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820-00163, MagSafe flashing green light when battery is plugged in.

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dukefawks

Administrator
That may point to the GPU not working and only using the Intel onboard. Check voltages on the GPU Vcore and for damaged parts around it. Is the GPU still recognized in OSX?
 
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cobragfox

Member
No Title

I'll do the measurements during the weekend. Going out town. And yes, the GPU is still recognized in OSX, Believe this model is only has the intel Iris pro. Serial number is: C02Q74K6G8WM
 

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dukefawks

Administrator
00163 board has an AMD GPU and that is missing now. Check voltages around the GPU fist. You must have knocked something off/damaged.
 
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cobragfox

Member
looks like the gpu is toast. PPVCORE_GPU shorted to ground (mostly, 0.63ohms). Pulled R9398 and R9399 and confirmed short is on GPU side. Going to pull all 30 caps to confirm issue isn't with one of the caps. don't know of any other way to confirm the short on the gpu without pulling the gpu.
 
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dukefawks

Administrator
No need to pull the caps, GPU is dead. Do confirm with another board if you have one to be sure. But GPU Vcore is usually around 3-6 Ohm.
 
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