Gigabyte Z370P D3 Motherboard

Hi everyone. I have just bought a Gigabyte Z370P D3 Motherboard to replace my busted BTC37 board.

I havent set it up yet but have read that I may need to enable all of the PCIE slots as it may only read 4 of them Can anyone help? I dont have access to wondows

how long did the BTC37 last??