Chosen Solution
My iMac’s screen is flickering. It’s really bad at max brightness and still occurs at min brightness. Not sure if it’s just coincidence, but it seems to be most noticeable with any kind of movement on the screen (mouse, text cursor, etc.). See the attached video. What component do you think is defective? I recently had the video card replaced by an Apple ASP, but wondering if I got a lemon?
Sounds like the LED driver board is failing iMac 27" LED Backlight Board V1 (4-Pin)iMac 27" LED Backlight Board V2 (8-Pin) And here’s the guide to put in it in: iMac Intel 27" EMC 2429 LED Driver Board Replacement
