Need help with my new computer build

[Jahbron]

My computer parts list :)     https://pcpartpicker.com/list/fc3PF8

 

I have been looking into building a powerful gaming computer for a few months now with all these new games coming out, but this is gonna be my first time building. Can anyone help me out and tell me any tips about building that I should probably know. I already know most of the basics but im obviously no pro at this stuff. I am currently having trouble figuring out if the power supply is going to be enough with the rtx3070, i7-9700k and peripherals (Im pretty sure its enough with room for a possible future upgrade I think). I also dont know about the case fans (6 fans on the ones I chose) and the headers on the motherboard how that works because I dont think there is enough, as well as what the pins mean. To be honest, any tips can really help me. Thank you for your time guys its much appreciated.                      

[Entropy.]

Er... that list might need some work. Your budget is around $1700 before tax? Here: 


The GPU is a overpriced stand in, as this is the only one I could find without having to input a custom price. MSRP should be around $700. You could also go with the ryzen 5000 processors, but you might need to edit the budget to get a 5800x/5700x to fit, or you'd have to step down to a 5600/x-Fine for gaming, but you'd want to go with the 3700x most likely for workloads and editing. 

PCPartPicker Part List

Type	Item	Price
CPU	AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor	$304.99 @ B&H
CPU Cooler	Scythe FUMA 2 51.17 CFM CPU Cooler	$59.99 @ Amazon
Motherboard	MSI B550-A PRO ATX AM4 Motherboard	$139.99 @ B&H
Memory	G.Skill Ripjaws V 16 GB (2 x 8 GB) DDR4-3600 CL16 Memory	$74.99 @ Newegg
Storage	PNY XLR8 CS3030 1 TB M.2-2280 NVME Solid State Drive	$124.99 @ Amazon
Storage	Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive	$54.99 @ Newegg
Video Card	PNY GeForce RTX 3080 10 GB XLR8 Gaming REVEL EPIC-X RGB Video Card	$759.94 @ Office Depot
Case	Phanteks Eclipse P400A Digital ATX Mid Tower Case	$89.99 @ Amazon
Power Supply	Enermax Revolution D.F. 850 W 80+ Gold Certified Fully Modular ATX Power Supply	$128.86 @ Amazon
	Prices include shipping, taxes, rebates, and discounts
	Total	$1738.73
	Generated by PCPartPicker 2020-11-17 21:12 EST-0500

As for the building, I compiled a basic playlist to get you started: youtube.com/playlist?list=PLpsfvpX2D9sTd20nyRdwmta2jFWoNrRSc