thanks ,but

thats my problem that can't boot into boot status. at all
at time it boot mac osx, i hold down the tab key, but get nothing.
mac osx just continue loading..

same pics

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Asus Rampage Extreme x48 / intel Q9450/ OC 4.0Ghz 4core
Corsair GT /6GB/DDR3 1603mhz/
Mac Radeon ATI HD-5770/1GB/
Lion 10.7.3 120GB SSD/ Mountain Lion 10.8 250GB SSD
Logitech HD-c905 webcam
Apple keyboard bluetooth+mouse bluetooth
Acer 24" HD Screen/ Fillwater cooling system