My first sff pc in a K39. i5-8400, RTX 2060 super, 16gb RAM, Alpenfohn Black Ridge, Aorus Z390i. All fan swapped with Noctua 90x14 for CPU and GPU and 40x20 for PSU.
CLX SET GAMING Intel Core i5 8400, NVIDIA GeForce RTX 2060 6GB GDDR6, 16GB Memory, 1TB HDD + 120GB SSD Storage MS Windows 10 Home - Walmart.com
Fix the CPU bottleneck and improve Warzone performance: i5 8400 and RTX 2060 - New Builds and Planning - Linus Tech Tips
RTX 2060 Grand Theft Auto V benchmark with Intel Core i5-8400 @ 2.80GHz at Ultra Quality: 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
i5 9400F or i5 8400 for rtx 2060 ? - Graphics Cards - Linus Tech Tips
Fix the CPU bottleneck and improve Warzone performance: i5 8400 and RTX 2060 - New Builds and Planning - Linus Tech Tips
i5 8400 paired with RTX 2060 - 20 Games Tested at 1440p - Enough for 60 fps? - Performance Test - YouTube