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lenovo T430u Mavericks-black screen


zuiliuyun
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my computer Configuration:

lenovo T430U

CPU-3317U

Graphics-HD4000+GT620M

sound-ALC269

NIC-BCM4313

if i restart ,i can't see bios Interface,black screen .Then into win7 system ,also black screen.but i can listen boot music。

Who can help me? Tanks a lot.

 

guid by chameleon。I try clover ,also black screen.

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