Display flashes briefly with chime and computer boots up?
iMac Intel 21.5 inch-EMC-2308
Imac started to boot up with the chime and the display would flash briefly and then go to black. For a while I was able to put the iMac in target mode and run repair permissions from another laptop, but I can't do this anymore. I tried a new power supply and that did not solve the problem.
Is this a good question?