Why is my iMac still running but the screen is off?
My iMac late 2009 is running like applications and such will open but the LCD screen is black.
I have put new thermal paste on the GPU, I have made sure all cable connections are tight, and I have even recalled the GPU solder.
One thing I might think is causing it is that the GPU temperature cable is unplugged because its being a pain in the but to install. But, I’m not sure it is that because I have my fans running at high speed because HDD temp cable is unplugged because I recently upgraded to a SSD.
Any answers are greatly appreciated.
Thanks
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