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Hi to everyone , I have troubles to eliminate the error 43. I have beast 8.0 EXpress card cable cx650M Source power I have tried to install different versions of driver nvidia but the error persists. When I start the laptop and the power supply at the same time I have a black screen. but if I wait about 10 minutes and then I turn OFF the laptop the restore computer appears , seems like the laptop worked normally (but I have no video signal). Sorry for my poor english.