Closing down completely and leaving black screen
Imac closes down with a black sign saying:
"You need to restart your computer. Hold down the power button for several seconds or press restart button" OK but it still closes down.
Remedy: Place a horisontal blower under the left edge of the iMac
Even worse now: When opening a USB-connected scanner leads to:
A sound like a smal spark inside the computer and a complete black screen.
Assuming that the power supply in the computeres DEAD !!!!
Am I right or ???