iMac Crashes when plugging the eGPU  

Hi All,

I'm very much new in here and with eGPU's so bare with me please.

I just bought an Razer Core X and an ASUS RADEON 5700 XT OC ROG STRIX.

I have iMAC 27, Late 2015, and during PurgeWrangler installation when I plug the Thunderbolt 2 cable in the back of my iMAC it instantly crashes, any thought why?

(note: iMAC crashes when plugging the cable, even if it is not during the PurgeWrangler Instalation) 

System specs

27" iMAC late 2015 17,1, (thunderbolt 2)

3.2 GHz Quad-Core Intel Core i5

8GB Ram

AMD Radeon R9 M390 2GB

MacOS Catalina 10.15.4

eGPU hardware

Razer Core X

ASUS AMD Radeon 5700 XT OC 8GB ROG STRIX

Apple TB3->TB2 adapter + TB2 Cable

No External Monitor for now

Help will be greatly appreciated..

Thanks

Ricardo