My Dell Inspiron 537s stopped working and won't turn on. There is a green light in the back when I plug it in, but the power button in the front does nothing. I am assuming it is the power supply, but need to figure out how to be sure before I find and install a replacement.

If you are not getting any beeps its either the powersupply is back or the motherboard is bad. You can try replace one at a time

Is the computer plugged in to a known good power source with a known good power cord? Also, make sure the power is fully seated on both ends. When you press the power button are you getting any indicator lights? The power button itself has an LED that will be either solid green, blinking green, solid amber, blinking amber, or off. Do you hear any beeps?

unplug, take out battery then hold power button for 30 seconds then plug back in and turn on
if the3 laptap gos on without the battery you need a new battery

Remove the battery from its compartment on the side of your Dell Inspiron laptop computer.

Remove the power adapter from its plug on the side of the Dell Inspiron (if your laptop is currently plugged into a wall outlet).

Press down and hold the "Power" button on the laptop for one to two minutes. This will dispel the excess electrical current that is built up inside the laptop.

Put the battery back inside the compartment of your Dell Inspiron.

Plug your power adapter back into the side of the Dell Inspiron. Press "Power." Your laptop computer will now turn on.

hope this helps

Could be a faulty switch, switch wire connector loose from the motherboard, faulty power supply.

Hi,
Take the battery off completely and drain the flea power from the laptop by holding down the power button while the battery is off. Hold down the power button for about 15-20 seconds to ensure no power remains on the laptop. Check if your battery has a drain button too. Drain the battery and place it back on the laptop.
Charge it for about 30 minutes before you turn it on. See if it works.
Post here if you need further help.

When the charger is plugged in, is the charge light lit up?

Green LED on back of power supply indicates it's getting power. That does not mean that it's distributing the power voltages to the computer. You could have a bad power supply or a bad motherboard. Just to make surethat nothing else is causing the problem, remove any PCI cards like modem,video card, sound card, etc... Remove the memory modules and disconnect cablesto CD/DVD drives. Look at the USB ports to see if any are damaged.

I am having the same issue, did you resolve yours?

The battery is critically low, indicating that it is not getting a charge from the AC adapter. If the system will not power on from the AC adapter, then the motherboard power connection is suspect.

Motherboards are about $100 on EBay