Hello Everyone, I am working on a 2012 M5-581t. When I turn on, all I get is the ACER logo, then it moves to boxed NO BOOTABLE Devise. I tried to get the BIOS without luck. Tried all the keys on Boot up. I am thing the board is bad. When I load the factory recovery DVD, it spins, but nothing appears on the screen. Then I tried a ACER USB recovery. Nothing. I even unsoldered the CMOS battery, discharged the board, and tried again. same result...ugh
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