Hp laptop doesn't boot with wifi module

Hi,
After I changed the motherboard on a hp pavilion g7 laptop i realised that it only boots if the wifi module is out. if i put the wifi module in the laptop won't boot. it starts and remains at a black screen. if i plug the wifi module after booting into windows the laptop works fine even with wifi.

Hello Deebw,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your notebook does not boot when the WiFi module is attached on your new motherboard, and I would be happy to help you in this matter!
For further assistance, I will need to know:
The part number for you wireless module.
If you replaced the motherboard yourself, or if it was serviced in an HP Center.
The Product and Model Number of your notebook computer.
The version of Windows you have installed on your computer.
If your computer has completed all of its important Windows Updates.
If you have updated your HP drivers using the HP Support Assistant.
If this is an on-going, or recent issue.
Please re-post with the necessary information, this way I will be able to research this further for you. I look forward to your reply!
Cheers!
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

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