Your parts are compatible.
You did good research.
I have some thoughts:
1. For a gaming pc, the 9700K will be cheaper and game just as well as a 9900K.
That will free up some funds for a stronger graphics card like a RTX2080
2. Life will be much simpler with a single large SSD drive.
Love the Samsung EVO line.
I think I would stick with just one drive for windows C drive and whatever you want to put on it.
I think a 1tb 970 EVO plus would be my choice.
What will be the use for the 4tb HDD?
If it is for bulk storage like videos, then a HDD is appropriate.
Otherwise, I think I would omit the HDD and buy a single large ssd.
You can always add a HDD later.
3. Noctua NH-D15 is as good as it gets for cooling.
Your case is a very good one for air cooling.
Some graphics cards with backplates come very close or even touch a D15 if it is mounted in the normal first pcie x16 slot.
I would be more comfortable with the NH-D15s which is a newer high capacity version.
It cools as well and may even be cheaper.
Since you are a first time builder, this might help:
MY build process:
Before anything, while waiting for your parts to be delivered, download
and read, cover to cover your case and motherboard manual.
Buy a #2 magnetic tip philips screwdriver.
I find it handy to buy a power switch like this for testing.
https://www.ebay.com/p/4in1-PC-Powe...or-Computer/631889283?iid=142232821294&chn=ps
1. I assemble the critical parts outside of the case.
That lets me test them for functionality easily.
A wood table or cardboard is fine.
2. Plug in only the necessary parts at first. Ram, cpu, cooler, psu.
Do not force anything. Parts fit only one way.
Attach a monitor to the integrated motherboard adapter if you have one, otherwise to the graphics card.
- If your motherboard does not have a PWR button, momentarily touch the two pwr front panel pins with a flat blade screwdriver.
- Repeatedly hit F2 or DEL, and that should get you into the bios display.
- Boot from a cd or usb stick with memtest86 on it. memtest will exercise your ram and cpu functionality.
- Install windows.
- Install the motherboard cd drivers. Particularly the lan drivers so you can access the internet.
Do not select the easy install option, or you will get a bunch of utilities and trialware that you don't want. Drivers only.
- Connect to the internet and install an antivirus program. Microsoft security essentials is free, easy, and unobtrusive.
- Install your graphics card and driver if you tested with integrated graphics.
You will need to remove the graphics card later to install your motherboard in the case.
As a tip when screwing the motherboard into the posts, give the screw a small counterclockwise turn until you feel a click.
That lets you know that the screw will engage properly.
Make a note of how the graphics card latches into the pcie slot.
The mechanism will be hidden under the card and may be difficult to work if you have not previously checked how.
- Update windows to currency.
- Only now do I take apart what I need to and install it in the case.
- Now is the time to reinstall your graphics card.