all white grphic for mac image persistance

I never saw this problem for the first year or so that I had the computer. One of these days, I'll have to open the thing up and clean it out.

Make sure the correct input (HDMI, DVI, etc) is selected using the built-in controls on your monitor. As monitor sizes have increased over the years, display standards and. I suspect the continuing build-up of dust in the fans and vents causes higher temps on a regular basis which leads to this issue more frequently. In the case we found all the cable connections perfectly working, we must try out the graphic card test with another unit. My iMac has had this problem more frequently as the computer has aged. If you regularly push your computer like this so that the internal temps often run hot, you definitely need SMC fan control to run the fan speeds up. If you are making heavy use of your iMac (like using Photoshop or doing video editing), you'll start to see this problem crop up. Under normal use in a cool-ish room, the problem will not usually show up. The persistence isn't damaging the screen, but it is indicative of a design flaw due to the obsessiveness with Apple over keeping the computer as quiet as possible. You can pretty much remove the problem in the future by using SMC fan control and running the fan speeds up to around 2000 RPM or so. For best results, make sure its 8-pixels tall, and 8-bit color. The image persistence can be fixed by simply changing the desktop background to pure white and leaving it sit like that for several hours. Make your own images Use your favorite image software to create your own images. This problem is endemic to the 24' iMac and is caused by excessive heating behind the display. An LCD screen will not show image persistence after a mere hour or two with a static image. Image persistence is user caused, so I doubt that the Apple warranty covers it.

All white grphic for mac image persistance