@ifixtech64925
Even though the voltage is within specs it still may be a faulty adapter, until proven otherwise.
It may not be able to supply the current required to run the PC properly.
Looking at images of the adapter it has only a standard DC power plug i.e. 2 wires +ve and -ve input only and no 3rd wire input.
Just wondering if the power input is OK and that maybe the power output from the power supply circuit on the motherboard isn't OK for some reason
Just to eliminate the possibility of a corrupted BIOS being the cause, disconnect the power from the PC and then remove the RTC coin cell battery from the motherboard, press and hold the PC power button for 30 seconds, reinsert the RTC coin cell battery (+ve on top as marked on battery), reassemble the PC, reconnect the power and check what happens when you start it.
Here's the owner manual for the 3020M version of your PC that may help. I assume this is your model. The other 3020 model variants have an AC power cord connection to the PSU in the PC case and don't need a power adapter.
Go to p.30 to view the procedure to remove the coin cell battery.
If still no good then try a compatible charger and if still no good its a motherboard problem.
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4 Kommentare
@ifixtech64925 Can you try another power adapter of the same model from Dell?
von Andrew S
Hi @ifixtech64925,
Check that there's 19.5V DC on the output plug of the power adapter.
von jayeff
@jayeff The voltage on the output plug is 19.55 volts DC
von Midlander
Dell Certified tech here: If the green light on the AC Adapter doesn't go out when the machine shuts down, there is a few possibilities. Overheating, or the PC has a bad motherboard/bios. If the AC adapter "box" is in a ventilated area and doesn't feel uncomfortably hot to the touch, I would revert to an earlier BIOS version, or disable the BIOS warning about the power adapter(input). Visually inspect the connections, and ensure that there is no debris or damage. A replacement AC Adapter should be reasonably priced, I have run high end Precision Laptops with cheap 'universal' AC adapters bought from wally world.
von Michael H