Why duplicate thread?
https://rog.asus.com/forum/showthread.php?104974-First-Build-Advicehttps://rog.asus.com/forum/showthread.php?104975-First-Build-AdviceDon't forget TIM (thermal paste, thermal grease, whatever), you might have to purchase separately if your cooler doesn't include any or you'd like to upgrade.
The NH-D15 is huge, and like all other huge air coolers you should check and double check that it's dimensionally compatible with your CPU socket, mobo heatsink fixtures, RAM clearance, adjacent PCIe clearance, and chassis panel.
An air-cooled system is all about airflow so you may want to install more or better fans than the chassis provides. You may even want a dedicated fan controller accessory.
If you buy a 1080Ti now with the plan of upgrading to 2080 later then expect to lose $$$ money on it when reselling.
MAXIMUS motherboards generally have awesome onboard audio. But still not as good as awesome offboard audio. If highest audio quality (in gaming, music, movies, etc) is a priority then you'll eventually want a dedicated soundcard or external audio device - either way, if there's any chance you'll eventually buy better audio then it's best to plan ahead and make sure you reserve a slot/port for it before you build.
I've never fully trusted Corsair PSUs but the AXi models are very popular and apparently very good choices. Beware that many people complain about CorsairLink being plugged into internal USB headers, causing problems (exceptions, faults, conflicts) with other drivers, and sometimes just being buggy and laggy in quirky ways. You may (or may not) need to purchase some minor USB hardware to accommodate Corsairlink interface on a crowdy motherboard.
Don't forget your keyboard and mouse (and mousepad, if you use one), lol, they can be ten bucks each or they can cost $$$ each if you go for the top-tier leet branded gaming gear. And you might be one of those folks who like gamepads, flightsticks, trackballs, and other $$$ stuff.
Note that ASUS, MSI, GIGABYTE, G.SKILL, CORSAIR, STEELSERIES, and many others each have their own "ecosystem" of RGB stuff. You have to run a separate driver/software suite for each RGB manufacturer ... which can get ridiculous pretty quick if you buy a half-dozen brands of RGB gaming hardware. And sometimes (rarely these days) there are simple incompatibilities, the hardwares will work together but their RGBs will not. The easiest way to sidestep all of these issues is to minimize brand mixing - you can be (almost) certain that all the pretty RGB toys on an ASUS mobo and an ASUS GPU card will work properly together, etc.
Google around a bit before installing your Win10. Some firmware settings need to be changed around a little if you don't want your Win10 license to be permanently married to the platform (which will be an issue in the future if/when you ever decide to swap or upgrade the hardware).
"All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams
[/Korth]