Intel Core i7-8700K, Core i5-8600K, Core i5-8400 CPU Review
FOR Gigabyte H310M-DS2 H310M Motherboard Supports I3-8100 I5-8400 Tested ok | eBay
4 Best Motherboard for i5 8400 [2023] - PCedged
1151 Motherboard Asus PRIME H370M PLUS Motherboard LGA 1151 DDR4 Intel H370 64GB PCI E 3.0 USB3.1DVI Micro ATX For Core i5 8400|Motherboards| - AliExpress