This is my new silent beast: CASE: Jonsbo C2 MOTHERBOARD: Gigabyte GA-H270M-DS3H CPU: Intel i7-7700 HEATSINK: NOFAN CR-95C RAM: NR.4 CMK16GX4M1A2400C14 (64GB DDR4 2400Mhz) SSD: CRUCIAL MX300 1TB M.2 HDPLEX 300W AC-DC + 400W DC-ATX HDPLEX ATX PSU BRACKET I had to open the top cover for fix the motherboard. I fixed the two HDPLEX with some nylon screws/bolts. I used a shorter AC plug instead of the HDPLEX. The Heatsink touch the PSU bottom support of the chassis, so I put a rubber between them. I know that for best venting I should use a top with holes, but this is what I have This case is smaller than a Cooler Master Elite 110 but can fit some M-ATX motherboards! I have only one problem with sleep mode, but everything is working perfectly on High Sierra.