I have an early 2011 15" Macbook (2.4 GHz i7)
The laptop boots fine, but
- after 10 to 20 minutes of regular use the screen either goes blank, breaks off into multiple lines, goes dark or just freezes the image
- one or two minutes after that happens it reboots
- If I connect the HDMI connector this happens in less than 5 minutes.
Ive run all the hardware diagnostics including memory tests and it says everything is fine.
Can I change just the GPU or do I need to change the whole logicboard?