[SOLVED] amber light on dell optiplex 755

[Fenius]

hello, i have an issue with my pc, whenever i try to boot, it just gives an amber light and wont become green again.
is it the power supply? or is it some other component that i must get?
specs:
dell optiplex 755
2GB RAM
Windows 8.1 (64-Bit)
Intel GMA 3100
275w PSU
Intel Core 2 Duo E4400 2.00GHz

 

[faalin]

If it the power button that is amber it will mean a bad PSU or motherboard. Not sure if those have proprietary PSU, more then likely you could probably pick up a used/refurb dell off ebay for about what you going to be paying for a new PSU for that computer.

 

[ErickParker]

The on and off button is normally green. When it turns yellow (amber) there are 2 diagnoses:
1 - solid yellow > Dell Diagnostics is running some motherboard related test. Hold.
2 - flashing yellow > PSU or system board failure

The probability of being PSU vs MOBO is 50/50
If the 755's PSU is genuine, it should be at end of service.
Try connecting another PSU for testing. (easiest way
The MOBOs of this series, after years of use, frequently present problems in the capacitors.
If they are replaced the board "may" work again.
However, capacitors are usually tested off-board, so it might be cheaper and easier to replace the MOBO with an equal one.