Hello! I have a video adapter problem too... What motherboard is on a Sony Vaio VGN-AR 520e?
Qual e a placa mae do Sony Vaio vgn ar520e?
More aboutplaca sony vaio 520e
I reply to your question, the motherboard is a MBX-176 If you remove the memory cover and look for a A1314342A number, you can cross ref. that number Find someone to reflow the GPU chip for you or you can contact me at johnrraycomputer.com