I have a Inspiron 531 that will not turn on.....the green light is on, on the back of the unit, but when I press the power button nothing happens......no lights, beeps or anything. I have reseated the memory and hard drive. Still nothing.... What do I do?
This is usually the sign of a power supply (PSU) failure. The green light on the back just means power is getting to the PSU. Unfortunately no power is probably coming from the power supply. You can replace it with any ATX PSU that is at least 300 watts and has four SATA connectors.
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