Question about Apple 20" iMac Desktop
Most likely, you blew the power supply on the computer. You could take it in for repair, but I would recommend putting that money into something newer.
It is also possible that your motherboard needs to be reset, but I doubt it. And it does take some work to reset the motherboard on a 98 iMac. In general, to reset the motherboard, unplug the computer from the wall, disconnect the power supply cable from the motherboard, and remove the battery. Let the computer sit that way overnight. It discharges any latent power. There is also a reset button for the PMU on the old iMac motherboard that you would also press.
But to get to the MB, you need to remove the bottom of the case, and then remove the drive/motherboard assembly. It is a bit intimidating if you havent' done that sort of work before.
Posted on Jul 29, 2009
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Posted on Jan 02, 2017
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