Hello everyone! I'm building a new system intended for workstation use (I won't be gaming at all). I work with 3D animation/modelling/sculpting, 2D animation (vector/raster), video compositing/FX, digital painting, image processing with Python/ImageMagick/OpenCV, etc. The apps I use are Blender, DaVinci, Corel Painter, Clip Studio, OpenToonz among others. CPU: AMD Ryzen 9 3900X CPU Cooler: Noctua NH-D15 SE-AM4 GPU: GTX 2070 Super 8GB Motherboard: Asus TUF GAMING X570-PLUS ATX AM4 Memory: Crucial Ballistix Sport LT 32 GB (2 x 16 GB) DDR4-3200 Storage: Samsung 970 Evo 500 GB M.2-2280 NVME Others: 3x Case Fans (no RGB) / 1x SSD / 1x HDD Notes: I won't overclock Estimated Wattage: 484W The PSU's on my list so far... Seasonic FOCUS Plus 80+ Platinum (550W) Seasonic PRIME Ultra 80+ Platinum (550W) Corsair RM550x 80+ Gold 2018 (550W) I already had suggestions not to go with either of the Seasonics (I don't know why though). When I added the FOCUS I got this message on PCPartPicker... ? I admit to some brand loyalty between Seasonic/Corsair over habit but I'm very open to any suggestions, I already use an RM550x from some years back in another build but I noticed now they list it as RMx 2018, is it the same PSU? Should I go higher on the wattage? My budget for the PSU is £130 ($150 ish) but I have wiggle room, I'm looking for long-term reliability, trusted build quality and efficiency but I don't know how to look for it, it's the most difficult and scary component for me to choose, thank you so much in advance for any advice!