Build Advice Critique wanted on (complete?) i7 ATX computer build

Apr 24, 2020
Hey all,

I haven't put together a full system for myself for something like 15-20 years (the most recent was 'assembling' an i7 NUC, before that were laptops for years). This is my build for a very 'upgrade friendly', over-engineered/simple/quiet/easy-to-clean system. Are there any obvious flaws, missing parts, non-compatible aspects, etc? Some part-specific questions. All details appreciated.

- MSI PRO Z390-A PRO LGA 1151 (300 Series) Intel Z390 SATA 6Gb/s USB 3.1 ATX Intel Motherboard
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- Fractal Design Define XL R2 Titanium Silent EATX Full Tower Computer Case

- Intel Core i7-9700 Coffee Lake 8-Core 3.0 GHz (4.7 GHz Turbo) LGA 1151 (300 Series) 65W BX80684I79700 Desktop Processor Intel UHD Graphics 630

- CORSAIR Vengeance LPX 32GB (4 x 8GB) 288-Pin DDR4 SDRAM DDR4 2666 (PC4 21300) AMD X399 Compatible Desktop Memory Model CMK32GX4M4A2666C16

Power supply: (TBD)

  • Pre-existing M.2
  • Pre-existing various other HDD.

  • The mobo and case both support video cards, but as the CPU has one integrated, I (should not?) need to get one any time soon. (I'm not much of a gamer these days.)
  • The case doesn't have matching new USB front ports to match the ones on the mobo.

Future upgrade plans:
  • Get a single or double set of video cards. (Board supports it.)
  • Switch out all four RAM pieces for a higher speed set. (Board supports up to DDR4 4400)
  • Replace the CPU with something that can max out the RAM speed.
  • Intend to keep the case and motherboard as long as possible.

*** Questions:
  • CPU: is the CPU a literal bottleneck on DDR4 RAM speed, capping it at 2666? Or can I already get faster (e.g. 4400) RAM without it being limited?
  • Case: are there any workarounds for a case-front USB port that is an older generation, to replace/upgrade it to a higher one?
  • Video: are there likely no problems with later installing a video card (or two) and simply not using the video features of the CPU, or...?
  • Power: which factors are critical for a power supply for the above build? ATX type to match the board? 24-pin ATX main power connector? Both?