After replacing iMac logic Board fan spins loud and no video shows up
someone gave me a iMac 27 Mid 2011 completely taken apart so i had to put it back together. After putting it back together the machine powers on immediately the fan starts up slow and then all of a sudden the fan starts spinning super load and i have to unplug it from the back end to get it to stop. Nothing shows up on the LCD at all just wondering any idea what it could be?
Is this a good question?