Lines on monitor will not boot up
27” iMac 2013
Lines on monitor will not boot up. Apple said I need a video card how do you replace it,
I would first try hooking up an external monitor to help isolate the issue to either the display or the logic board.
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Lines on the screen are often a bad display or T-CON board within the display assembly. Did you bang or drop your system? If you have you may need a new display.
This series does not offer replaceable GPU board’s, it uses a soldered on GPU chip on the logic board. You can see it here on Step 6 iMac Intel 27" EMC 2639 Teardown
You will need a new logic board or you’ll need to see if someone with the deeper skills can fix your logic board. Here’s the guide iMac Intel 27" EMC 2639 Logic Board Replacement
Here’s your logic board options:
指南
难度:
中等
指南
难度:
困难
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1 hour
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