I don't know if you want to build the same kind of system but at least you can get a list of parts that work together. I use my Truenas box for storage using Z

I don't know if you want to build the same kind of system but at least you can get a list of parts that work together. I use my Truenas box for storage using ZFS, VMs and NFS server for different PCs. I bought ECC memory as I understand this is more or less a requirement for ZFS. I found out that FreeBSD which Truenas is based on can give you info about what type of RAM is present. The command is: # dmidecode -t memory According to this I have ECC RAM. :) I did a build with the following parts: Case: SST-CS380 V2 (space for 8 3.5" drives, 2 x ). Mainboard: ASRock X470D4U2-2T Power supply: Seasonic Focus Plus 550W Gold 80 Plus Full Modular Power Supply RAM: Kingston Server Premier, DDR4, 16 GB, KSM26ED8/5 M CPU: AMD Ryzen 5 3600X Wraith Spire CPU Cooler: Arctic Liquid Freezer II NVMe to PCI bridge: ASUS Hyper M.2 x16 Gen 4 (PCIe 4.0/3.0) supports 4X NVMe M.2 devices (2242/2260/2280/22110) up to 256 Gbps for AMD TRX40 / X570 PCIe 4.0 NVMe RAID and Intel® RAID platform - CPU features I bought all this from Amazon.de. The main board is a server main board with 10 GE Ethernet and a console for flashing bios and remoting into the machine - no graphics card needed. This was expensive and you can most likely save a lot using a consumer grade main board. The RAM was taken from the list provided at https://www.asrockrack.com/general/productdetail.asp?Model=X470D4U2-2T#Memory https://www.asrockrack.com/general/productdetail.asp?Model=X... The CPU models supported are here: https://www.asrockrack.com/general/productdetail.asp?Model=X470D4U2-2T#CPU https://www.asrockrack.com/general/productdetail.asp?Model=X... Be careful not to buy an AMD APU - this doesn't support ECC RAM for some insane reason. An APU would have build in graphics and the CPU. I use both SATA drives (long term storage) and SDD drives (for speed). I created two ZFS volumes (I don't remember the proper terms). One for rotating discs (which could sleep most of the time) and one using SDDs for fast storage which doesn't use much power. I have 6 KW solar cells with battery so I don't really care if the box uses a lot of power. During daylight its more or less free when sun is shining. I get next to nothing when selling the electricity that I generate and would like to use as much as possible locally.