Well I have the same processor as yours and having this trouble with OSX Mavericks GM ( although I have GT630 - GT540 renamed ) , and when I check "Drop SSDT" option , I got only one SSDT.aml, unlike yours. So how to solve this problem ?
Edit: Problem solved , the error is caused by 10.8.x's SSDT , use the SSDT from 10.9 > work like a charm