This is a custom DSDT patch I've made for my Lenovo E530 to install a GTX750Ti through its Mini PCIe (Wifi slot).
The modified DSDT files:
dsdt-modified.aml
dsdt-modified.asl
dsdt-modified.dsl
Use the modified DSDT files to patch. If things don't go well, roll back using the original files provided.
The Graphics card dock used: GDC Beast v8
Guide to patch DSDT for laptops: RehabMan