Adding external GPU on my laptop

Greetings

I am using Dell Inspiron N5010 windows 7 updated to Windows 10 64bit i3 Intel and 4gb ram. I have bought an exp gdc mini PCIe for me to be able to use an external GPU on my laptop. I was able to connect it and also follow all the instructions of how to install the exp GDC on my laptop, but when I switch on my laptop all I get is a black screen only when the egpu is connected. I was watching a video where I sow someone install it on Dell Inspiron N4010 and it worked perfectly but am facing a problem. Can you please help me with how to make it work on my laptop.

Any solution may be accepted

Kind regards Abbie