Optiplex GX620 - power led linking amber

Hi svt11,

This is likely a motherboard problem. The SFF power supply is proprietary so I can't recommend a desktop PSU.

Hi SVT11,

Welcome to Dell Community Forum.

Blinking amber Power LED on an Optiplex GX620 SFF indicates that the power supply is receiving power from the source but is unable to properly distribute it to the components. Since the Power LED is blinking amber, the Quad Pack Diagnostic LEDs would be off.

If the power button LED remains blinking amber, it simply indicates the POWER_GOOD signal has not been issued by the power supply. It does not indicate the power supply is bad. It simply indicates that, for whatever reason, one of the power supply rails is not operating within its specified range or, simply, that there is a short somewhere in the system.

The LED state could be the result of a misconfigured or incorrectly installed system component. Since all the components inside the computer use electricity, any component could be causing this problem. You have correctly tried to remove the hard drive, memory, etc. to determine exact point of failure. A bad drive, for example, may be shorting out one of the rails, incorrectly installed memory can cause a blinking amber power button LED or incorrectly setting the voltage selector switch can cause a blinking amber power button LED.  In all these cases, the power supply may be functional while some other component is causing the voltage rails not to meet their target.  

 Remove all components except the Outlet, Power cord, Power supply, System board, Control panel and  I/O panel and then check if the system powers on and the Power LED turns green. This includes all expansion cards, Molex audio cables, processor fan power cables, front headphone audio cables, drive data cables, etc.  You can remove all the components all at once or one at a time, so long as you continue to remove components until only those mentioned above (that is, the Outlet, Power cord, Power supply, System board, Control panel and  I/O panel), remain in the system.

• If done properly, only one of two situations will result.
  1. The power button LED code/color does not change
     —This indicates that one of the remaining components is causing the LED code. Try reseating the remaining components or swapping them with known good parts from a known good system, if available. (Be sure that the systems are as close to identical as possible and that the swap happens both ways.)
  2. The power button LED code/color changes.
     —If the offending component was removed, the power button LED code/color changes (e.g., blinking amber to solid amber or solid amber to solid green) to indicate progress. Begin reinstalling components one at a time to find the defective part.

Click on the link below for Manuals & Documentation for the Optiplex GX620. Though you have already removed most of the components previously, please check the manual for how to disassemble the system chassis parts. Read the "Before You Begin" section prior to removing any parts from the computer. Remove the components as mentioned above only if you are comfortable doing so.

http://dell.to/18gcIxn

hi - don't know if this is at all relevant, but:

on my optiplex 745, after normal power down, I only get to the same state (amber light) and the first little green one, I can tell something is running but seems "stuck"

it's pretty old, so I mourned it and went to bed, next morning it was running like normal!

I have a couple of pgms that run overnight (backups or cleanups) and I think one of those kicked it back on - pretty scientific huh? now I try to remember to keep it on

good luck on yours,

stephanie

You can try the desktop PSU for testing purposes, but as was pointed out, the GX620 power supply is proprietary and you're limited to an OEM replacement. There are plenty of the latter on eBay.