM

Before you do that, one more thing - you removed battery for only 2 minutes, Dell generally recommends at least 5 minutes, and the good rule is at least 15 minutes.
Even better, turn off your PC, pull the plug off, press and hold power button for at least 20 seconds, next remove battery, leave it off for couple of hours, get a life, then reinstall it. If this doesn't work - proceed with what ever.
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July 31, 2013 10:49:52 AM

Kisianik said:
Before you do that, one more thing - you removed battery for only 2 minutes, Dell generally recommends at least 5 minutes, and the good rule is at least 15 minutes.
Even better, turn off your PC, pull the plug off, press and hold power button for at least 20 seconds, next remove battery, leave it off for couple of hours, get a life, then reinstall it. If this doesn't work - proceed with what ever.


Alright, sounds good to me. I'll give that a try before I buy the part. Thanks
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August 2, 2013 7:00:05 AM

So I took the battery out for a few hours and put it back. Still having the same problem. Looks like I'm going to have to replace the front panel.
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a b V Motherboard
August 2, 2013 9:38:07 AM

MattR658 said:
So I took the battery out for a few hours and put it back. Still having the same problem. Looks like I'm going to have to replace the front panel.


I have a bad feeling about this, let me think more.

Meantime what is your form factor, look at the pictures below and identify yours:



This is link to manual ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/...

I don't think manual provides part numbers.
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August 2, 2013 11:33:07 AM

It's the Small Mini Tower
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a b V Motherboard
August 3, 2013 7:26:32 PM

Lets try something cheap first - purchase new battery first and exchange (with couple hours battery off). At worst you loose $5 or so.
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August 5, 2013 9:59:52 PM

Kisianik said:
Lets try something cheap first - purchase new battery first and exchange (with couple hours battery off). At worst you loose $5 or so.


Thanks for the cheaper alternative, but it still didn't do the trick. It seems to me that it is the front panel. Not sure what specifically in the front panel is causing the issue, but once I turned the computer on by jumping out the wires manually, I disconnected the front panel all together, and the computer has been running fine ever since. Of course, I can't turn it off without having to turn it on by jumping out the wires, so I'm going to purchase a new front panel. Maybe I'm wrong, but all the problems seem to go away when the front panel is disconnected. Thanks for all the help!
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a c 128 V Motherboard
August 6, 2013 8:47:31 AM

The front panel electronics gone bad when it knocked over. When you push the front panel power on switch it simply sparks and in a way it shorts between the two wires and thus you have the PC to start up. Somehow it got messed up. So buying a front panel would solve the problem at least I believe it.
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April 30, 2014 2:53:32 AM

MattR658 said:
lonewolf7 said:
I think the problem lies in front panel connectors, the electronics gone for good, or the power button switch on the cabinet. Try switching the power button with the reset button on MB. Then all you have to do it to press the reset button to boot up the PC. See how it works.


I can't switch the power button with the reset button because on this motherboard the entire front panel (Power Button, USB ports, MIC in, and headphones) are all connected to the MB through a single ribbon cable so I can't separate the individual components.


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April 30, 2014 3:06:46 AM

dell optiplex780 won't boot. lights 1&3 green and power button amber. used the green wire and cut it around the middle. put another wire between them and solderd them together. held the third wire onto the chassis of the pc. the fan runs normally BUT still the monitor won't come on. any help from here?
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a b V Motherboard
April 30, 2014 10:44:53 AM

skabita1 said:
dell optiplex780 won't boot. lights 1&3 green and power button amber. used the green wire and cut it around the middle. put another wire between them and solderd them together. held the third wire onto the chassis of the pc. the fan runs normally BUT still the monitor won't come on. any help from here?


Amber light - motherboard failure, plus you change configuration, so I am not sure what can happened next. Working fan means there is power distributed through motherboard, but this is not all.

Sorry, I can help you.
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June 11, 2014 1:24:51 PM

Its not because of motherboard failure or the front panel. I have the same problem and tried to figure out what was wrong, so I've took a battery out from an old PC my mum was going to throw away and have it connected to my PC and it worked just fine. Been using it for months now.
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June 24, 2014 10:58:33 PM

I have the exact same problem as OP. MattR658 or Anyone with knowledge, can you please give me instructions on how to Jump out the green (PWR_PS_ON) Pin with a Ground Pin on the ATX 24-pin connector ?

I also have that ribbon cable. I want to make sure it is the front connectors as well, by temporarrliy starting the computer.

Thanks
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June 30, 2014 10:14:35 AM

once i just opened my pc like any other day and it started but no display and no bios loading the next time, i tried swapping ram,hdd swapping,one by one component removal and tried starting each time but to no avail,it only started when i re-installed the processor.
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