Dell Inspiron 3542 Specifications: Processor : Intel Core I3 - 4055U RAM : 8GB DDR3 Network Card: Realtek RTL8106E-US & RTL8111G-US Audio Card : Realtek ALC3234 BIOS : A05 on AHCI MODE (UEFI) Graphics: INTEL HD 4400 & NVIDIA 820M I have successfully installed El Capitan, but Audio and Network are not working. Whenever Mac boots or I open any other app the screen flickers. And everytime to boot mac, I have to type nv_disable=1 in clover boot args. I am completely newbie for HackinTosh. I would appreciate for your help. Thank You.