Noob needs help

[Cartin_Mash]

I have recently acquired a Ailenware aurora r4 as a 1st gaming pc project to upgrade. I need help in knowing what parts will fit.

1st all will a
SAPPHIRE RADEON RX 6600 PULSE GAMING 8GB GDDR6 PCI-EXPRESS GRAPHICS CARD
Fit?

Any other advice will be appreciated

Thank you

(All components are standard I believe and its a 850w power supply)

 

[Cartin_Mash]

Thank you so much also do u think it would be worth changing the mother board?

 

[Cartin_Mash]

Thank you so much for your advise I was going to just tinker with this and see what I was doing as never built a pc before. I will keep your info in mind thanks